subject:(Waveform)

1. Wang, Kai. Ultrafast Optical Pulses: Synthesis and Applications.

Degree: 2013, Texas Digital Library

URL: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66823

► This dissertation is devoted to ultrafast waveform synthesis using coherent Raman sidebands with the assistance of pulse shapers based on acousto-optic programmable dispersive ???lter (AOPDF)… (more)

▼ This dissertation is devoted to ultrafast waveform synthesis using coherent Raman sidebands with the assistance of pulse shapers based on acousto-optic programmable dispersive ???lter (AOPDF) or deformable mirror (DM). Ultrashort optical science has encompassed the realm of electronic and chemical processes taking place on the few femtosecond-to-attosecond timescale. Molecular modulation is a technique that has been developed to produce ultrafast pulses based on broadband coherent Raman scattering, which provides the required optical bandwidth. This technique is capable of producing a pulse whose duration can be shorter than one optical ???eld cycle in the visible-UV range, providing a potential for non-sinusoidal ???eld synthesis. We produce the coherent Raman sidebands in a Raman-active crystal driven by two-color femtosecond laser pulses. With the assistance of a pulse shaper based on AOPDF, we report the phase control of the ultrabroad spectrum, aiming to synthesize non-sinusoidal waveforms. The setup allows for both coarse, manual phase adjustments and programmable ???ne-tuning of spectral phases. A ???at spectral phase across these 5 frequency-separated sub-bands is achieved, which implies generation of isolated 2 to 3 optical-cycle pulses. The energy of the ultrafast waveform produced in this setup is limited by the damage threshold of the pulse shaper. In order to obtain high energy ultrafast waveforms, we design a re???ection scheme using spherical mirrors to combine the Raman sidebands. The sidebands and the driving pulses are refocused back to the Raman crystal and the relative spectral phases are retrieved from an interferogram based on nonlinear Raman interaction. Furthermore, using a DM to adjust the spectral phases, we demonstrate that our setup is capable of synthesizing ultrafast waveforms using the coherent Raman sidebands. We explore an additional ultrashort pulse generation technique, theoretically. We investigate formation of resonant dispersive waves (RDW) in photonic crystal ???bers (PCF). Our simulation shows that with an input of two pulses, or a broadband chirped pulse in a PCF, RDW could form a su???ciently short pulse in the UV region, which could be a new method to obtain the ultrashort UV pulse. In addition to studying methods for production of ultrashort pulses, we explore areas where such pulses can be utilized. The ???eld of ultrafast optics is highly interdisciplinary, with a wide range of applications. We report two experiments with femtosecond laser pulses: 1) we demonstrate a scheme which achieves sub-di???raction imaging of remote objects by using femtosecond laser ???laments. The use of laser ???laments for imaging is destined to have applications in many environments. Achieving super-resolution has become a scienti???c imperative for remote imaging of objects and scenes needing increased detail and has motivated the development of various laser-based techniques. 2)… Advisors/Committee Members: Sokolov, Alexei V (advisor).

Subjects/Keywords: ultrafast waveform synthesis

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APA (6^th Edition):

Wang, K. (2013). Ultrafast Optical Pulses: Synthesis and Applications. (Thesis). Texas Digital Library. Retrieved from http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66823

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Kai. “Ultrafast Optical Pulses: Synthesis and Applications.” 2013. Thesis, Texas Digital Library. Accessed January 24, 2021. http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66823.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Kai. “Ultrafast Optical Pulses: Synthesis and Applications.” 2013. Web. 24 Jan 2021.

Vancouver:

Wang K. Ultrafast Optical Pulses: Synthesis and Applications. [Internet] [Thesis]. Texas Digital Library; 2013. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66823.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang K. Ultrafast Optical Pulses: Synthesis and Applications. [Thesis]. Texas Digital Library; 2013. Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66823

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – San Diego

2. Cole, Scott Robert. On the waveform shape of neural oscillations.

Degree: Neurosciences, 2018, University of California – San Diego

URL: http://www.escholarship.org/uc/item/4h91c339

► Brain rhythms, or neural oscillations, are one the most prominent features of electrical brain recordings. Over the past century, they have been studied for their… (more)

Subjects/Keywords: Neurosciences; EEG; oscillation; shape; waveform

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APA (6^th Edition):

Cole, S. R. (2018). On the waveform shape of neural oscillations. (Thesis). University of California – San Diego. Retrieved from http://www.escholarship.org/uc/item/4h91c339

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Cole, Scott Robert. “On the waveform shape of neural oscillations.” 2018. Thesis, University of California – San Diego. Accessed January 24, 2021. http://www.escholarship.org/uc/item/4h91c339.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Cole, Scott Robert. “On the waveform shape of neural oscillations.” 2018. Web. 24 Jan 2021.

Vancouver:

Cole SR. On the waveform shape of neural oscillations. [Internet] [Thesis]. University of California – San Diego; 2018. [cited 2021 Jan 24]. Available from: http://www.escholarship.org/uc/item/4h91c339.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Cole SR. On the waveform shape of neural oscillations. [Thesis]. University of California – San Diego; 2018. Available from: http://www.escholarship.org/uc/item/4h91c339

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Colorado School of Mines

3. Pedrassi, Mauricio. Application of waveform tomography at Campos Basin field, Brazil.

Degree: MS(M.S.), Geophysics, 2015, Colorado School of Mines

URL: http://hdl.handle.net/11124/20239

► Campos Basin field has been continuously characterized inside the Reservoir Characterization Project (RCP). Past research includes poststack and prestack joint inversions of PP and PS… (more)

▼ Campos Basin field has been continuously characterized inside the Reservoir Characterization Project (RCP). Past research includes poststack and prestack joint inversions of PP and PS data which increased the reservoir resolution and could predict a porosity map. To further improve characterization of the Campos Basin field, waveform tomography (WT), or full waveform inversion (FWI), is performed for a 2D line from the 2010 ocean bottom cable (OBC) data under a 2D acoustic isotropic medium assumption. The goal is to bring high resolution and accuracy to the P wave velocity model for better quality reservoir imaging. In order to achieve the best results the application of WT to the 2D dataset required defining the suitable parameters to these data, where the main options in the inversion are the type of objective function, the time domain damping, and the frequency discretization. The waveform inversion has improved the final velocity model, as verified by migrated images showing more continuous and focused horizons at the reservoir depth. The improved seismic image and velocity model are possible inputs, respectively, to a new geological interpretation and to acoustic/elastic attributes inversion. However, only the background velocity was updated and the inversion failed in enhancing the resolution of the final velocity model. Waveform inversion was also performed on synthetic dataset with larger offsets generated for a reliable velocity model of the Campos Basin field. The combination of a larger offset with a waveform inversion strategy that includes amplitude and phase residuals in the objective function proved to be efficient in increasing the resolution of the final velocity model. Synthetic modeling suggests that if a new seismic acquisition program is conducted over the field, it would be highly beneficial for velocity analysis and reservoir characterization to acquire longer offsets. Advisors/Committee Members: Davis, Thomas L. (Thomas Leonard), 1947- (advisor), TSvankin, I. D. (committee member), Behura, Jyoti (committee member).

Subjects/Keywords: waveform inversion; Campos Basin

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APA (6^th Edition):

Pedrassi, M. (2015). Application of waveform tomography at Campos Basin field, Brazil. (Masters Thesis). Colorado School of Mines. Retrieved from http://hdl.handle.net/11124/20239

Chicago Manual of Style (16^th Edition):

Pedrassi, Mauricio. “Application of waveform tomography at Campos Basin field, Brazil.” 2015. Masters Thesis, Colorado School of Mines. Accessed January 24, 2021. http://hdl.handle.net/11124/20239.

MLA Handbook (7^th Edition):

Pedrassi, Mauricio. “Application of waveform tomography at Campos Basin field, Brazil.” 2015. Web. 24 Jan 2021.

Vancouver:

Pedrassi M. Application of waveform tomography at Campos Basin field, Brazil. [Internet] [Masters thesis]. Colorado School of Mines; 2015. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/11124/20239.

Council of Science Editors:

Pedrassi M. Application of waveform tomography at Campos Basin field, Brazil. [Masters Thesis]. Colorado School of Mines; 2015. Available from: http://hdl.handle.net/11124/20239

University of Utah

4. Boonyasiriwat, Chaiwoot. Acoustic waveform inversion of two-dimension Gulf of Mexico data.

Degree: MS;, Geology & Geophysics;, 2009, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1665/rec/49

► Acoustic waveform tomography can provide a velocity model with higher accuracy than traveltime tomography because the forward modeling is based on the complete wave equation… (more)

▼ Acoustic waveform tomography can provide a velocity model with higher accuracy than traveltime tomography because the forward modeling is based on the complete wave equation rather than the high-frequency approximation of ray tracing. Moreover, each trace contains both shallow and deep reflection arrivals and so is richer in information content than the first arrival traveltime. As a result, waveform tomography provides a more detailed estimate of the velocity medium than does traveltime tomography. However, acoustic waveform tomography is a highly nonlinear inverse solution that requires a good starting velocity model compared to the smooth starting model that is sufficient for traveltime tomography. To overcome the nonlinear problems in waveform tomography, I develop a novel multiscale waveform tomography method and apply it to both synthetic and marine seismic data from the Gulf of Mexico. The inversion process is carried out using a multiscale acoustic method with a dynamic early-arrival muting window to mitigate the local minima problem of waveform tomography and elastic effects in the data. This multiscale approach is denoted as multiscale waveform tomography (MWT), and is first validated with synthetic acoustic data from the 2D SEG/EAGE salt model. Using the traveltime velocity tomogram as an initial model, MWT fails to converge to the global minimum. I found that the flooding technique normally used in subsalt migration can be used to significantly improve the convergence of MWT. The velocity model recovered by MWT using the flooding technique is more accurate and highly resolved than that obtained using conventional MWT. For the marine data, MWT can provide a more accurate velocity model than the initial model from traveltime tomography. The accuracy of the waveform velocity model is verified by comparing migration images and common image gathers. I also present ray-based spatial resolution formulas for migration and inversion with numerical tests on both homogeneous and heterogeneous media. Spatial resolution formulas are validated for both homogeneous and heterogeneous velocity models. For both models, the resolution of reverse-time migration images are consistent with the estimated resolution limits with respect to the Rayleigh's resolution criterion. A long wavelength corresponds to a high velocity value and therefore both vertical and horizontal resolution limits tend to degrade with depth in the heterogeneous model â€” deeper regions have higher velocity values.

Subjects/Keywords: Acoustic waveform tomography; Ray-based spatial resolution; Multiscale waveform tomography

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APA (6^th Edition):

Boonyasiriwat, C. (2009). Acoustic waveform inversion of two-dimension Gulf of Mexico data. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1665/rec/49

Chicago Manual of Style (16^th Edition):

Boonyasiriwat, Chaiwoot. “Acoustic waveform inversion of two-dimension Gulf of Mexico data.” 2009. Masters Thesis, University of Utah. Accessed January 24, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1665/rec/49.

MLA Handbook (7^th Edition):

Boonyasiriwat, Chaiwoot. “Acoustic waveform inversion of two-dimension Gulf of Mexico data.” 2009. Web. 24 Jan 2021.

Vancouver:

Boonyasiriwat C. Acoustic waveform inversion of two-dimension Gulf of Mexico data. [Internet] [Masters thesis]. University of Utah; 2009. [cited 2021 Jan 24]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1665/rec/49.

Council of Science Editors:

Boonyasiriwat C. Acoustic waveform inversion of two-dimension Gulf of Mexico data. [Masters Thesis]. University of Utah; 2009. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1665/rec/49

University of California – Berkeley

5. Chen, Yuan-Shih. Multi-Mode Sub-Nyquist Rate D/A Converter for TV Band Cognitive Radio.

Degree: Electrical Engineering & Computer Sciences, 2012, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/6z89d8vg

► Advances in high-speed DAC implemented in deeply scaled-CMOS processes open up the possibility of direct IF and RF waveform synthesis in a next-generation digitized transmitter… (more)

▼ Advances in high-speed DAC implemented in deeply scaled-CMOS processes open up the possibility of direct IF and RF waveform synthesis in a next-generation digitized transmitter architecture. A state of the art CMOS current-steering DAC is capable of providing wide bandwidth and high dynamic range for direct RF waveform generation. This enables the mostly-digital implementation of a direct waveform synthesis transmitter for TV band cognitive radio. RF waveforms with various modulation schemes can be synthesized in the digital domain and directly converted by a high-speed DAC. The transmission characteristics can be dynamically adapted to time-varying spectral environment. This transmitter architecture brings the benefits of reconfigurability and frequency agility. However, conventional waveform synthesis requires a >2GS/s DAC to fulfill the Nyquist requirement for covering the whole TV band (54 ~ 862MHz). Nevertheless, an alternative method is to convert the signals at a sampling rate below the Nyquist requirement and extract the image spectrum in higher Nyquist zones by bandpass filters.This work demonstrates a proof-of-concept design of sub-Nyquist rate conversion and wideband direct synthesis using image spectrum. By utilizing the proposed multi-mode reconstruction, the DAC can shape the spectral envelope for enhancing the image spectrum located in the target channels. The desired transmission waveforms can be extracted from the second or third Nyquist zone by a bandpass filter. A circuit prototype demonstrating the proposed concept has been designed, fabricated, and measured in a general-purpose 65nm CMOS process.This work presents the implementation of a 600MS/s 10-bit multi-mode sub-Nyquist rate DAC that enables wideband direct waveform synthesis for TV band cognitive radio transmitters. Measurement results show SFDR >55dB across the first three Nyquist zones and a low power consumption of 30mW. The IM3 is < -60dBc in the first and second Nyquist zones and < -55dBc in the third Nyquist zone.

Subjects/Keywords: Electrical engineering; DAC; Nyquist; Synthesis; Waveform

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APA (6^th Edition):

Chen, Y. (2012). Multi-Mode Sub-Nyquist Rate D/A Converter for TV Band Cognitive Radio. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/6z89d8vg

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chen, Yuan-Shih. “Multi-Mode Sub-Nyquist Rate D/A Converter for TV Band Cognitive Radio.” 2012. Thesis, University of California – Berkeley. Accessed January 24, 2021. http://www.escholarship.org/uc/item/6z89d8vg.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chen, Yuan-Shih. “Multi-Mode Sub-Nyquist Rate D/A Converter for TV Band Cognitive Radio.” 2012. Web. 24 Jan 2021.

Vancouver:

Chen Y. Multi-Mode Sub-Nyquist Rate D/A Converter for TV Band Cognitive Radio. [Internet] [Thesis]. University of California – Berkeley; 2012. [cited 2021 Jan 24]. Available from: http://www.escholarship.org/uc/item/6z89d8vg.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chen Y. Multi-Mode Sub-Nyquist Rate D/A Converter for TV Band Cognitive Radio. [Thesis]. University of California – Berkeley; 2012. Available from: http://www.escholarship.org/uc/item/6z89d8vg

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rochester Institute of Technology

6. Cwitkowitz, Frank C, Jr. End-to-End Music Transcription Using Fine-Tuned Variable-Q Filterbanks.

Degree: MS, Computer Engineering, 2019, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/10143

► The standard time-frequency representations calculated to serve as features for musical audio may have reached the extent of their effectiveness. General-purpose features such as… (more)

Subjects/Keywords: Features; Filterbanks; Learning; Music; Transcription; Waveform

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APA (6^th Edition):

Cwitkowitz, Frank C, J. (2019). End-to-End Music Transcription Using Fine-Tuned Variable-Q Filterbanks. (Masters Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/10143

Chicago Manual of Style (16^th Edition):

Cwitkowitz, Frank C, Jr. “End-to-End Music Transcription Using Fine-Tuned Variable-Q Filterbanks.” 2019. Masters Thesis, Rochester Institute of Technology. Accessed January 24, 2021. https://scholarworks.rit.edu/theses/10143.

MLA Handbook (7^th Edition):

Cwitkowitz, Frank C, Jr. “End-to-End Music Transcription Using Fine-Tuned Variable-Q Filterbanks.” 2019. Web. 24 Jan 2021.

Vancouver:

Cwitkowitz, Frank C J. End-to-End Music Transcription Using Fine-Tuned Variable-Q Filterbanks. [Internet] [Masters thesis]. Rochester Institute of Technology; 2019. [cited 2021 Jan 24]. Available from: https://scholarworks.rit.edu/theses/10143.

Council of Science Editors:

Cwitkowitz, Frank C J. End-to-End Music Transcription Using Fine-Tuned Variable-Q Filterbanks. [Masters Thesis]. Rochester Institute of Technology; 2019. Available from: https://scholarworks.rit.edu/theses/10143

7. Kobayashi, Kazuhiro. Statistical waveform modification for speaking and singing voice conversion : 音声と歌声声質変換のための統計的波形補正; オンセイトウタゴエセイシツヘンカンノタメノトウケイテキハケイホセイ.

Degree: 博士(工学), 2017, Nara Institute of Science and Technology / 奈良先端科学技術大学院大学

URL: http://hdl.handle.net/10061/11676

Subjects/Keywords: statistical waveform modification

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APA (6^th Edition):

Kobayashi, K. (2017). Statistical waveform modification for speaking and singing voice conversion : 音声と歌声声質変換のための統計的波形補正; オンセイトウタゴエセイシツヘンカンノタメノトウケイテキハケイホセイ. (Thesis). Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Retrieved from http://hdl.handle.net/10061/11676

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kobayashi, Kazuhiro. “Statistical waveform modification for speaking and singing voice conversion : 音声と歌声声質変換のための統計的波形補正; オンセイトウタゴエセイシツヘンカンノタメノトウケイテキハケイホセイ.” 2017. Thesis, Nara Institute of Science and Technology / 奈良先端科学技術大学院大学. Accessed January 24, 2021. http://hdl.handle.net/10061/11676.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kobayashi, Kazuhiro. “Statistical waveform modification for speaking and singing voice conversion : 音声と歌声声質変換のための統計的波形補正; オンセイトウタゴエセイシツヘンカンノタメノトウケイテキハケイホセイ.” 2017. Web. 24 Jan 2021.

Vancouver:

Kobayashi K. Statistical waveform modification for speaking and singing voice conversion : 音声と歌声声質変換のための統計的波形補正; オンセイトウタゴエセイシツヘンカンノタメノトウケイテキハケイホセイ. [Internet] [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; 2017. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/10061/11676.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kobayashi K. Statistical waveform modification for speaking and singing voice conversion : 音声と歌声声質変換のための統計的波形補正; オンセイトウタゴエセイシツヘンカンノタメノトウケイテキハケイホセイ. [Thesis]. Nara Institute of Science and Technology / 奈良先端科学技術大学院大学; 2017. Available from: http://hdl.handle.net/10061/11676

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

King Abdullah University of Science and Technology

8. Zhang, Zhendong. Full Waveform Inversion Using Oriented Time Migration Method.

Degree: 2016, King Abdullah University of Science and Technology

URL: http://hdl.handle.net/10754/609440

► Full waveform inversion (FWI) for reflection events is limited by its linearized update requirements given by a process equivalent to migration. Unless the background velocity… (more)

▼ Full waveform inversion (FWI) for reflection events is limited by its linearized update requirements given by a process equivalent to migration. Unless the background velocity model is reasonably accurate the resulting gradient can have an inaccurate update direction leading the inversion to converge into what we refer to as local minima of the objective function. In this thesis, I first look into the subject of full model wavenumber to analysis the root of local minima and suggest the possible ways to avoid this problem. And then I analysis the possibility of recovering the corresponding wavenumber components through the existing inversion and migration algorithms. Migration can be taken as a generalized inversion method which mainly retrieves the high wavenumber part of the model. Conventional impedance inversion method gives a mapping relationship between the migration image (high wavenumber) and model parameters (full wavenumber) and thus provides a possible cascade inversion strategy to retrieve the full wavenumber components from seismic data. In the proposed approach, consider a mild lateral variation in the model, I find an analytical Frechet derivation corresponding to the new objective function. In the proposed approach, the gradient is given by the oriented time-domain imaging method. This is independent of the background velocity. Specifically, I apply the oriented time-domain imaging (which depends on the reflection slope instead of a background velocity) on the data residual to obtain the geometrical features of the velocity perturbation. Assuming that density is constant, the conventional 1D impedance inversion method is also applicable for 2D or 3D velocity inversion within the process of FWI. This method is not only capable of inverting for velocity, but it is also capable of retrieving anisotropic parameters relying on linearized representations of the reflection response. To eliminate the cross-talk artifacts between different parameters, I utilize what I consider being an optimal parameterization. To do so, I extend the prestack time-domain migration image in incident angle dimension to incorporate angular dependence needed by the multiparameter inversion. For simple models, this approach provides an efficient and stable way to do full waveform inversion or modified seismic inversion and makes the anisotropic inversion more practical. Results based on synthetic data of isotropic and anisotropic case examples illustrate the benefits and limitations of this method.

Subjects/Keywords: Seismic Inversion; Full Waveform Inversion; VTI

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APA (6^th Edition):

Zhang, Z. (2016). Full Waveform Inversion Using Oriented Time Migration Method. (Thesis). King Abdullah University of Science and Technology. Retrieved from http://hdl.handle.net/10754/609440

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zhang, Zhendong. “Full Waveform Inversion Using Oriented Time Migration Method.” 2016. Thesis, King Abdullah University of Science and Technology. Accessed January 24, 2021. http://hdl.handle.net/10754/609440.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zhang, Zhendong. “Full Waveform Inversion Using Oriented Time Migration Method.” 2016. Web. 24 Jan 2021.

Vancouver:

Zhang Z. Full Waveform Inversion Using Oriented Time Migration Method. [Internet] [Thesis]. King Abdullah University of Science and Technology; 2016. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/10754/609440.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zhang Z. Full Waveform Inversion Using Oriented Time Migration Method. [Thesis]. King Abdullah University of Science and Technology; 2016. Available from: http://hdl.handle.net/10754/609440

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Houston

9. Wang, Hongzhou. Fusion of Full Waveform LiDAR and Passive Remote Sensing for Improved Land-Cover Classification.

Degree: PhD, Geosensing Systems, 2016, University of Houston

URL: http://hdl.handle.net/10657/3279

► Land-cover classification is a crucial step in interpreting remote sensing data, and the accuracy determines the reliability of the product for further downstream applications. Hyperspectral… (more)

▼ Land-cover classification is a crucial step in interpreting remote sensing data, and the accuracy determines the reliability of the product for further downstream applications. Hyperspectral sensors have been widely utilized for classification because of the discrimination afforded by its rich spectral information and high resolution in both the spatial and spectral domains. On the other hand, LiDAR (Light Detection And Ranging) data has gained increasing interest for use in classification because it provides precise three-dimensional (3-D) data for large areas with precise 3-D location information, and therefore greatly expands the domain of available spatial information. Reflected laser energy from targets is also collected by LiDAR systems, and contains information regarding target backscattering properties. With the introduction of full waveform LiDAR (FWL), the possibility of using LiDAR for target discrimination has been enhanced due to the additional structural information acquired. The geometrical information and backscattering properties measured by FWL is complementary to the reflectance characteristics recorded within in Hyperspectral imagery (HI). Thus, the fusion of FWL and HI is highly desirable. There has been a fair amount of research investigating the fusion of LiDAR and HI for target characterization and land-cover classification. However discrete-return LiDAR point clouds were more thoroughly investigated in this area than FWL because of their wider availability and easier interpretation. In those studies that utilized FWL, the application of waveform data was mainly limited as a reference data source to provide height information pertaining to observed targets. Furthermore, application of fused FWL and HI data for target identification has been mostly limited to selected objects, such as trees or buildings, while the subject of land cover classification has been investigated in only a few works. This dissertation aims to build a framework for fusing FWL and HI and to demonstrate the application of the combined data set for land-cover classification without being limited to a small sample of objects. Feature extraction methods and classifier designs are proposed considering characteristics of both data sets, and performance of the proposed methods are evaluated using two data sets collected in complex scenes by the National Center for Airborne Laser Mapping (NCALM). Experimental results show that the proposed methods are successful in extracting features from reconstructed FWL data, and the proposed classification scheme effectively utilizes the combined FWL and HI features for separating ground cover features in both data sets with over 95% accuracy. Advisors/Committee Members: Glennie, Craig L. (advisor), Shrestha, Ramesh L. (committee member), Lee, Hyongki (committee member), Prasad, Saurabh (committee member), Jung, Jinha (committee member).

Subjects/Keywords: Full waveform; LiDAR; Hyperspectral imaging; Fusion; Classification

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APA (6^th Edition):

Wang, H. (2016). Fusion of Full Waveform LiDAR and Passive Remote Sensing for Improved Land-Cover Classification. (Doctoral Dissertation). University of Houston. Retrieved from http://hdl.handle.net/10657/3279

Chicago Manual of Style (16^th Edition):

Wang, Hongzhou. “Fusion of Full Waveform LiDAR and Passive Remote Sensing for Improved Land-Cover Classification.” 2016. Doctoral Dissertation, University of Houston. Accessed January 24, 2021. http://hdl.handle.net/10657/3279.

MLA Handbook (7^th Edition):

Wang, Hongzhou. “Fusion of Full Waveform LiDAR and Passive Remote Sensing for Improved Land-Cover Classification.” 2016. Web. 24 Jan 2021.

Vancouver:

Wang H. Fusion of Full Waveform LiDAR and Passive Remote Sensing for Improved Land-Cover Classification. [Internet] [Doctoral dissertation]. University of Houston; 2016. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/10657/3279.

Council of Science Editors:

Wang H. Fusion of Full Waveform LiDAR and Passive Remote Sensing for Improved Land-Cover Classification. [Doctoral Dissertation]. University of Houston; 2016. Available from: http://hdl.handle.net/10657/3279

University of Surrey

10. Jastaniah, Saddig Darwish. Development of a capture-gated fast neutron detector with pulse shape discrimination using digital pulse processing.

Degree: PhD, 2003, University of Surrey

URL: http://epubs.surrey.ac.uk/2792/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288673

► This study explores the use of digital pulse processing techniques for n/y pulse shape discrimination (PSD) in liquid scintillators, and the application of these techniques… (more)

Subjects/Keywords: 539; Waveform digitiser

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APA (6^th Edition):

Jastaniah, S. D. (2003). Development of a capture-gated fast neutron detector with pulse shape discrimination using digital pulse processing. (Doctoral Dissertation). University of Surrey. Retrieved from http://epubs.surrey.ac.uk/2792/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288673

Chicago Manual of Style (16^th Edition):

Jastaniah, Saddig Darwish. “Development of a capture-gated fast neutron detector with pulse shape discrimination using digital pulse processing.” 2003. Doctoral Dissertation, University of Surrey. Accessed January 24, 2021. http://epubs.surrey.ac.uk/2792/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288673.

MLA Handbook (7^th Edition):

Jastaniah, Saddig Darwish. “Development of a capture-gated fast neutron detector with pulse shape discrimination using digital pulse processing.” 2003. Web. 24 Jan 2021.

Vancouver:

Jastaniah SD. Development of a capture-gated fast neutron detector with pulse shape discrimination using digital pulse processing. [Internet] [Doctoral dissertation]. University of Surrey; 2003. [cited 2021 Jan 24]. Available from: http://epubs.surrey.ac.uk/2792/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288673.

Council of Science Editors:

Jastaniah SD. Development of a capture-gated fast neutron detector with pulse shape discrimination using digital pulse processing. [Doctoral Dissertation]. University of Surrey; 2003. Available from: http://epubs.surrey.ac.uk/2792/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288673

University of Illinois – Urbana-Champaign

11. Wang, Kunxuan. Characterizing vegetation structure using waveform LiDAR.

Degree: MS, Environ Engr in Civil Engr, 2016, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/93071

► The structure of light penetration through the canopy plays an important role in water, carbon, and energy fluxes between the biosphere and the atmosphere. Total… (more)

Subjects/Keywords: Waveform LiDAR; Canopy clumping; Biomass; Canopy structure

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APA (6^th Edition):

Wang, K. (2016). Characterizing vegetation structure using waveform LiDAR. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/93071

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Kunxuan. “Characterizing vegetation structure using waveform LiDAR.” 2016. Thesis, University of Illinois – Urbana-Champaign. Accessed January 24, 2021. http://hdl.handle.net/2142/93071.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Kunxuan. “Characterizing vegetation structure using waveform LiDAR.” 2016. Web. 24 Jan 2021.

Vancouver:

Wang K. Characterizing vegetation structure using waveform LiDAR. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2016. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/2142/93071.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang K. Characterizing vegetation structure using waveform LiDAR. [Thesis]. University of Illinois – Urbana-Champaign; 2016. Available from: http://hdl.handle.net/2142/93071

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Illinois – Urbana-Champaign

12. Jin, Jing. Structure of the earth’s topmost inner core from seismic waveform inversion.

Degree: PhD, Geology, 2017, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/98195

► The Earth’s solid inner core was formed from crystallization of liquid iron in the fluid outer core as the Earth slowly cools. The understanding of… (more)

▼ The Earth’s solid inner core was formed from crystallization of liquid iron in the fluid outer core as the Earth slowly cools. The understanding of the structure of the inner core, combined with high pressure and temperature experiments at core condition, and dynamic simulation, will enable us to better understand the most remote part of the Earth. Numerous seismological studies have shown great complexities of the Earth’s inner-core structure. The lateral variation of the inner-core structure is just as pronounced with hemispherical variation in isotropic velocity of the topmost inner core, in attenuation, and in seismic anisotropy. This variation is very important in studying the outer-core convection and inner-core solidification process, which is the driving mechanism of the geodynamo and the Earth’s magnetic field. However, some key features of the inner core have not been well understood, such as the relation between velocity and attenuation structure, and the global pattern of the lateral variation. In this dissertation, I put my focus on studying the velocity and attenuation structure of the topmost inner core. To address these issues, my dissertation involves two main parts: First, to map the structure of the topmost inner core, I have developed an automatic waveform inversion technique based on Neighborhood Algorithm. This method takes advantage of the triplicated PKP waveforms at epicentral distances from 130 to 142 degrees and allows us to model P-wave velocity and attenuation structure of the inner core simultaneously. It is proven to be able to resolve the structure accurate and efficient in the synthetic tests. Second, I used this waveform inversion technique to study the global patterns of the lateral variation of the topmost inner core. I conducted a systematic search of high-quality waveform data with the goal of good global data coverage and eventually selected 31 global seismic events in 1990 – 2015 with more than 2,000 seismograms. The inversion result shows strong degree 1 hemispherical velocity and attenuation structure, which agrees with previous studies. We also observed strong anisotropy of P-wave velocity at the topmost inner core in some region, which has not been discovered before. Moreover, we observed degree 2 and degree 3 structures at the topmost inner core. Both the velocity and attenuation structures correlate well with the long- wavelength features of the lowermost mantle, suggesting a strong influence of the mantle on the core. Advisors/Committee Members: Song, Xiaodong (advisor), Song, Xiaodong (Committee Chair), Bass, Jay D (committee member), Liu, Lijun (committee member), Gregg, Patricia (committee member).

Subjects/Keywords: Seismology; Inner core; Anisotropy; Waveform inversion

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jin, J. (2017). Structure of the earth’s topmost inner core from seismic waveform inversion. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/98195

Chicago Manual of Style (16^th Edition):

Jin, Jing. “Structure of the earth’s topmost inner core from seismic waveform inversion.” 2017. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed January 24, 2021. http://hdl.handle.net/2142/98195.

MLA Handbook (7^th Edition):

Jin, Jing. “Structure of the earth’s topmost inner core from seismic waveform inversion.” 2017. Web. 24 Jan 2021.

Vancouver:

Jin J. Structure of the earth’s topmost inner core from seismic waveform inversion. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2017. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/2142/98195.

Council of Science Editors:

Jin J. Structure of the earth’s topmost inner core from seismic waveform inversion. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2017. Available from: http://hdl.handle.net/2142/98195

Tampere University

13. Peruga Nasarre, Ismael. Physical waveform research for beyond 52.6 GHz in 5G NR networks .

Degree: 2020, Tampere University

URL: https://trepo.tuni.fi/handle/10024/119209

► Historically, in order to fulfil all the requirements for the new generations, the frequency bands have been expanded from generation to generation. In particular for… (more)

▼ Historically, in order to fulfil all the requirements for the new generations, the frequency bands have been expanded from generation to generation. In particular for the fifth generation new radio (5G NR), where the use of millimetre wave (mmWave) frequencies can offer higher bandwidths, communications in frequencies beyond 52.6 GHz seem really promising and are now under discussion in the 3rd Generation Partnership Project (3GPP) standardisation for the 5G NR future releases. More concretely, both academia and industry are doing research for the frequency range between 52.6 GHz and 114.25 GHz. The reasons why communications beyond 52.6 GHz are interesting is because in those frequencies, high data rate and low latency can be provided due to the large and contiguous channel bandwidth that is available. Also, new use cases can be explored in this frequency range since high accuracy positioning is possible at higher carrier frequencies, such as Orthogonal Frequency Division Multiplexing (OFDM) radar sensing, that allows new kinds of services. New challenges appear at higher frequencies, or other implementation issues that were not critical in lower frequencies start to become dominant and have to be taken into consideration while defining the new modulations and comparing the possible candidates. The main problems that have to be faced at higher frequencies are the poor propagation conditions (propagation losses are higher than in frequencies below 52.6 GHz), and the radio frequency (RF) impairments that electronic components may have, especially the lower power amplifier (PA) efficiency. Therefore, in order to have a good signal quality, if the peak to average power ratio (PAPR) of the original signal is high, the back-off should be high to make the PA work in the linear region. Thus, the waveform design has to be focused on generating signals with “nearly constant” envelope in order to be able to work closer to the saturation zone of the amplifier without distorting the signal. Also, another problem that has to be taken into account is the large phase noise (PN) present at these frequencies. The main goal of this work is the comparison between different modulations for discrete Fourier transform (DFT) Spread OFDM (DFTs-OFDM) in order to find a suitable candidate that can be part of the 5G NR communications for carrier frequencies beyond 52.6 GHz, and targeting specially low spectral efficiency (between 1 and 2 bps/Hz). Therefore, the main modulation references are pulse shaped π/2- binary phase shift keying (BPSK) and quadrature phase shift keying (QPSK) supported in 5G NR Release 15 up link (UL). In this Thesis, several modulation candidates have been tested under realistic conditions by using a 3GPP 5G NR compliant radio link simulator in Matlab. In order to find the best candidate, the waveforms should be able to present good characteristics that can overcome the problems present in mmWave communications. The main contribution of this thesis is to propose a new "constrained" phase shift keying (PSK)…

Subjects/Keywords: DFTs-OFDM; OFDM; waveform; modulation; 5G; NR

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APA (6^th Edition):

Peruga Nasarre, I. (2020). Physical waveform research for beyond 52.6 GHz in 5G NR networks . (Masters Thesis). Tampere University. Retrieved from https://trepo.tuni.fi/handle/10024/119209

Chicago Manual of Style (16^th Edition):

Peruga Nasarre, Ismael. “Physical waveform research for beyond 52.6 GHz in 5G NR networks .” 2020. Masters Thesis, Tampere University. Accessed January 24, 2021. https://trepo.tuni.fi/handle/10024/119209.

MLA Handbook (7^th Edition):

Peruga Nasarre, Ismael. “Physical waveform research for beyond 52.6 GHz in 5G NR networks .” 2020. Web. 24 Jan 2021.

Vancouver:

Peruga Nasarre I. Physical waveform research for beyond 52.6 GHz in 5G NR networks . [Internet] [Masters thesis]. Tampere University; 2020. [cited 2021 Jan 24]. Available from: https://trepo.tuni.fi/handle/10024/119209.

Council of Science Editors:

Peruga Nasarre I. Physical waveform research for beyond 52.6 GHz in 5G NR networks . [Masters Thesis]. Tampere University; 2020. Available from: https://trepo.tuni.fi/handle/10024/119209

Duquesne University

14. Carraher, Thomas B. Cymatic Revelations.

Degree: MM, Music Technology, 2016, Duquesne University

URL: https://dsc.duq.edu/etd/381

► Cymatic Revelations is a multi-media composition that aims to artistically reveal the power of vibration through the synchronous use of cymatic pattern imaging, real-time video… (more)

Subjects/Keywords: Cymatic; Geometry; Pattern; Sacred; Sound; Waveform

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APA (6^th Edition):

Carraher, T. B. (2016). Cymatic Revelations. (Thesis). Duquesne University. Retrieved from https://dsc.duq.edu/etd/381

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Carraher, Thomas B. “Cymatic Revelations.” 2016. Thesis, Duquesne University. Accessed January 24, 2021. https://dsc.duq.edu/etd/381.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Carraher, Thomas B. “Cymatic Revelations.” 2016. Web. 24 Jan 2021.

Vancouver:

Carraher TB. Cymatic Revelations. [Internet] [Thesis]. Duquesne University; 2016. [cited 2021 Jan 24]. Available from: https://dsc.duq.edu/etd/381.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Carraher TB. Cymatic Revelations. [Thesis]. Duquesne University; 2016. Available from: https://dsc.duq.edu/etd/381

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

King Abdullah University of Science and Technology

15. Lipor, John. MIMO Radar Transceiver Design for High Signal-to-Interference-Plus-Noise Ratio.

Degree: 2013, King Abdullah University of Science and Technology

URL: http://hdl.handle.net/10754/291103

► Multiple-input multiple-output (MIMO) radar employs orthogonal or partially correlated transmit signals to achieve performance benefits over its phased-array counterpart. It has been shown that MIMO… (more)

▼ Multiple-input multiple-output (MIMO) radar employs orthogonal or partially correlated transmit signals to achieve performance benefits over its phased-array counterpart. It has been shown that MIMO radar can achieve greater spatial resolution, improved signal-to-noise ratio (SNR) and target localization, and greater clutter resolution using space-time adaptive processing (STAP). This thesis explores various methods to improve the signal-to-interference-plus-noise ratio (SINR) via transmit and receive beamforming. In MIMO radar settings, it is often desirable to transmit power only to a given location or set of locations defined by a beampattern. Current methods involve a two- step process of designing the transmit covariance matrix R via iterative solutions and then using R to generate waveforms that fulfill practical constraints such as having a constant-envelope or drawing from a finite alphabet. In this document, a closed- form method to design R is proposed that utilizes the discrete Fourier transform (DFT) coefficients and Toeplitz matrices. The resulting covariance matrix fulfills the practical constraints such as positive semidefiniteness and the uniform elemental power constraint and provides performance similar to that of iterative methods, which require a much greater computation time. Next, a transmit architecture is presented  that exploits the orthogonality of frequencies at discrete DFT values to transmit a sum of orthogonal signals from each antenna. The resulting waveforms provide a lower mean-square error than current methods at a much lower computational cost, and a simulated detection scenario demonstrates the performance advantages achieved. It is also desirable to receive signal power only from a given set of directions defined by a beampattern. In a later chapter of this document, the problem of receive beampattern matching is formulated and three solutions to this problem are demonstrated. We show that partitioning the received data vector into subvectors and then multiplying each subvector with its corresponding weight vector can improve performance and reduce the length of the data vector. Simulation results show that all methods are capable of matching a desired beampattern. Signal-to-interference- plus-noise ratio (SINR) calculations demonstrate a significant improvement over the unaltered MIMO case.

Subjects/Keywords: MIMO Radar; Waveform Design; Beamforming; DFT

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APA (6^th Edition):

Lipor, J. (2013). MIMO Radar Transceiver Design for High Signal-to-Interference-Plus-Noise Ratio. (Thesis). King Abdullah University of Science and Technology. Retrieved from http://hdl.handle.net/10754/291103

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lipor, John. “MIMO Radar Transceiver Design for High Signal-to-Interference-Plus-Noise Ratio.” 2013. Thesis, King Abdullah University of Science and Technology. Accessed January 24, 2021. http://hdl.handle.net/10754/291103.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lipor, John. “MIMO Radar Transceiver Design for High Signal-to-Interference-Plus-Noise Ratio.” 2013. Web. 24 Jan 2021.

Vancouver:

Lipor J. MIMO Radar Transceiver Design for High Signal-to-Interference-Plus-Noise Ratio. [Internet] [Thesis]. King Abdullah University of Science and Technology; 2013. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/10754/291103.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lipor J. MIMO Radar Transceiver Design for High Signal-to-Interference-Plus-Noise Ratio. [Thesis]. King Abdullah University of Science and Technology; 2013. Available from: http://hdl.handle.net/10754/291103

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

16. Saleh, Mahdi. Contributions to High Range Resolution Radar Waveforms : Design of Complete Processing Chains of Various Intra-Pulse Modulated Stepped-Frequency Waveforms : Contributions à la mise en œuvre de chaînes de traitement radar fondées sur des formes d'onde à bande synthétique : Conception de chaînes de traitement complètes de diverses formes d'onde à fréquence échelonnée modulées par impulsions.

Degree: Docteur es, Automatique, Productique, Signal et Image, Ingénierie cognitique, 2020, Bordeaux

URL: http://www.theses.fr/2020BORD0024

► Dans divers systèmes radar, un grand intérêt a été porté à la sélection d’une forme d’onde et à la conception d’une chaîne de traitement complète,… (more)

▼ Dans divers systèmes radar, un grand intérêt a été porté à la sélection d’une forme d’onde et à la conception d’une chaîne de traitement complète, de l’émetteur au récepteur, afin d’obtenir un profil distance haute résolution (HRRP, acronyme de High Range Resolution Profile en anglais). Au cours des dernières décennies, les concepteurs d’algorithmes de traitement du signal radar ont concentré leur attention sur différentes formes d’onde telles que les techniques de compression d’impulsion et les systèmes à bande synthétique (SF acronyme de stepped frequency, en anglais).D’une part, trois types de formes d’onde de compression d’impulsions large bande ont été proposés dans la littérature : la forme d’onde modulée linéairement en fréquence (Linear Frequency Modulation), celle à codes de phase (Phase Coded) et la forme d’onde modulé non linéairement en fréquence (Non Linear Frequency Modulation). Ces approches sont très populaires, mais elles requièrent une fréquence d’échantillonnage généralement élevée au niveau du récepteur, et par voie de conséquence un convertisseur analogique-numérique coûteux. De plus, les formes d’onde PC et NLFM peuvent être préférables dans certaines applications à haute résolution, car elles conduisent à de meilleurs PSLR et ISLR que ceux obtenus avec la forme d’onde LFM.D’autre part, lorsqu’il s’agit de schémas SF, une fréquence d’échantillonnage moins élevée peut être envisagée, ce qui permet d’utiliser un CAN meilleur marché.Ces deux approches peuvent être combinées pour tirer avantage des deux familles. Bien que la combinaison standard mène à l’exploitation d’un CAN bon marché, les performances en termes de PSLR et ISLR ne sont pas nécessairement adaptées. Comme le PSLR et l’ISLR ont une grande influence sur la probabilité de détection et la probabilité de fausse alarme, notre objectif est de trouver des solutions alternatives. Ainsi, notre contribution dans ce mémoire de thèse consiste à proposer deux nouvelles chaînes de traitement, de l’émetteur au récepteur :1) Dans la première approche, le spectre de la forme d’onde à large bande est décomposé en un nombre prédéterminé de portions. Puis, les versions temporelles de ces dernières sont successivement transmises. Le signal reçu est alors traité soit en utilisant un algorithme FD (pour Frequency domain en anglais) modifié, soit un algorithme de reconstruction de forme d’onde réalisé directement dans le domaine temporel (TWR pour time wave reconstruction). Dans cette thèse, les formes d’ondes PC et NLFM ont été sélectionnées. Une étude comparative est alors menée entre les différentes chaînes de traitement, de l’émetteur au récepteur, que l’on peut constituer. Nos simulations montrent que les performances obtenues à partir de l’algorithme TWR sont le plus souvent meilleures que celles de l’algorithme FD modifié. La contre-partie est une augmentation du coût calculatoire. De plus, que ce soit avec une forme d’onde PC ou NLFM, l’approche présentée fournit de meilleurs résultats en termes de PSLR et ISLR que les formes d’onde SF classiques.2)… Advisors/Committee Members: Grivel, Éric (thesis director), Omar, Samir Mohamad (thesis director).

Subjects/Keywords: Forme d'onde radar; HRRP; Système à bande synthétique; Forme d’onde NLFM; Optimisation de formes d’onde; Forme d’onde PC; Radar waveform; HRRP; Stepped frequency; NLFM waveform; Waveform optimization; Phase coded waveform

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Saleh, M. (2020). Contributions to High Range Resolution Radar Waveforms : Design of Complete Processing Chains of Various Intra-Pulse Modulated Stepped-Frequency Waveforms : Contributions à la mise en œuvre de chaînes de traitement radar fondées sur des formes d'onde à bande synthétique : Conception de chaînes de traitement complètes de diverses formes d'onde à fréquence échelonnée modulées par impulsions. (Doctoral Dissertation). Bordeaux. Retrieved from http://www.theses.fr/2020BORD0024

Chicago Manual of Style (16^th Edition):

Saleh, Mahdi. “Contributions to High Range Resolution Radar Waveforms : Design of Complete Processing Chains of Various Intra-Pulse Modulated Stepped-Frequency Waveforms : Contributions à la mise en œuvre de chaînes de traitement radar fondées sur des formes d'onde à bande synthétique : Conception de chaînes de traitement complètes de diverses formes d'onde à fréquence échelonnée modulées par impulsions.” 2020. Doctoral Dissertation, Bordeaux. Accessed January 24, 2021. http://www.theses.fr/2020BORD0024.

MLA Handbook (7^th Edition):

Saleh, Mahdi. “Contributions to High Range Resolution Radar Waveforms : Design of Complete Processing Chains of Various Intra-Pulse Modulated Stepped-Frequency Waveforms : Contributions à la mise en œuvre de chaînes de traitement radar fondées sur des formes d'onde à bande synthétique : Conception de chaînes de traitement complètes de diverses formes d'onde à fréquence échelonnée modulées par impulsions.” 2020. Web. 24 Jan 2021.

Vancouver:

Saleh M. Contributions to High Range Resolution Radar Waveforms : Design of Complete Processing Chains of Various Intra-Pulse Modulated Stepped-Frequency Waveforms : Contributions à la mise en œuvre de chaînes de traitement radar fondées sur des formes d'onde à bande synthétique : Conception de chaînes de traitement complètes de diverses formes d'onde à fréquence échelonnée modulées par impulsions. [Internet] [Doctoral dissertation]. Bordeaux; 2020. [cited 2021 Jan 24]. Available from: http://www.theses.fr/2020BORD0024.

Council of Science Editors:

Saleh M. Contributions to High Range Resolution Radar Waveforms : Design of Complete Processing Chains of Various Intra-Pulse Modulated Stepped-Frequency Waveforms : Contributions à la mise en œuvre de chaînes de traitement radar fondées sur des formes d'onde à bande synthétique : Conception de chaînes de traitement complètes de diverses formes d'onde à fréquence échelonnée modulées par impulsions. [Doctoral Dissertation]. Bordeaux; 2020. Available from: http://www.theses.fr/2020BORD0024

Colorado School of Mines

17. Jarillo Michel, Oscar. Elastic waveform inversion of microseismic data in anisotropic media.

Degree: PhD, Geophysics, 2019, Colorado School of Mines

URL: http://hdl.handle.net/11124/173101

► Event location, estimation of source mechanisms, and anisotropic velocity model-building are the most important goals of microseismic monitoring of hydraulic fracturing. Waveform inversion (WI) could… (more)

▼ Event location, estimation of source mechanisms, and anisotropic velocity model-building are the most important goals of microseismic monitoring of hydraulic fracturing. Waveform inversion (WI) could provide higher-resolution, improved estimates of the source and velocity parameters compared to conventional microseismic processing methods. Such an improvement is possible because WI employs both the phase and amplitude information contained in seismic data. The first problem addressed in this thesis is estimation of the source parameters of microseismic events recorded by downhole geophones. The developed 2D WI methodology is designed to recover the location, origin time, and moment tensor of microseismic sources embedded in 2D VTI (transversely isotropic with a vertical symmetry axis) media. VTI models are typical for unconventional shale reservoirs which often exhibit strong velocity anisotropy. The algorithm operates with multicomponent wavefields modeled using a finite-difference code, and the gradient of the objective function is calculated with the adjoint-state method. Synthetic tests for data from layered VTI media recorded by vertical receiver arrays confirm that WI can constrain all source parameters, if the velocity field has been estimated and a sufficiently accurate initial model is available. Then I develop an elastic WI algorithm designed to reconstruct the 2D anisotropic velocity model along with the source parameters from microseismic data. In this implementation the source coordinates and velocity parameters are updated sequentially at each stage of the inversion to minimize parameter trade-offs and improve the convergence. Synthetic examples demonstrate the accuracy and stability of the inversion for horizontally layered VTI media. Next, the WI methodology is extended to velocity analysis of microseismic borehole data from 3D VTI media. The performance of the algorithm is evaluated on synthetic data from layer-cake and “hydraulically fractured” (i.e., containing anomalies that simulate hydraulic fractures) models. I also present initial inversion results for a microseismic data set acquired during hydraulic fracturing in a shale reservoir. Finally, the proposed methodology is generalized for 3D estimation of the microseismic source parameters. The algorithm is designed for downhole data acquired in arbitrarily heterogeneous media with orthorhombic or transversely isotropic (TI) symmetry. Shale reservoirs become orthorhombic in the presence of natural or induced fracture systems. I apply the methodology to synthetic data from layered orthorhombic media simulated for typical acquisition geometries. The tests confirm the ability of the algorithm to recover the event locations, moment tensors, and origin times provided that the 3D velocity model is known with sufficient accuracy. The thesis results should be instrumental in implementing high-resolution microseismic methods for monitoring hydraulic fracturing. Advisors/Committee Members: TSvankin, I. D. (advisor), Bozdag, Ebru (committee member), Prasad, Manika (committee member), Sava, Paul C. (committee member), Tenorio, Luis (committee member).

Subjects/Keywords: microseismic; seismology; inversion; waveform inversion; seismic anisotropy

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APA (6^th Edition):

Jarillo Michel, O. (2019). Elastic waveform inversion of microseismic data in anisotropic media. (Doctoral Dissertation). Colorado School of Mines. Retrieved from http://hdl.handle.net/11124/173101

Chicago Manual of Style (16^th Edition):

Jarillo Michel, Oscar. “Elastic waveform inversion of microseismic data in anisotropic media.” 2019. Doctoral Dissertation, Colorado School of Mines. Accessed January 24, 2021. http://hdl.handle.net/11124/173101.

MLA Handbook (7^th Edition):

Jarillo Michel, Oscar. “Elastic waveform inversion of microseismic data in anisotropic media.” 2019. Web. 24 Jan 2021.

Vancouver:

Jarillo Michel O. Elastic waveform inversion of microseismic data in anisotropic media. [Internet] [Doctoral dissertation]. Colorado School of Mines; 2019. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/11124/173101.

Council of Science Editors:

Jarillo Michel O. Elastic waveform inversion of microseismic data in anisotropic media. [Doctoral Dissertation]. Colorado School of Mines; 2019. Available from: http://hdl.handle.net/11124/173101

The Ohio State University

18. Cao, Siyang. Radar Sensing Based on Wavelets.

Degree: PhD, Electrical and Computer Engineering, 2014, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1416996784

► Radar waveform design is an active research area for decades. With the advent of advanced digital signal processing, high speed computing, high frequency electronics, and… (more)

▼ Radar waveform design is an active research area for decades. With the advent of advanced digital signal processing, high speed computing, high frequency electronics, and solid state power amplifiers, emerging radar systems (such as UWB radar, multiple-input and multiple-output (MIMO) radar, cognitive radar, etc.) are expecting more from their waveforms. Taking advantage of the new techniques, scientists and engineers are able to implement new waveforms to achieve significantly better performance for conventional radar systems, namely target detection including range, speed, and shape. The objective of this dissertation is to exploit a practical way to build flexible waveforms for the modern radar.On the other hand, conventional radar systems detect targets or pixels of an area individually. Each target or pixel generates a set of data in real-time, which must be recorded for off-line processing. When the number of elements is increased, phased array radar is able to generate narrow beams, which can detect more targets or cover larger areas for data collection in high definition. The disadvantage is the increased time in sensing since narrow beams need more time to cover the same area than wider beams. To address this issue, the sensing mechanism needs to be studied. The objective of this dissertation is to exploit a new sensing mechanism, named transform sensing, to cover wider areas, tracking more moving objects, and providing high resolution of the target area with limited times of sensing. Because the waveform design and transform sensing in this dissertation are all based on wavelets, the dissertation introduces the wavelet basics. Then the wavelet based waveform is presented. This waveform is generated by concatenating wavelet packets, and can suppress range sidelobes more effectively than the tranditional Linear Frequency Modulated (LFM) waveform. In addition, the wavelet based waveform can de-couple its envelope and carrier for range and velocity estimations, respectively, because of which the speed detection and range detection using the proposed waveform is more stable for high speed targets than the LFM waveform. Consequently, the wavelet based waveform produces higher accuracy (and resolution) in range or velocity detection. The wavelet based waveform can be applied to the Synthetic Aperture Radar (SAR) for improved performance. The range and velocity detection is directly associated with range and azimuth detection for the stripmap SAR, we further compare the wavelet based waveform with the traditional LFM in the stripmap SAR simulation.On the other hand, this dissertation discusses the feasibility of transform sensing using wavelets. First, the way in which different sensing patterns can be formed and achieve a coarse-to-detail spatial resolution is dicussed. Then, realization of different sensing patterns by the phased array is discussed in detail. Because the transform sensing is feasible to be realized by the state of the art technique, a simulation generating wavelets for different sensing patterns… Advisors/Committee Members: Zheng, Yuan (Advisor).

Subjects/Keywords: Electrical Engineering; Remote Sensing; Radar Waveform, Pulse Compression Waveform, Wavelets, Phased Array

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cao, S. (2014). Radar Sensing Based on Wavelets. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1416996784

Chicago Manual of Style (16^th Edition):

Cao, Siyang. “Radar Sensing Based on Wavelets.” 2014. Doctoral Dissertation, The Ohio State University. Accessed January 24, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1416996784.

MLA Handbook (7^th Edition):

Cao, Siyang. “Radar Sensing Based on Wavelets.” 2014. Web. 24 Jan 2021.

Vancouver:

Cao S. Radar Sensing Based on Wavelets. [Internet] [Doctoral dissertation]. The Ohio State University; 2014. [cited 2021 Jan 24]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1416996784.

Council of Science Editors:

Cao S. Radar Sensing Based on Wavelets. [Doctoral Dissertation]. The Ohio State University; 2014. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1416996784

University of Manitoba

19. Goulkhah, Mohammad (Monty). Waveform relaxation based hardware-in-the-loop simulation.

Degree: Electrical and Computer Engineering, 2014, University of Manitoba

URL: http://hdl.handle.net/1993/31012

► This thesis introduces an alternative potentially low cost solution for hardware-in-the-loop (HIL) simulation based on the waveform relaxation (WR) method. The WR tech-nique is extended… (more)

▼ This thesis introduces an alternative potentially low cost solution for hardware-in-the-loop (HIL) simulation based on the waveform relaxation (WR) method. The WR tech-nique is extended so that, without the need for a real-time simulator, the behaviour of an actual piece of physical hardware can nevertheless be tested as though it were connected to a large external electrical network. This is achieved by simulating the external network on an off-line electromagnetic transients (EMT) simulation program, and utilizing iterative exchange of waveforms between the simulation and the hardware by means of a spe-cialized Real-Time Player/Recorder (RTPR) interface device. The approach is referred to as waveform relaxation based hardware-in-the-loop (WR-HIL) simulation. To make the method possible, the thesis introduces several new innovations for stabi-lizing and accelerating the WR-HIL algorithm. It is shown that the classical WR shows poor or no convergence when at least one of the subsystems is an actual device. The noise and analog-digital converters’ quantization errors and other hardware disturbances can affect the waveforms and cause the WR to diverge. Therefore, the application of the WR method in performing HIL simulation is not straightforward and the classical WR need to be modified accordingly. Three convergence techniques are proposed to improve the WR-HIL simulation con-vergence. Each technique is evaluated by an experimental example. The stability of the WR-HIL simulation is studied and a stabilization technique is proposed to provide suffi-cient conditions for the simulation stability. The approach is also extended to include the optimization of the parameters of power system controllers located in geographically distant places. The WR-HIL simulation technique is presented with several examples. At the end of the thesis, suggestions for the future work are presented. Advisors/Committee Members: Gole, Aniruddha (Electrical and Computer Engineering) (supervisor), Filizadeh, Shaahin (Electrical and Computer Engineering) Morrison, Jason (Biosystems Engineering) Johnson, Brian (Electrical and Computer Engineering, University of Idaho) (examiningcommittee).

Subjects/Keywords: Waveform Relaxation; Hardware-in-the-Loop simulation; Waveform Relaxation convergence; HIL simulation stability; Power system equipment testing; Waveform Relaxation convergence acceleration; Distributed HIL simulation; Real-Time Player/Recorder; Controller optimization

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APA (6^th Edition):

Goulkhah, M. (. (2014). Waveform relaxation based hardware-in-the-loop simulation. (Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/31012

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Goulkhah, Mohammad (Monty). “Waveform relaxation based hardware-in-the-loop simulation.” 2014. Thesis, University of Manitoba. Accessed January 24, 2021. http://hdl.handle.net/1993/31012.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Goulkhah, Mohammad (Monty). “Waveform relaxation based hardware-in-the-loop simulation.” 2014. Web. 24 Jan 2021.

Vancouver:

Goulkhah M(. Waveform relaxation based hardware-in-the-loop simulation. [Internet] [Thesis]. University of Manitoba; 2014. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1993/31012.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Goulkhah M(. Waveform relaxation based hardware-in-the-loop simulation. [Thesis]. University of Manitoba; 2014. Available from: http://hdl.handle.net/1993/31012

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Estadual de Campinas

20. Assumpção, Antonio Carlos, 1960-. Limiar de comando ventricular de marcapasso cardíaco após choque transtorácico utilizando diferentes formatos de onda : um estudo experimental: Ventricular pacing threshold of cardiac pacemaker after transthoracic external shock with different waveforms : an experimental study.

Degree: 2013, Universidade Estadual de Campinas

URL: http://repositorio.unicamp.br/jspui/handle/REPOSIP/312971

► Abstract: Introduction. Although an increase in the ventricular pacing threshold (VPT) has been observed after administration of transthoracic shock for ventricular defibrillation, few studies have… (more)

▼ Abstract: Introduction. Although an increase in the ventricular pacing threshold (VPT) has been observed after administration of transthoracic shock for ventricular defibrillation, few studies have evaluated the phenomenon in respect to the defibrillation waveform energy. Therefore, this study examined the VPT behavior after transthoracic shock with a monophasic or biphasic energy waveform. Method. Domestic Landrace female piglets implanted with a permanent pacemaker stimulation system were divided into 3 groups: no ventricular fibrillation (VF) induction and transthoracic shock with monophasic or biphasic energy (group I); VF induction, 1 minute of observation without intervention, 2 minutes of external cardiac massage, and transthoracic shock with monophasic or biphasic energy (group II); and VF induction, 2 minutes of observation without intervention, 4 minutes of external cardiac massage, and transthoracic shock with monophasic or biphasic energy (group III). After external shock, the VPT was evaluated every minute for 10 minutes. Results. A total of 143 experiments were performed. At the end of the observation period, groups I and II showed steady VPT values. Group III showed an increase in VPT with monophasic or biphasic external energy, with no difference between the external energy sources. The monophasic but not the biphasic waveform was associated with higher VPT values when the VF was longer. Conclusion. Defibrillation does not have a significant impact on pacing threshold, but a longer VF period is related to a higher VPT after defibrillation with monophasic waveform Advisors/Committee Members: UNIVERSIDADE ESTADUAL DE CAMPINAS (CRUESP), Petrucci Junior, Orlando, 1966- (advisor), Junior, Orlando Petrucci (advisor), Universidade Estadual de Campinas. Faculdade de Ciências Médicas (institution), Programa de Pós-Graduação em Ciências da Cirurgia (nameofprogram), Bassani, Rosana Almada (committee member), Vieira, Reinaldo Wilson (committee member), Nishióka, Silvana Angelina D'Orio (committee member), Moreira, Dalmo Antonio Ribeiro (committee member).

Subjects/Keywords: Cardioversão elétrica; Desfibriladores; Limiar de estimulação ventricular; Ondas bifásicas; Ondas monofásicas; Ventricular pacing threshold; Electric countershock; Defibrillators; Monophasic waveform; Biphasic waveform

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APA (6^th Edition):

Assumpção, Antonio Carlos, 1. (2013). Limiar de comando ventricular de marcapasso cardíaco após choque transtorácico utilizando diferentes formatos de onda : um estudo experimental: Ventricular pacing threshold of cardiac pacemaker after transthoracic external shock with different waveforms : an experimental study. (Thesis). Universidade Estadual de Campinas. Retrieved from http://repositorio.unicamp.br/jspui/handle/REPOSIP/312971

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Assumpção, Antonio Carlos, 1960-. “Limiar de comando ventricular de marcapasso cardíaco após choque transtorácico utilizando diferentes formatos de onda : um estudo experimental: Ventricular pacing threshold of cardiac pacemaker after transthoracic external shock with different waveforms : an experimental study.” 2013. Thesis, Universidade Estadual de Campinas. Accessed January 24, 2021. http://repositorio.unicamp.br/jspui/handle/REPOSIP/312971.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Assumpção, Antonio Carlos, 1960-. “Limiar de comando ventricular de marcapasso cardíaco após choque transtorácico utilizando diferentes formatos de onda : um estudo experimental: Ventricular pacing threshold of cardiac pacemaker after transthoracic external shock with different waveforms : an experimental study.” 2013. Web. 24 Jan 2021.

Vancouver:

Assumpção, Antonio Carlos 1. Limiar de comando ventricular de marcapasso cardíaco após choque transtorácico utilizando diferentes formatos de onda : um estudo experimental: Ventricular pacing threshold of cardiac pacemaker after transthoracic external shock with different waveforms : an experimental study. [Internet] [Thesis]. Universidade Estadual de Campinas; 2013. [cited 2021 Jan 24]. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/312971.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Assumpção, Antonio Carlos 1. Limiar de comando ventricular de marcapasso cardíaco após choque transtorácico utilizando diferentes formatos de onda : um estudo experimental: Ventricular pacing threshold of cardiac pacemaker after transthoracic external shock with different waveforms : an experimental study. [Thesis]. Universidade Estadual de Campinas; 2013. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/312971

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Northeastern University

21. Paraskevas, Argyropoulos. Customized wavelets for fault location in power systems.

Degree: MS, Department of Electrical and Computer Engineering, 2010, Northeastern University

URL: http://hdl.handle.net/2047/d20000973

► A procedure for generating customized wavelets for detecting the location of a fault in a power transmission line is presented and analyzed. A typical fault… (more)

Subjects/Keywords: customized wavelets; fault location; power system faults; waveform peakedness; waveform sharpness; Electrical and Computer Engineering; Engineering

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APA (6^th Edition):

Paraskevas, A. (2010). Customized wavelets for fault location in power systems. (Masters Thesis). Northeastern University. Retrieved from http://hdl.handle.net/2047/d20000973

Chicago Manual of Style (16^th Edition):

Paraskevas, Argyropoulos. “Customized wavelets for fault location in power systems.” 2010. Masters Thesis, Northeastern University. Accessed January 24, 2021. http://hdl.handle.net/2047/d20000973.

MLA Handbook (7^th Edition):

Paraskevas, Argyropoulos. “Customized wavelets for fault location in power systems.” 2010. Web. 24 Jan 2021.

Vancouver:

Paraskevas A. Customized wavelets for fault location in power systems. [Internet] [Masters thesis]. Northeastern University; 2010. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/2047/d20000973.

Council of Science Editors:

Paraskevas A. Customized wavelets for fault location in power systems. [Masters Thesis]. Northeastern University; 2010. Available from: http://hdl.handle.net/2047/d20000973

NSYSU

22. Chang, Ming-Hung. Laboratory Experiments on Interfacial Wave Train across Pseudo Slope-Shelf Topography.

Degree: Master, Marine Environment and Engineering, 2011, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0620111-133317

► Equipped with advanced field instruments in the past few decades, oceanographers have been able to comprehend some characteristics of the internal waves(IWs), such as the… (more)

▼ Equipped with advanced field instruments in the past few decades, oceanographers have been able to comprehend some characteristics of the internal waves(IWs), such as the generation, propagation and energy dissipation, as well as to promote understanding in oceanography and marine ecology affected by IWs in the world ocean. Although surface gravity wave and internal wave are two of the most common natural phenomena in the ocean, the interaction between them has not been fully investigated, despite limited theoretical derivations in the literature, nor using laboratory experiments to verify the theory. A series of laboratory experiments were conducted at the National Sun Yen-sen University to study the waveform evolution of continuous IWs propagation on the flat bottom and across a trapezoidal obstacle. Surface waves were generated on a density stratified fluid system in a wave flume, from which IWs were induced indirectly to investigate their wave properties associated with their propagation . The experimental results are then used to determine the maximum depth which could be affected by surface waves in different wave conditions(wave height and period), as well as the amplitude of the IWs induced. The relationship between them are then presented in graphic form. Experiments were also conducted in uniform density and stratified fluid system with a trapezoidal obstacle. The results reveal that (1)long-period surface waves were susceptible to the interaction with the IWs in a stratified system, thus rendering wave height reduction, and (2)short-period surface waves interactions with their IWs counterparts was insignificant, hence yielded wave height similar to that in uniform density fluid system. Moreover, experiments were also conducted to study for long and short period IW propagated over pseudo slope-shelf(using trapezoidal obstacle). The results show that the variation in the IWs significantly affected the strength of internal hydraulic jump and vortices on the front slope and subsequent waveform inversion on the horizontal plateau. For IWs with short period, the horizontal distance on the plateau affected by the IWs was shirter and the total time of wave-topography interaction decreased. Advisors/Committee Members: Yu-Huai Wang (chair), JRC Hsu (committee member), Ying-Jung Yang (chair).

Subjects/Keywords: laboratory experiments; waveform evolution; short period IWs; Long period IWs

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APA (6^th Edition):

Chang, M. (2011). Laboratory Experiments on Interfacial Wave Train across Pseudo Slope-Shelf Topography. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0620111-133317

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chang, Ming-Hung. “Laboratory Experiments on Interfacial Wave Train across Pseudo Slope-Shelf Topography.” 2011. Thesis, NSYSU. Accessed January 24, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0620111-133317.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chang, Ming-Hung. “Laboratory Experiments on Interfacial Wave Train across Pseudo Slope-Shelf Topography.” 2011. Web. 24 Jan 2021.

Vancouver:

Chang M. Laboratory Experiments on Interfacial Wave Train across Pseudo Slope-Shelf Topography. [Internet] [Thesis]. NSYSU; 2011. [cited 2021 Jan 24]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0620111-133317.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chang M. Laboratory Experiments on Interfacial Wave Train across Pseudo Slope-Shelf Topography. [Thesis]. NSYSU; 2011. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0620111-133317

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

23. Liao, Chao-Yi. Performance Evaluation of Nyquist WDM System.

Degree: Master, Electro-Optical Engineering, 2013, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0625113-012322

► The steadily growing huge demand for capacity in optical fiber communication networks makes a more efficient utilization of the available bandwidth in optical fibers such… (more)

Subjects/Keywords: Nyquist WDM; Nyquist bandwidth; SINC waveform; Spectral efficiency; Rectangular spectrum

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APA (6^th Edition):

Liao, C. (2013). Performance Evaluation of Nyquist WDM System. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0625113-012322

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Liao, Chao-Yi. “Performance Evaluation of Nyquist WDM System.” 2013. Thesis, NSYSU. Accessed January 24, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0625113-012322.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Liao, Chao-Yi. “Performance Evaluation of Nyquist WDM System.” 2013. Web. 24 Jan 2021.

Vancouver:

Liao C. Performance Evaluation of Nyquist WDM System. [Internet] [Thesis]. NSYSU; 2013. [cited 2021 Jan 24]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0625113-012322.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Liao C. Performance Evaluation of Nyquist WDM System. [Thesis]. NSYSU; 2013. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0625113-012322

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

24. Yang, Chao-fu. Rectangular Frequency Spectrum based on SINC pulse to improve spectrum efficiency in the WDM Coherent System.

Degree: Master, Electro-Optical Engineering, 2014, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0617114-150921

► The optical fiber communication system has been supporting the growing demand of the internet traffic in the world. In the last century, people believed that… (more)

Subjects/Keywords: WDM; SINC waveform; Rectangular spectrum; Nyquist bandwidth; Coherent system; Spectral efficiency

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APA (6^th Edition):

Yang, C. (2014). Rectangular Frequency Spectrum based on SINC pulse to improve spectrum efficiency in the WDM Coherent System. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0617114-150921

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yang, Chao-fu. “Rectangular Frequency Spectrum based on SINC pulse to improve spectrum efficiency in the WDM Coherent System.” 2014. Thesis, NSYSU. Accessed January 24, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0617114-150921.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yang, Chao-fu. “Rectangular Frequency Spectrum based on SINC pulse to improve spectrum efficiency in the WDM Coherent System.” 2014. Web. 24 Jan 2021.

Vancouver:

Yang C. Rectangular Frequency Spectrum based on SINC pulse to improve spectrum efficiency in the WDM Coherent System. [Internet] [Thesis]. NSYSU; 2014. [cited 2021 Jan 24]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0617114-150921.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yang C. Rectangular Frequency Spectrum based on SINC pulse to improve spectrum efficiency in the WDM Coherent System. [Thesis]. NSYSU; 2014. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0617114-150921

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

25. Shih, Tsung-I. Study on Multi-Appliance Recognition by Waveform Identification Algorithm.

Degree: Master, Electrical Engineering, 2014, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718114-175647

► In order to conserve energy to reduce carbon emission, we probe into multi-appliance recognition system concerning home energy management system based on smart meter. We… (more)

Subjects/Keywords: smart meter; Dynamic time warping; waveform identification system

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APA (6^th Edition):

Shih, T. (2014). Study on Multi-Appliance Recognition by Waveform Identification Algorithm. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718114-175647

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Shih, Tsung-I. “Study on Multi-Appliance Recognition by Waveform Identification Algorithm.” 2014. Thesis, NSYSU. Accessed January 24, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718114-175647.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Shih, Tsung-I. “Study on Multi-Appliance Recognition by Waveform Identification Algorithm.” 2014. Web. 24 Jan 2021.

Vancouver:

Shih T. Study on Multi-Appliance Recognition by Waveform Identification Algorithm. [Internet] [Thesis]. NSYSU; 2014. [cited 2021 Jan 24]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718114-175647.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Shih T. Study on Multi-Appliance Recognition by Waveform Identification Algorithm. [Thesis]. NSYSU; 2014. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718114-175647

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

26. Montenij, L.J. Arterial waveform analysis in anesthesia and critical care: Theory, practical applications, and use in goal-directed strategies.

Degree: 2016, Universiteit Utrecht

URL: http://dspace.library.uu.nl:8080/handle/1874/331130

► Cardiac output and preload are important variables in the hemodynamic optimization of critically ill patients in the operating room and intensive care unit. Arterial waveform… (more)

Subjects/Keywords: cardiac output; cardiac preload; arterial waveform analysis; goal-directed therapy

11 more images…

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APA (6^th Edition):

Montenij, L. J. (2016). Arterial waveform analysis in anesthesia and critical care: Theory, practical applications, and use in goal-directed strategies. (Doctoral Dissertation). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/331130

Chicago Manual of Style (16^th Edition):

Montenij, L J. “Arterial waveform analysis in anesthesia and critical care: Theory, practical applications, and use in goal-directed strategies.” 2016. Doctoral Dissertation, Universiteit Utrecht. Accessed January 24, 2021. http://dspace.library.uu.nl:8080/handle/1874/331130.

MLA Handbook (7^th Edition):

Montenij, L J. “Arterial waveform analysis in anesthesia and critical care: Theory, practical applications, and use in goal-directed strategies.” 2016. Web. 24 Jan 2021.

Vancouver:

Montenij LJ. Arterial waveform analysis in anesthesia and critical care: Theory, practical applications, and use in goal-directed strategies. [Internet] [Doctoral dissertation]. Universiteit Utrecht; 2016. [cited 2021 Jan 24]. Available from: http://dspace.library.uu.nl:8080/handle/1874/331130.

Council of Science Editors:

Montenij LJ. Arterial waveform analysis in anesthesia and critical care: Theory, practical applications, and use in goal-directed strategies. [Doctoral Dissertation]. Universiteit Utrecht; 2016. Available from: http://dspace.library.uu.nl:8080/handle/1874/331130

University of California – Berkeley

27. French, Scott Winfield. Global Full-Waveform Tomography Using the Spectral Element Method: New Constraints on the Structure of Earth's Interior.

Degree: Earth & Planetary Science, 2014, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/5m446843

► The radially anisotropic shear-velocity structure of the earth's mantle provides a critical window on the interior dynamics of the planet, with isotropic variations interpretable in… (more)

▼ The radially anisotropic shear-velocity structure of the earth's mantle provides a critical window on the interior dynamics of the planet, with isotropic variations interpretable in terms of thermal and compositional heterogeneity and anisotropy in terms of flow. Indeed, more than 30 years after the advent of global seismic tomography, many open questions remain regarding the dual roles of temperature and composition in shaping mantle convection, as well as interactions between different dominant scales of convective phenomena. To this end, we use full-waveform inversion of the long-period teleseismic wavefield to image radially anisotropic shear-wave velocity at the scale of the entire globe. In particular, we use a technique which we have termed the "hybrid" waveform-inversion approach, which combines the accuracy and generality of the spectral finite element method (SEM) for forward modeling of the global wavefield, with non-linear asymptotic coupling theory for efficient inverse modeling. This hybrid technique helps considerably in making SEM-based global waveform inversion tractable, as it allows for the use of a rapidly converging Gauss-Newton scheme for optimization of the underlying seismic model. We take additional steps to reduce the cost of these inversions using novel techniques for treatment of the earth's crust. Namely, naive modeling of thinly layered crustal structure can lead to an overly restrictive time-stability condition in the SEM, which in turn drives up the cost these simulations. Instead, taking advantage of the physics of long-period wave propagation, we introduce alternative parameterizations of crustal structure which appear identical to the wavefield, but relax these constraints on stability.We approach this imaging problem in an iterative fashion, hoping to learn something about the earth's interior at each step. First, we present our work focused on the upper mantle and transition zone (≤ 800km depth) in the form of the global model SEMum2, discussing both its development and general properties. Second, we take a detailed look at novel structures in SEMum2 - namely, never-before-seen low-velocity structures in the upper mantle beneath the ocean basins, showing intriguing correlations with other geophysical observables (e.g. absolute plate motions and the geoid). Third, we move on to imaging of the whole mantle, examining the relationships between different scales of convective phenomena in the upper and lower mantle, and particularly those previously seen in SEMum2. Finally, we discuss novel computational aspects of our work, focusing specifically on applications of the partitioned global address-space model of parallel computation to the large-scale data-driven calculations underlying our hybrid inversion approach.

Subjects/Keywords: Geophysics; Computational Seismology; Earth Structure; Radial Anisotropy; Seismic Tomography; Waveform Inversion

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

French, S. W. (2014). Global Full-Waveform Tomography Using the Spectral Element Method: New Constraints on the Structure of Earth's Interior. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/5m446843

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

French, Scott Winfield. “Global Full-Waveform Tomography Using the Spectral Element Method: New Constraints on the Structure of Earth's Interior.” 2014. Thesis, University of California – Berkeley. Accessed January 24, 2021. http://www.escholarship.org/uc/item/5m446843.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

French, Scott Winfield. “Global Full-Waveform Tomography Using the Spectral Element Method: New Constraints on the Structure of Earth's Interior.” 2014. Web. 24 Jan 2021.

Vancouver:

French SW. Global Full-Waveform Tomography Using the Spectral Element Method: New Constraints on the Structure of Earth's Interior. [Internet] [Thesis]. University of California – Berkeley; 2014. [cited 2021 Jan 24]. Available from: http://www.escholarship.org/uc/item/5m446843.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

French SW. Global Full-Waveform Tomography Using the Spectral Element Method: New Constraints on the Structure of Earth's Interior. [Thesis]. University of California – Berkeley; 2014. Available from: http://www.escholarship.org/uc/item/5m446843

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rochester Institute of Technology

28. Wu, Jiaying. A Signal processing approach for preprocessing and 3d analysis of airborne small-footprint full waveform lidar data.

Degree: Chester F. Carlson Center for Imaging Science (COS), 2012, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/3024

► The extraction of structural object metrics from a next generation remote sensing modality, namely waveform light detection and ranging (LiDAR), has garnered increasing interest from… (more)

▼ The extraction of structural object metrics from a next generation remote sensing modality, namely waveform light detection and ranging (LiDAR), has garnered increasing interest from the remote sensing research community. However, a number of challenges need to be addressed before structural or 3D vegetation modeling can be accomplished. These include proper processing of complex, often off-nadir waveform signals, extraction of relevant waveform parameters that relate to vegetation structure, and from a quantitative modeling perspective, 3D rendering of a vegetation object from LiDAR waveforms. Three corresponding, broad research objectives therefore were addressed in this dissertation. Firstly, the raw incoming LiDAR waveform typically exhibits a stretched, misaligned, and relatively distorted character. A robust signal preprocessing chain for LiDAR waveform calibration, which includes noise reduction, deconvolution, waveform registration, and angular rectification is presented. This preprocessing chain was validated using both simulated waveform data of high fidelity 3D vegetation models, which were derived via the Digital Imaging and Remote Sensing Image Generation (DIRSIG) modeling environment and real small-footprint waveform LiDAR data, collected by the Carnegie Airborne Observatory (CAO) in a savanna region of South Africa. Results showed that the preprocessing approach significantly increased our ability to recover the temporal signal resolution, and resulted in improved waveform-based vegetation biomass estimation. Secondly, a model for savanna vegetation biomass was derived using the resultant processed waveform data and by decoding the waveform in terms of feature metrics for woody and herbaceous biomass estimation. The results confirmed that small-footprint waveform LiDAR data have significant potential in the case of this application. Finally, a 3D image clustering-based waveform LiDAR inversion model was developed for 1st order (principal branch level) 3D tree reconstruction in both leaf-off and leaf-on conditions. These outputs not only contribute to the visualization of complex tree structures, but also benefit efforts related to the quantification of vegetation structure for natural resource applications from waveform LiDAR data. Advisors/Committee Members: vanAardt, Jan.

Subjects/Keywords: 3D tree reconstruction; DIRSIG; LiDAR; Signal processing; Vegetation biomass; Waveform

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wu, J. (2012). A Signal processing approach for preprocessing and 3d analysis of airborne small-footprint full waveform lidar data. (Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/3024

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wu, Jiaying. “A Signal processing approach for preprocessing and 3d analysis of airborne small-footprint full waveform lidar data.” 2012. Thesis, Rochester Institute of Technology. Accessed January 24, 2021. https://scholarworks.rit.edu/theses/3024.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wu, Jiaying. “A Signal processing approach for preprocessing and 3d analysis of airborne small-footprint full waveform lidar data.” 2012. Web. 24 Jan 2021.

Vancouver:

Wu J. A Signal processing approach for preprocessing and 3d analysis of airborne small-footprint full waveform lidar data. [Internet] [Thesis]. Rochester Institute of Technology; 2012. [cited 2021 Jan 24]. Available from: https://scholarworks.rit.edu/theses/3024.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wu J. A Signal processing approach for preprocessing and 3d analysis of airborne small-footprint full waveform lidar data. [Thesis]. Rochester Institute of Technology; 2012. Available from: https://scholarworks.rit.edu/theses/3024

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rochester Institute of Technology

29. Josefiak, Brent. Multi-mission radar waveform design via a distributed SPEA2 genetic algorithm.

Degree: Microelectronic Engineering, 2012, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/4529

► This thesis furthers the development of Genetic Algorithms (GAs) and their application to the design of multi-mission radar waveforms. An application was developed with the… (more)

Subjects/Keywords: Distributed algorithm; Genetic algorithm; Radar; SPEA2; Waveform design

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Josefiak, B. (2012). Multi-mission radar waveform design via a distributed SPEA2 genetic algorithm. (Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/4529

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Josefiak, Brent. “Multi-mission radar waveform design via a distributed SPEA2 genetic algorithm.” 2012. Thesis, Rochester Institute of Technology. Accessed January 24, 2021. https://scholarworks.rit.edu/theses/4529.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Josefiak, Brent. “Multi-mission radar waveform design via a distributed SPEA2 genetic algorithm.” 2012. Web. 24 Jan 2021.

Vancouver:

Josefiak B. Multi-mission radar waveform design via a distributed SPEA2 genetic algorithm. [Internet] [Thesis]. Rochester Institute of Technology; 2012. [cited 2021 Jan 24]. Available from: https://scholarworks.rit.edu/theses/4529.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Josefiak B. Multi-mission radar waveform design via a distributed SPEA2 genetic algorithm. [Thesis]. Rochester Institute of Technology; 2012. Available from: https://scholarworks.rit.edu/theses/4529

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rochester Institute of Technology

30. Enslin, Jason. An evolutionary algorithm approach to simultaneous multi-mission radar waveform design.

Degree: Electrical Engineering, 2007, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/4632

► It would be beneficial with today’s cluttered electromagnetic spectrum to be able to perform multiple radar missions simultaneously from a single platform. The design of… (more)

▼ It would be beneficial with today’s cluttered electromagnetic spectrum to be able to perform multiple radar missions simultaneously from a single platform. The design of a waveform for this application would greatly benefit the radar community. Radar systems are used to perform many missions, some of which include the detection and tracking of airborne and ground moving targets as well as Synthetic Aperture Radar (SAR) imaging. There are many systems that can operate in multiple modes to perform these missions, although there is no one radar that can simultaneously perform multiple missions using the same waveform [1]. Each mission can be mathematically reduced to an objective or set of objectives that can be used to evaluate their success. These objectives are functions of numerous radar and spatial parameters such as pulse repetition frequency (prf), center frequency, bandwidth, antenna beamwidth, and azimuth look angle, among others. In this thesis, an evolutionary multi-objective optimization technique known as the Strength Pareto Evolutionary Algorithm 2 (SPEA2), developed by Zitzler and Thiele [2], was applied to the simultaneous multi-mission radar waveform design problem. Several of the radar parameters mentioned above were varied to produce diverse waveforms that were manipulated using SPEA2. Due to computational constraints, the problem was approached by using two different scaled down real world scenarios to evaluate the performance of the evolutionary waveform design on a multi-objective moving target indication (MTI) mission and a multi-objective SAR mission, respectively. Multiple experiments showed that SPEA2 can select a set of Pareto optimal waveforms that accomplish these multi-objective missions effectively according to the objective functions that were developed for these missions. Finally, a procedure is outlined to combine these multi-objective MTI and SAR missions into one scaled experiment in which a distributed computing environment could be used to provide more computational resources. Advisors/Committee Members: Amuso, Vincent.

Subjects/Keywords: Evolutionary algorithm; Radar; Simultaneous; Waveform

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Enslin, J. (2007). An evolutionary algorithm approach to simultaneous multi-mission radar waveform design. (Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/4632

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Enslin, Jason. “An evolutionary algorithm approach to simultaneous multi-mission radar waveform design.” 2007. Thesis, Rochester Institute of Technology. Accessed January 24, 2021. https://scholarworks.rit.edu/theses/4632.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Enslin, Jason. “An evolutionary algorithm approach to simultaneous multi-mission radar waveform design.” 2007. Web. 24 Jan 2021.

Vancouver:

Enslin J. An evolutionary algorithm approach to simultaneous multi-mission radar waveform design. [Internet] [Thesis]. Rochester Institute of Technology; 2007. [cited 2021 Jan 24]. Available from: https://scholarworks.rit.edu/theses/4632.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Enslin J. An evolutionary algorithm approach to simultaneous multi-mission radar waveform design. [Thesis]. Rochester Institute of Technology; 2007. Available from: https://scholarworks.rit.edu/theses/4632

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations