subject:(bistatic radar)

University of Adelaide

1. Goh, Alvin Soonlien. Bistatic synthetic aperture radar data processing and analysis.

Degree: 2012, University of Adelaide

► Synthetic Aperture Radar (SAR) operation in a bistatic configuration offers various advantages over its now well-established monostatic counterpart but also poses various challenges, among which… (more)

▼ Synthetic Aperture Radar (SAR) operation in a bistatic configuration offers various advantages over its now well-established monostatic counterpart but also poses various challenges, among which are the inversion of the raw bistatic SAR data into imagery, the maintenance of time and phase synchronisation between the separated transmitter and receiver, the application of interferometric techniques to bistatic data, and the polarimetric calibration of field-based bistatic systems in constant motion (particularly those with airborne/spaceborne components). As part of a research programme into the potential benefits and challenges of bistatic SAR, the Ingara fully polarimetric X-band airborne imaging radar system, developed and operated by the Australian Defence Science and Technology Organisation, was upgraded to conduct experimental SAR data collections in a bistatic geometry. Experimental trials of the new bistatic SAR system were conducted in 2007 and 2008 in which the existing airborne radar was operated in a fine-resolution (600 MHz bandwidth) circular spotlight-SAR mode, in conjunction with a newly developed fully polarimetric stationary ground-based bistatic receiver. These trials produced a set of fully polarimetric simultaneously collected monostatic and bistatic SAR data, collected over a wide range of bistatic angles, for research purposes. The work reported in this thesis is motivated by the various processing challenges presented by these data sets. Herein, image formation from raw spotlight-mode bistatic SAR data using the Polar Format Algorithm (PFA), particularly as it pertains to a circling-transmitter-stationary-receiver bistatic geometry, is discussed. The limitations of the first-order (plane-wave) phase approximation employed in deriving the PFA are examined for the case of a stationary-receiver bistatic collection geometry with co-planar transmitter, receiver and scatterers: expressions for the size of the focussed region are derived by restricting the magnitude of the second order phase term, and the complicated behaviour of the shape of this region in this bistatic case (which is not encountered in the monostatic case) is discussed. Fine-resolution imagery results from the PFA-based processing of simultaneously collected monostatic and bistatic data sets are shown, and results from the interferometric processing of single-pass simultaneously collected monostatic and bistatic SAR data with a relatively large (approx. 5°) grazing-angle difference and of repeat-pass bistatic data with a temporal delay of hours, both demonstrating interferometric coherence in the fine-resolution interferograms, are presented. Finally, the polarimetric calibration of a field-based bistatic SAR with an airborne component is addressed: minor variants of three previously published distributed-target-based polarimetric calibration algorithms are derived; the results of Monte Carlo numerical studies to compare their accuracies are discussed; a new calibration approach involving a hybrid of two of these algorithms which… Advisors/Committee Members: Gray, Douglas Andrew (advisor), Preiss, Mark (advisor), Stacy, N. J. S. (advisor), School of Electrical and Electronic Engineering (school).

Subjects/Keywords: bistatic radar; bistatic SAR; imaging radar; synthetic aperture radar

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APA (6^th Edition):

Goh, A. S. (2012). Bistatic synthetic aperture radar data processing and analysis. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/71871

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):

Goh, Alvin Soonlien. “Bistatic synthetic aperture radar data processing and analysis.” 2012. Thesis, University of Adelaide. Accessed January 18, 2021. http://hdl.handle.net/2440/71871.

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

MLA Handbook (7^th Edition):

Goh, Alvin Soonlien. “Bistatic synthetic aperture radar data processing and analysis.” 2012. Web. 18 Jan 2021.

Vancouver:

Goh AS. Bistatic synthetic aperture radar data processing and analysis. [Internet] [Thesis]. University of Adelaide; 2012. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/2440/71871.

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

Council of Science Editors:

Goh AS. Bistatic synthetic aperture radar data processing and analysis. [Thesis]. University of Adelaide; 2012. Available from: http://hdl.handle.net/2440/71871

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

University of Adelaide

2. Lim, Yik Ling. The modelling and simulation of passive bistatic radar.

Degree: 2013, University of Adelaide

URL: http://hdl.handle.net/2440/80577

► Passive radar systems use illuminations by transmitters of opportunity, such as digital audio broadcasts (DAB), to detect and track targets. In bistatic radar systems, the… (more)

▼ Passive radar systems use illuminations by transmitters of opportunity, such as digital audio broadcasts (DAB), to detect and track targets. In bistatic radar systems, the transmitting and receiving antennas are separate and widely spaced. In an era of strong demand for enhanced surveillance, proponents of passive bistatic radar (PBR) technology assert that it offers many benefits, in particular the use of already existing transmitters. PBR systems suffer from high system complexity however. This presents challenges for PBR designers and researchers, as testing ideas experimentally is prohibitively expensive. Direct signal interference (DSI) is a major problem in all passive radar systems and occurs when the direct signals transmitted by the illuminators are stronger than the target return signals. This can lead to a large reduction in the dynamic range that is available for target detection. DAB networks are particularly problematic because there are often a large number of illuminators present that are transmitting virtually identical signals at the same frequency. This thesis describes the development of a realistic model/simulator for a general PBR system that can be used to develop radar algorithms, DSI mitigation techniques and optimise the design of radar systems. The simulator can be applied to multi-transmitter/multi-receiver systems, which allows researchers to test ideas without building equipment. In this thesis, a brief introduction is given to PBR, including its history, challenges and an overview of radar modelling and simulation. A rudimentary PBR model is then described and verified by comparison of a simulated radar signal produced by the model with that of an off-the-air radar signal. The rudimentary model is made more realistic by the addition of more sophisticated propagation effects, namely, diffraction, multipath and depolarisation. Further enhancements are made with the development of radar cross section and antenna gain components. The model is then used to simulate a number of realistic scenarios involving typical aircraft flight paths around the University of Bath in the UK. Finally, the model is applied to the testing of a DSI mitigation technique, namely, shielding by topography, using the Bath region as a test case. The success of the simulation results suggests that the technique can be used in the Adelaide area of South Australia. The simulator serves as a virtual multi-static environment for developing applications such as a tracker. A tracker would need to function in a variety of situations, and its operation would be affected by factors such as terrain and DSI. A detailed knowledge of the propagation environment would be necessary for the development of such a tracker, and the simulator can provide this knowledge. Advisors/Committee Members: Coleman, Christopher John (advisor), Rainsford, Tamath Jane (advisor), School of Electrical and Electronic Engineering (school).

Subjects/Keywords: passive bistatic radar; modelling; simulation

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

APA (6^th Edition):

Lim, Y. L. (2013). The modelling and simulation of passive bistatic radar. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/80577

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):

Lim, Yik Ling. “The modelling and simulation of passive bistatic radar.” 2013. Thesis, University of Adelaide. Accessed January 18, 2021. http://hdl.handle.net/2440/80577.

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

MLA Handbook (7^th Edition):

Lim, Yik Ling. “The modelling and simulation of passive bistatic radar.” 2013. Web. 18 Jan 2021.

Vancouver:

Lim YL. The modelling and simulation of passive bistatic radar. [Internet] [Thesis]. University of Adelaide; 2013. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/2440/80577.

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

Council of Science Editors:

Lim YL. The modelling and simulation of passive bistatic radar. [Thesis]. University of Adelaide; 2013. Available from: http://hdl.handle.net/2440/80577

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

3. Al Mashhadani, Waleed. The use of multistaic radar in reducing the impact of wind farm on civilian radar system.

Degree: PhD, 2017, University of Manchester

URL: https://www.research.manchester.ac.uk/portal/en/theses/the-use-of-multistaic-radar-in-reducing-the-impact-of-wind-farm-on-civilian-radar-system(a80fd906-e670-42a0-9efb-ea22250c87f2).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728160

► The effects of wind farm installation on the conventional monostatic radar operation have been investigated in previous studies. The interference on radar operation is due… (more)

▼ The effects of wind farm installation on the conventional monostatic radar operation have been investigated in previous studies. The interference on radar operation is due to the complex scattering characteristics from the wind turbine structure. This research considers alternative approach for studying and potentially mitigating these negative impacts by adapting the multistatic radar system technique. This radar principle is well known and it is attracting research interest recently, but has not been applied in modelling the wind farm interference on multistatic radar detection and tracking of multiple targets. The research proposes two areas of novelties. The first area includes the simulation tool development of multistatic radar operation near a wind farm environment. The second area includes the adaptation of Range-Only target detection approach based on mathematical and/or statistical methods for target detection and tracking, such as Interval Analysis and Particle Filter. These methods have not been applied against such complex detection scenario of large number of targets within a wind farm environment. Range-Only target detection approach is often considered to achieve flexibility in design and reduction in cost and complexity of the radar system. However, this approach may require advanced signal processing techniques to effectively associate measurements from multiple sensors to estimate targets positions. This issue proved to be more challenging for the complex detection environment of a wind farm due to the increase in number of measurements from the complex radar scattering of each turbine. The research conducts a comparison between Interval Analysis and Particle Filter. The comparison is based on the performance of the two methods according to three aspects; number of real targets detected, number of ghost targets detected and the accuracy of the estimated detections. Different detection scenarios are considered for this comparison, such as single target detection, wind farm detection, and ultimately multiple targets at various elevations within a wind farm environment.

Subjects/Keywords: 621.3848; Multistatic Radar Systems; Bistatic Radar; Interval Analysis; Particle Filter

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APA (6^th Edition):

Al Mashhadani, W. (2017). The use of multistaic radar in reducing the impact of wind farm on civilian radar system. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/the-use-of-multistaic-radar-in-reducing-the-impact-of-wind-farm-on-civilian-radar-system(a80fd906-e670-42a0-9efb-ea22250c87f2).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728160

Chicago Manual of Style (16^th Edition):

Al Mashhadani, Waleed. “The use of multistaic radar in reducing the impact of wind farm on civilian radar system.” 2017. Doctoral Dissertation, University of Manchester. Accessed January 18, 2021. https://www.research.manchester.ac.uk/portal/en/theses/the-use-of-multistaic-radar-in-reducing-the-impact-of-wind-farm-on-civilian-radar-system(a80fd906-e670-42a0-9efb-ea22250c87f2).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728160.

MLA Handbook (7^th Edition):

Al Mashhadani, Waleed. “The use of multistaic radar in reducing the impact of wind farm on civilian radar system.” 2017. Web. 18 Jan 2021.

Vancouver:

Al Mashhadani W. The use of multistaic radar in reducing the impact of wind farm on civilian radar system. [Internet] [Doctoral dissertation]. University of Manchester; 2017. [cited 2021 Jan 18]. Available from: https://www.research.manchester.ac.uk/portal/en/theses/the-use-of-multistaic-radar-in-reducing-the-impact-of-wind-farm-on-civilian-radar-system(a80fd906-e670-42a0-9efb-ea22250c87f2).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728160.

Council of Science Editors:

Al Mashhadani W. The use of multistaic radar in reducing the impact of wind farm on civilian radar system. [Doctoral Dissertation]. University of Manchester; 2017. Available from: https://www.research.manchester.ac.uk/portal/en/theses/the-use-of-multistaic-radar-in-reducing-the-impact-of-wind-farm-on-civilian-radar-system(a80fd906-e670-42a0-9efb-ea22250c87f2).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728160

4. Al Mashhadani, Waleed. The Use of Multistaic Radar in Reducing the Impact of Wind Farm on Civilian Radar System.

Degree: 2017, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:306930

► The effects of wind farm installation on the conventional monostatic radar operation have been investigated in previous studies. The interference on radar operation is due… (more)

▼ The effects of wind farm installation on the conventional monostatic radar operation have been investigated in previous studies. The interference on radar operation is due to the complex scattering characteristics from the wind turbine structure. This research considers alternative approach for studying and potentially mitigating these negative impacts by adapting the multistatic radar system technique. This radar principle is well known and it is attracting research interest recently, but has not been applied in modelling the wind farm interference on multistatic radar detection and tracking of multiple targets. The research proposes two areas of novelties. The first area includes the simulation tool development of multistatic radar operation near a wind farm environment. The second area includes the adaptation of Range-Only target detection approach based on mathematical and/or statistical methods for target detection and tracking, such as Interval Analysis and Particle Filter. These methods have not been applied against such complex detection scenario of large number of targets within a wind farm environment.Range-Only target detection approach is often considered to achieve flexibility in design and reduction in cost and complexity of the radar system. However, this approach may require advanced signal processing techniques to effectively associate measurements from multiple sensors to estimate targets positions. This issue proved to be more challenging for the complex detection environment of a wind farm due to the increase in number of measurements from the complex radar scattering of each turbine.The research conducts a comparison between Interval Analysis and Particle Filter. The comparison is based on the performance of the two methods according to three aspects; number of real targets detected, number of ghost targets detected and the accuracy of the estimated detections. Different detection scenarios are considered for this comparison, such as single target detection, wind farm detection, and ultimately multiple targets at various elevations within a wind farm environment. Advisors/Committee Members: SLOAN, ROBIN R, Sloan, Robin, Brown, Tony.

Subjects/Keywords: Multistatic Radar Systems; Bistatic Radar; Interval Analysis; Particle Filter.

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

APA (6^th Edition):

Al Mashhadani, W. (2017). The Use of Multistaic Radar in Reducing the Impact of Wind Farm on Civilian Radar System. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:306930

Chicago Manual of Style (16^th Edition):

Al Mashhadani, Waleed. “The Use of Multistaic Radar in Reducing the Impact of Wind Farm on Civilian Radar System.” 2017. Doctoral Dissertation, University of Manchester. Accessed January 18, 2021. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:306930.

MLA Handbook (7^th Edition):

Al Mashhadani, Waleed. “The Use of Multistaic Radar in Reducing the Impact of Wind Farm on Civilian Radar System.” 2017. Web. 18 Jan 2021.

Vancouver:

Al Mashhadani W. The Use of Multistaic Radar in Reducing the Impact of Wind Farm on Civilian Radar System. [Internet] [Doctoral dissertation]. University of Manchester; 2017. [cited 2021 Jan 18]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:306930.

Council of Science Editors:

Al Mashhadani W. The Use of Multistaic Radar in Reducing the Impact of Wind Farm on Civilian Radar System. [Doctoral Dissertation]. University of Manchester; 2017. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:306930

University of Oklahoma

5. Lievsay, James. Passive Radar Clutter Modeling and Emitter Selection for Ground Moving Target Indication.

Degree: PhD, 2017, University of Oklahoma

URL: http://hdl.handle.net/11244/51872

► Moving target detection with a passive radar system relies on many competing and coupled variables. When simulating a passive bistatic radar (PBR) system for ground… (more)

▼ Moving target detection with a passive radar system relies on many competing and coupled variables. When simulating a passive bistatic radar (PBR) system for ground moving target indication (GMTI) a three-dimensional model is critical. The signal path geometry induced from separating the radar receiver and transmitter causes several performance effects that change with location. Since a performance prediction is only as good as the model, the choice of how to model clutter becomes important. Measured data of bistatic clutter shows that the received clutter power depends on scattering angles. Therefore, a new in-plane out-of-plane (IPOP) interpolation model was developed. The IPOP model causes high clutter returns to reside in regions near an in-plane orientation (forward or backward scattering). The model produces a more localized clutter spectrum in angle-Doppler space when compared to monostatic radar. Generally, the stationary transmitter is modeled as a communication emitter due to the availability. These continuous waveforms must be partitioned as pulses spaced at constant intervals over the coherent processing interval (CPI). This diverse pulse train is non-ideal for pulse-Doppler radars. The waveform produces high range sidelobes and causes colored noise to spread in Doppler. It is shown for the first time that these waveform effects can be modeled through a covariance matrix taper (CMT). Choosing an optimal emitter becomes an interesting problem when multiple emitters are present. A common metric for GMTI when using space-time adaptive processing (STAP) is signal-to-interference-plus-noise ratio (SINR). However, SINR changes based off relative geometries, and GMTI depends on where a target's location and two-dimensional velocity maps into angle-Doppler space. Therefore, average SINR, weighted average SINR, minimum SINR, and usable velocity space fraction (UVSF) are the newly developed metrics proposed for down-selecting to an optimal emitter. The choice of metric is extremely dependent on the scenario. Finally, in STAP large clutter discretes (LCDs) can cause either false alarms or missed detections. Ultimately, they contaminate the data, and it is very desirable, yet very hard, to remove LCDs. However, the clutter structure in angle-Doppler space for PBR can offer a benefit for removing an LCD. Due to the fact that bistatic clutter can be more localized in angle-Doppler, the detection and estimation of an LCD can be accomplished for an out-of-plane geometry. Then the LCD can be successfully removed from the data, and new application of spectral estimation techniques have been developed for this purpose. Advisors/Committee Members: Goodman, Nathan (advisor), Fulton, Caleb (committee member), Jackson, Julie (committee member), Palmer, Robert (committee member), Yeary, Mark (committee member).

Subjects/Keywords: Radar Signal Processing; Space-Time Adaptive Processing; Passive Bistatic Radar

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

APA (6^th Edition):

Lievsay, J. (2017). Passive Radar Clutter Modeling and Emitter Selection for Ground Moving Target Indication. (Doctoral Dissertation). University of Oklahoma. Retrieved from http://hdl.handle.net/11244/51872

Chicago Manual of Style (16^th Edition):

Lievsay, James. “Passive Radar Clutter Modeling and Emitter Selection for Ground Moving Target Indication.” 2017. Doctoral Dissertation, University of Oklahoma. Accessed January 18, 2021. http://hdl.handle.net/11244/51872.

MLA Handbook (7^th Edition):

Lievsay, James. “Passive Radar Clutter Modeling and Emitter Selection for Ground Moving Target Indication.” 2017. Web. 18 Jan 2021.

Vancouver:

Lievsay J. Passive Radar Clutter Modeling and Emitter Selection for Ground Moving Target Indication. [Internet] [Doctoral dissertation]. University of Oklahoma; 2017. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11244/51872.

Council of Science Editors:

Lievsay J. Passive Radar Clutter Modeling and Emitter Selection for Ground Moving Target Indication. [Doctoral Dissertation]. University of Oklahoma; 2017. Available from: http://hdl.handle.net/11244/51872

University of Oklahoma

6. Dower, William. Advances in Synthetic Aperture Radar from a Wavenumber Perspective.

Degree: PhD, 2017, University of Oklahoma

URL: http://hdl.handle.net/11244/52722

► This dissertation examines the wavenumber domain of Synthetic Aperture Radar (SAR) images. This domain is the inverse Fourier transform domain of a SAR image. The… (more)

Subjects/Keywords: synthetic aperture radar; image resolution; back projection; bistatic radar

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

APA (6^th Edition):

Dower, W. (2017). Advances in Synthetic Aperture Radar from a Wavenumber Perspective. (Doctoral Dissertation). University of Oklahoma. Retrieved from http://hdl.handle.net/11244/52722

Chicago Manual of Style (16^th Edition):

Dower, William. “Advances in Synthetic Aperture Radar from a Wavenumber Perspective.” 2017. Doctoral Dissertation, University of Oklahoma. Accessed January 18, 2021. http://hdl.handle.net/11244/52722.

MLA Handbook (7^th Edition):

Dower, William. “Advances in Synthetic Aperture Radar from a Wavenumber Perspective.” 2017. Web. 18 Jan 2021.

Vancouver:

Dower W. Advances in Synthetic Aperture Radar from a Wavenumber Perspective. [Internet] [Doctoral dissertation]. University of Oklahoma; 2017. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11244/52722.

Council of Science Editors:

Dower W. Advances in Synthetic Aperture Radar from a Wavenumber Perspective. [Doctoral Dissertation]. University of Oklahoma; 2017. Available from: http://hdl.handle.net/11244/52722

Delft University of Technology

7. Laguduvan Thyagarajan, Prithvi (author). STEREOID Data Processor: Design and Performance Analysis.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:308e045d-f8c4-41d2-baa6-e2d2197d63c7

►

Stereo Thermo-Optically Enhanced Radar for Earth, Ocean, Ice, and land Dynamics (STEREOID) is one of the candidates of the ESA (European Space Agency) , Earth… (more)

Subjects/Keywords: STEREOID mission; Bistatic radar; Bistatic TOPS mode; Synthetic Aperture Radar; Azimuth beamforming; end-to-end simulator

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APA (6^th Edition):

Laguduvan Thyagarajan, P. (. (2019). STEREOID Data Processor: Design and Performance Analysis. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:308e045d-f8c4-41d2-baa6-e2d2197d63c7

Chicago Manual of Style (16^th Edition):

Laguduvan Thyagarajan, Prithvi (author). “STEREOID Data Processor: Design and Performance Analysis.” 2019. Masters Thesis, Delft University of Technology. Accessed January 18, 2021. http://resolver.tudelft.nl/uuid:308e045d-f8c4-41d2-baa6-e2d2197d63c7.

MLA Handbook (7^th Edition):

Laguduvan Thyagarajan, Prithvi (author). “STEREOID Data Processor: Design and Performance Analysis.” 2019. Web. 18 Jan 2021.

Vancouver:

Laguduvan Thyagarajan P(. STEREOID Data Processor: Design and Performance Analysis. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 18]. Available from: http://resolver.tudelft.nl/uuid:308e045d-f8c4-41d2-baa6-e2d2197d63c7.

Council of Science Editors:

Laguduvan Thyagarajan P(. STEREOID Data Processor: Design and Performance Analysis. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:308e045d-f8c4-41d2-baa6-e2d2197d63c7

University of Adelaide

8. Anderson, Nathan John. Effects of the troposphere upon radio communications and implications for weather measurement.

Degree: 2018, University of Adelaide

URL: http://hdl.handle.net/2440/118192

► The aim of this research is to use observations of Very High Frequency (VHF) radio wave propagation to estimate the refractive index of air over… (more)

Subjects/Keywords: Radio waves; propagation; refractivity; passive bistatic radar techniques; weather prediction models

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

APA (6^th Edition):

Anderson, N. J. (2018). Effects of the troposphere upon radio communications and implications for weather measurement. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/118192

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):

Anderson, Nathan John. “Effects of the troposphere upon radio communications and implications for weather measurement.” 2018. Thesis, University of Adelaide. Accessed January 18, 2021. http://hdl.handle.net/2440/118192.

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

MLA Handbook (7^th Edition):

Anderson, Nathan John. “Effects of the troposphere upon radio communications and implications for weather measurement.” 2018. Web. 18 Jan 2021.

Vancouver:

Anderson NJ. Effects of the troposphere upon radio communications and implications for weather measurement. [Internet] [Thesis]. University of Adelaide; 2018. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/2440/118192.

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

Council of Science Editors:

Anderson NJ. Effects of the troposphere upon radio communications and implications for weather measurement. [Thesis]. University of Adelaide; 2018. Available from: http://hdl.handle.net/2440/118192

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

Brno University of Technology

9. Benko, Matej. Vyhodnocení úspěšnosti filtrů při sledování cílů: Comparison of filters in target tracking.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/179356

► The topic of this bachelor thesis is Optimal Bayesian estimate usage in target tracking with bistatic measurement. The thesis is focused on particle filtering. It… (more)

Subjects/Keywords: bistatický radar; Bayesov odhad skrytého stavu; časticová filtrácia; bistatic radar; Optimal Bayesian estimate; particle filtering

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

APA (6^th Edition):

Benko, M. (2019). Vyhodnocení úspěšnosti filtrů při sledování cílů: Comparison of filters in target tracking. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/179356

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):

Benko, Matej. “Vyhodnocení úspěšnosti filtrů při sledování cílů: Comparison of filters in target tracking.” 2019. Thesis, Brno University of Technology. Accessed January 18, 2021. http://hdl.handle.net/11012/179356.

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

MLA Handbook (7^th Edition):

Benko, Matej. “Vyhodnocení úspěšnosti filtrů při sledování cílů: Comparison of filters in target tracking.” 2019. Web. 18 Jan 2021.

Vancouver:

Benko M. Vyhodnocení úspěšnosti filtrů při sledování cílů: Comparison of filters in target tracking. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11012/179356.

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

Council of Science Editors:

Benko M. Vyhodnocení úspěšnosti filtrů při sledování cílů: Comparison of filters in target tracking. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/179356

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

University of Dayton

10. Alanazi, Turki Mohammed J. Electronic Protection Using Two Non-Coherent Marine Radars.

Degree: PhD, Electrical and Computer Engineering, 2018, University of Dayton

URL: http://rave.ohiolink.edu/etdc/view?acc_num=dayton1533210598750943

► The goal of this research is to develop a method that allows for the processing of bistatic modified non-coherent marine radar’s signals coherently, for the… (more)

Subjects/Keywords: Electrical Engineering; DRFM; electronic protection; non-coherent radar; bistatic radar; radar detection and tracking; cross-correlation

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APA (6^th Edition):

Alanazi, T. M. J. (2018). Electronic Protection Using Two Non-Coherent Marine Radars. (Doctoral Dissertation). University of Dayton. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=dayton1533210598750943

Chicago Manual of Style (16^th Edition):

Alanazi, Turki Mohammed J. “Electronic Protection Using Two Non-Coherent Marine Radars.” 2018. Doctoral Dissertation, University of Dayton. Accessed January 18, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1533210598750943.

MLA Handbook (7^th Edition):

Alanazi, Turki Mohammed J. “Electronic Protection Using Two Non-Coherent Marine Radars.” 2018. Web. 18 Jan 2021.

Vancouver:

Alanazi TMJ. Electronic Protection Using Two Non-Coherent Marine Radars. [Internet] [Doctoral dissertation]. University of Dayton; 2018. [cited 2021 Jan 18]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=dayton1533210598750943.

Council of Science Editors:

Alanazi TMJ. Electronic Protection Using Two Non-Coherent Marine Radars. [Doctoral Dissertation]. University of Dayton; 2018. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=dayton1533210598750943

The Ohio State University

11. Sugavanam, Nithin. Compressive sampling in radar imaging.

Degree: PhD, Electrical and Computer Engineering, 2017, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1503277528254942

► Multi-channel wideband radar has proven to be an indispensable tool for many surveillance applications. However, achieving higher resolution with current architectures comes at the cost… (more)

▼ Multi-channel wideband radar has proven to be an indispensable tool for many surveillance applications. However, achieving higher resolution with current architectures comes at the cost of lower dynamic range for the sensor. Recent theoretical advances in the area of compressive sensing provide a new framework for sampling and processing sensor signals at a rate that scales with the information content and complexity of the scene. For the case of delay estimation - a core problem in radar sensing - compressive sensing provides a theoretical guarantee for successful recovery using Klog (N/K) compressed measurements of K scatterers over a delay space of N bins. Previous practical implementations of compressive sampling radar attempted to reduce sampling complexity at the expense of increased complexity in receivers realizing unstructured random projections. In this thesis, we study the problem of developing structured acquisition systems that exploit the underlying structure of radar signals to provide provable performance guarantees and reduced design complexity .Broadly, our work is divided into two parts. In the first part, we present a compressive radar design that employs structured waveforms on transmit and reduced complexity sub-sampling on receive with recovery guarantees of target parameters at sub-Nyquist rates. The proposed framework lends itself to practical hardware implementation as it utilizes standard linear frequency modulated waveforms mixed with sinusoidal tones and receivers with an approximated matched filter termed as stretch processor and a uniform sampling rate Analog to digital converter (ADC). Also, this structure simplifies the calibration step in practical systems because the number of random elements is minimized. We extend this illumination approach to a multiple input and output (MIMO) radar architecture and establish uniform as well as non-uniform recovery guarantees, given a sufficient number of modulating tones. We also present a method for calibrating the system for a class of uncertainty that arises in practical implementations.In the second part, we consider wide-angle synthetic aperture radar (SAR) imaging with collocated transmitter and receiver. Wide-angle SAR plays a key role in solving the target recognition problem as this scheme obtains a detailed description of the scene as a function of both viewing angle and spatial coordinates. We recover the scattering coefficients as a function of spatial locations and viewing angle from incomplete and noisy measurements. We classify an observed sub-sequence of phase-history measurements based on the nearest neighbor method using the models obtained. We empirically verify the performance of such an approach by utilizing the probability of error as a metric. We note that the performance does not deteriorate as long as we have a sufficient number of samples. We extend this method to the bistatic setup with separated transmitter and receiver to recover the scattering coefficients as a function of the spatial locations, bistatic angle, and… Advisors/Committee Members: Ertin, Emre (Advisor).

Subjects/Keywords: Electrical Engineering; Compressive sampling; MIMO radar imaging; Monostatic synthetic aperture radar imaging; Bistatic synthetic aperture radar imaging

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APA (6^th Edition):

Sugavanam, N. (2017). Compressive sampling in radar imaging. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1503277528254942

Chicago Manual of Style (16^th Edition):

Sugavanam, Nithin. “Compressive sampling in radar imaging.” 2017. Doctoral Dissertation, The Ohio State University. Accessed January 18, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1503277528254942.

MLA Handbook (7^th Edition):

Sugavanam, Nithin. “Compressive sampling in radar imaging.” 2017. Web. 18 Jan 2021.

Vancouver:

Sugavanam N. Compressive sampling in radar imaging. [Internet] [Doctoral dissertation]. The Ohio State University; 2017. [cited 2021 Jan 18]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1503277528254942.

Council of Science Editors:

Sugavanam N. Compressive sampling in radar imaging. [Doctoral Dissertation]. The Ohio State University; 2017. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1503277528254942

University of Michigan

12. Elliott, Harvey. Using Multipath Interference to Probe Subsurface Soil Properties on Mars and Beyond.

Degree: PhD, Atmospheric, Oceanic & Space Science, 2018, University of Michigan

URL: http://hdl.handle.net/2027.42/147544

► Global Navigation Satellite Systems Reflectometry (GNSS-R) has shown that multipath interference signals offer an opportunity for passive devices to make measurements of the soil moisture,… (more)

▼ Global Navigation Satellite Systems Reflectometry (GNSS-R) has shown that multipath interference signals offer an opportunity for passive devices to make measurements of the soil moisture, snow pack depth, and other quantities of scientific interest here on Earth. We expand upon this technique and propose that X-band microwave telecom signals can similarly be used to infer the sub-surface dielectric profile of the Earth, Mars, and other planetary bodies. The dielectric profile may reveal changes in the soil water content, the depth of a layer of sand, thickness of a layer of ice, and identify a subsurface layer of brine. We have created a numerical ray-tracing model to understand the potential of different microwave frequencies to probe the subsurface, to understand the trade between different polarizations, and to understand the sensitivity to changes in incidence angle and surface roughness features. This model has been validated through laboratory experiments using controlled layered beds of sand and bedrock. And finally, the model is used to extrapolate how this technique may be applied to future Mars missions. Here we present new results demonstrating how to characterize a multipath interference pattern as a function of frequency and/or incidence angle to measure the thickness of a dielectric layer of sand or ice. Our results demonstrate that dielectric discontinuities in the subsurface can be measured using X-band bistatic radar to effectively measure the thickness of a dielectric layer in the proximity of a landed spacecraft. In the case of an orbiter, we believe this technique would be effective at measuring the seasonal thickness of CO2 ice in the polar regions and potentially identify the presence of brines underneath that ice. This is exciting because our method can produce results similar to traditional ground penetrating radar without the need to have an active radar transmitter onboard the spacecraft. It is possible that future telecommunications systems can serve as both a radio and a scientific instrument, thereby reducing the mass and power required for future interplanetary missions. Advisors/Committee Members: Renno, Nilton O (committee member), Sarabandi, Kamal (committee member), De Roo, Roger Dean (committee member), McKague, Darren Shawn (committee member), Ruf, Christopher S (committee member).

Subjects/Keywords: Bistatic Radar; Multipath Interference; Soil Properties; Mars; Atmospheric, Oceanic and Space Sciences; Science

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APA (6^th Edition):

Elliott, H. (2018). Using Multipath Interference to Probe Subsurface Soil Properties on Mars and Beyond. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/147544

Chicago Manual of Style (16^th Edition):

Elliott, Harvey. “Using Multipath Interference to Probe Subsurface Soil Properties on Mars and Beyond.” 2018. Doctoral Dissertation, University of Michigan. Accessed January 18, 2021. http://hdl.handle.net/2027.42/147544.

MLA Handbook (7^th Edition):

Elliott, Harvey. “Using Multipath Interference to Probe Subsurface Soil Properties on Mars and Beyond.” 2018. Web. 18 Jan 2021.

Vancouver:

Elliott H. Using Multipath Interference to Probe Subsurface Soil Properties on Mars and Beyond. [Internet] [Doctoral dissertation]. University of Michigan; 2018. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/2027.42/147544.

Council of Science Editors:

Elliott H. Using Multipath Interference to Probe Subsurface Soil Properties on Mars and Beyond. [Doctoral Dissertation]. University of Michigan; 2018. Available from: http://hdl.handle.net/2027.42/147544

Penn State University

13. Fairchild, Dustin Paul. Classification and Modeling of Human Activities Using Empirical Mode Decomposition with S-Band and Millimeter-Wave Micro-Doppler Radars.

Degree: 2013, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/19573

► The ability to identify human movements can be an important tool in many different applications such as surveillance, military combat situations, search and rescue operations,… (more)

▼ The ability to identify human movements can be an important tool in many different applications such as surveillance, military combat situations, search and rescue operations, and patient monitoring in hospitals. This information can provide soldiers, security personnel, and search and rescue workers with critical knowledge that can be used to potentially save lives and/or avoid a dangerous situation. Most research involving human activity recognition is focused on using the Short-Time Fourier Transform (STFT) as a method of analyzing the micro-Doppler signatures. Because of the time-frequency resolution limitations of the STFT and because Fourier transform-based methods are not well-suited for use with non-stationary and nonlinear signals, we have chosen a diff�erent approach for classification. Empirical Mode Decomposition (EMD) has been shown to be a valuable time-frequency method for processing non-stationary and nonlinear data such as micro-Doppler signatures and EMD readily provides a feature vector that can be utilized for classification. For classification, the method of a Support Vector Machine (SVM) was chosen. SVMs have been widely used as a method of pattern recognition due to their ability to generalize well and also because of their moderately simple implementation. In this dissertation, we discuss the ability of these methods to accurately identify human movements based on their micro-Doppler signatures obtained from S-band and millimeter-wave radar systems. Comparisons will also be made based on experimental results from each of these radar systems. Furthermore, we will present simulations of micro-Doppler movements for stationary subjects that will enable us to compare our experimental Doppler data to what we would expect from an "ideal" movement. The Doppler radars that were developed for human activity classification consisted of a transmitter and a single receiver that are colocated in a quasi-monostatic con�figuration. Thus, only the radial component of the target's velocity produces a Doppler signal. If the target is moving tangentially to the radar line of sight, Doppler signals cannot be detected. To remedy this, multiple bistatic radars can be utilized so that if one receiver does not detect Doppler, the other will. In addition to providing more information for classification purposes, multiple Doppler sensors can also be employed to determine a moving target's orientation by comparing the Doppler frequency shift at each sensor. The algorithm developed here uses the relationship between the Doppler frequencies measured at each sensor to determine the oscillation angle of the target. Experiments have been performed which show excellent agreement with simulations for both the mechanical motion of a swinging pendulum and also for simple human motions. These capabilities are discussed in detail and the experimental results are shown for a micro-Doppler radar system with a single transmitter and two receivers. Classification results using a 2-sensor micro-Doppler radar are be presented. Advisors/Committee Members: Ram Mohan Narayanan, Dissertation Advisor/Co-Advisor, Ram Mohan Narayanan, Committee Chair/Co-Chair, Timothy Joseph Kane, Committee Member, Randy Young, Committee Member, Kamesh Madduri, Committee Member.

Subjects/Keywords: Micro-Doppler Radar; Empirical Mode Decomposition; Support Vector Machine; Human Motion Classification; Bistatic Doppler

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APA (6^th Edition):

Fairchild, D. P. (2013). Classification and Modeling of Human Activities Using Empirical Mode Decomposition with S-Band and Millimeter-Wave Micro-Doppler Radars. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/19573

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):

Fairchild, Dustin Paul. “Classification and Modeling of Human Activities Using Empirical Mode Decomposition with S-Band and Millimeter-Wave Micro-Doppler Radars.” 2013. Thesis, Penn State University. Accessed January 18, 2021. https://submit-etda.libraries.psu.edu/catalog/19573.

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

MLA Handbook (7^th Edition):

Fairchild, Dustin Paul. “Classification and Modeling of Human Activities Using Empirical Mode Decomposition with S-Band and Millimeter-Wave Micro-Doppler Radars.” 2013. Web. 18 Jan 2021.

Vancouver:

Fairchild DP. Classification and Modeling of Human Activities Using Empirical Mode Decomposition with S-Band and Millimeter-Wave Micro-Doppler Radars. [Internet] [Thesis]. Penn State University; 2013. [cited 2021 Jan 18]. Available from: https://submit-etda.libraries.psu.edu/catalog/19573.

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

Council of Science Editors:

Fairchild DP. Classification and Modeling of Human Activities Using Empirical Mode Decomposition with S-Band and Millimeter-Wave Micro-Doppler Radars. [Thesis]. Penn State University; 2013. Available from: https://submit-etda.libraries.psu.edu/catalog/19573

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

Luleå University of Technology

14. Teresa, Cardin. Cell phone based radar.

Degree: 2009, Luleå University of Technology

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-48397

►

The purpose of this project is to find out whether it is possible to use the cell phone system as a bistatic radar system.… (more)

Subjects/Keywords: Technology; bistatic radar; cell phone; Teknik

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APA (6^th Edition):

Teresa, C. (2009). Cell phone based radar. (Thesis). Luleå University of Technology. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-48397

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):

Teresa, Cardin. “Cell phone based radar.” 2009. Thesis, Luleå University of Technology. Accessed January 18, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-48397.

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

MLA Handbook (7^th Edition):

Teresa, Cardin. “Cell phone based radar.” 2009. Web. 18 Jan 2021.

Vancouver:

Teresa C. Cell phone based radar. [Internet] [Thesis]. Luleå University of Technology; 2009. [cited 2021 Jan 18]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-48397.

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

Council of Science Editors:

Teresa C. Cell phone based radar. [Thesis]. Luleå University of Technology; 2009. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-48397

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

15. ABIVEN PIERRICK. Passive bistatic radar imaging of aircraft using FM broadcast signals.

Degree: 2014, National University of Singapore

URL: http://scholarbank.nus.edu.sg/handle/10635/107405

Subjects/Keywords: Passive; Bistatic; Radar; Imaging; Tomography; Simulation

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APA (6^th Edition):

PIERRICK, A. (2014). Passive bistatic radar imaging of aircraft using FM broadcast signals. (Thesis). National University of Singapore. Retrieved from http://scholarbank.nus.edu.sg/handle/10635/107405

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):

PIERRICK, ABIVEN. “Passive bistatic radar imaging of aircraft using FM broadcast signals.” 2014. Thesis, National University of Singapore. Accessed January 18, 2021. http://scholarbank.nus.edu.sg/handle/10635/107405.

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

MLA Handbook (7^th Edition):

PIERRICK, ABIVEN. “Passive bistatic radar imaging of aircraft using FM broadcast signals.” 2014. Web. 18 Jan 2021.

Vancouver:

PIERRICK A. Passive bistatic radar imaging of aircraft using FM broadcast signals. [Internet] [Thesis]. National University of Singapore; 2014. [cited 2021 Jan 18]. Available from: http://scholarbank.nus.edu.sg/handle/10635/107405.

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

Council of Science Editors:

PIERRICK A. Passive bistatic radar imaging of aircraft using FM broadcast signals. [Thesis]. National University of Singapore; 2014. Available from: http://scholarbank.nus.edu.sg/handle/10635/107405

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

16. Mohan, Abishek. Bistatic Radar Land Clutter Characterization at X-band.

Degree: MS, Electrical and Computer Engineering, 2015, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1440174330

► There is an increasing interest in operating radars in bistatic configuration, especially in military and stealth applications, to exploit the covert nature of bistatic receivers.… (more)

Subjects/Keywords: Electrical Engineering; Radar; Bistatic; Clutter

…10 Figure 2: Typical bistatic radar operation and geometry… …referred to as multistatic radar, can be modeled as a series of bistatic channels [5]… …and used in the Daventry experiments was in fact a passive bistatic radar. Despite being… …less common than monostatic radar systems, bistatic systems can offer certain advantages… …limited. Therefore there is a great deal of interest in understanding bistatic radar clutter to…

11 more images…

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APA (6^th Edition):

Mohan, A. (2015). Bistatic Radar Land Clutter Characterization at X-band. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1440174330

Chicago Manual of Style (16^th Edition):

Mohan, Abishek. “Bistatic Radar Land Clutter Characterization at X-band.” 2015. Masters Thesis, The Ohio State University. Accessed January 18, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1440174330.

MLA Handbook (7^th Edition):

Mohan, Abishek. “Bistatic Radar Land Clutter Characterization at X-band.” 2015. Web. 18 Jan 2021.

Vancouver:

Mohan A. Bistatic Radar Land Clutter Characterization at X-band. [Internet] [Masters thesis]. The Ohio State University; 2015. [cited 2021 Jan 18]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1440174330.

Council of Science Editors:

Mohan A. Bistatic Radar Land Clutter Characterization at X-band. [Masters Thesis]. The Ohio State University; 2015. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1440174330

The Ohio State University

17. Rigling, Brian D. Signal processing strategies for bistatic synthetic aperture radar.

Degree: PhD, Electrical Engineering, 2003, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1052835606

► Recent developments in unmanned aerial vehicle (UAV) technology are spurring new interest in the fields of bistatic and multistatic synthetic aperture radar (SAR). This… (more)

Subjects/Keywords: bistatic SAR; scatterer; monostatic; receiver; Radar

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APA (6^th Edition):

Rigling, B. D. (2003). Signal processing strategies for bistatic synthetic aperture radar. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1052835606

Chicago Manual of Style (16^th Edition):

Rigling, Brian D. “Signal processing strategies for bistatic synthetic aperture radar.” 2003. Doctoral Dissertation, The Ohio State University. Accessed January 18, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1052835606.

MLA Handbook (7^th Edition):

Rigling, Brian D. “Signal processing strategies for bistatic synthetic aperture radar.” 2003. Web. 18 Jan 2021.

Vancouver:

Rigling BD. Signal processing strategies for bistatic synthetic aperture radar. [Internet] [Doctoral dissertation]. The Ohio State University; 2003. [cited 2021 Jan 18]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1052835606.

Council of Science Editors:

Rigling BD. Signal processing strategies for bistatic synthetic aperture radar. [Doctoral Dissertation]. The Ohio State University; 2003. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1052835606

18. Gassier, Ghislain. Contributions au Radar Passif sur Signaux d'Opportunité de Type Télévision Numérique Terrestre : Contribution to the Passive Radar using DVB-T Signals of Opportunity.

Degree: Docteur es, Automatique et traitement du signal, 2016, Toulon

URL: http://www.theses.fr/2016TOUL0007

►

L’étude traite de la détection de cibles mobiles dans un contexte de radar passif bistatique utilisant les émetteursde télévision numérique TNT (DVB-T) comme émetteurs d’opportunité.… (more)

▼

L’étude traite de la détection de cibles mobiles dans un contexte de radar passif bistatique utilisant les émetteursde télévision numérique TNT (DVB-T) comme émetteurs d’opportunité. Outre leur présence généralisée sur leterritoire, l’intérêt de ces émissions réside dans leur relative largeur de bande permettant une bonne précisiond’estimation. Le principal inconvénient de ce type d’approche réside dans l’éblouissement par le signal en trajetdirect, des échos de très faible intensité des cibles d’intérêt. Après un rappel du principe du radar bistatique etde la norme OFDM utilisée par les signaux TNT, une première étude donne une construction originale du signalde référence dans le cas multi-capteurs : le signal de référence est construit par un traitement d’antenne de typeCAPON où le balayage des paramètres optimaux est remplacé par la connaissance de signaux pilotes inséré dansles symboles OFDM. Ensuite le rapport se focalise sur l’estimation d’un filtre de canal multitrajet à partir dela connaissance de la modulation OFDM utilisée. Ce filtre, d’abord étudié comme réjecteur de fouillis originalavant détection par la fonction d’ambiguïté, donne des résultats semblables aux méthodes classiques de réjectionde fouillis standard. Étendu à toutes les fréquences Doppler, son module au carré est utilisé comme un nouveaudétecteur présentant un très faible niveau de clutter, surpassant ainsi la fonction d’ambiguïté. Une interprétationen terme de traitement d’antennes du nouveau détecteur ouvre la voie à des variantes haute-résolution de celui-ci.La validité du nouveau détecteur est illustrée par des résultats sur données réelles.

The study focuses on moving target detection from passive bistatic radar with DVB-T transmitters used asopportunity transmitters. In addition to their widespread geographical coverage, they allow a good estimationaccuracy due to their quite large bandpass. Nevertheless the continuous powerful direct path masks the verylow intensity echoes of targets of interest. The passive bistatic radar principle and the CP-OFDM standardused by DVB-T are briefly reminded, then, a new first study of reference signal retrieving in multiple sensorsconfiguration is given : the reference signal is built using a Capon receptor where the parameters scan is replacedby the knowledge of pilot signals inserted in the OFDM symbols. Next, the report addresses the multipath channelestimate by using the OFDM signal structure. This channel is firstly studied for clutter rejection before detectionfrom the cross ambiguity function (CAF). We obtain similar results than those of the classical rejection methods.This channel is extended to the whole Doppler shift, and its squared modulus acts as a new low clutter detectorthat outperforms classical CAF. A virtual beamforming interpretation of the channel estimation opens a new pathtowards high resolution array processing. Results given on real data illustrate the validity of this new channeldetector (CHAD).

Advisors/Committee Members: Jauffret, Claude (thesis director).

Subjects/Keywords: Radar passif bistatique; Signaux d'opportunité; Fonction d'ambiguïté; Fouillis; Passive bistatic radar; Opportunity Signals; Cross ambiguity function; Clutter

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APA (6^th Edition):

Gassier, G. (2016). Contributions au Radar Passif sur Signaux d'Opportunité de Type Télévision Numérique Terrestre : Contribution to the Passive Radar using DVB-T Signals of Opportunity. (Doctoral Dissertation). Toulon. Retrieved from http://www.theses.fr/2016TOUL0007

Chicago Manual of Style (16^th Edition):

Gassier, Ghislain. “Contributions au Radar Passif sur Signaux d'Opportunité de Type Télévision Numérique Terrestre : Contribution to the Passive Radar using DVB-T Signals of Opportunity.” 2016. Doctoral Dissertation, Toulon. Accessed January 18, 2021. http://www.theses.fr/2016TOUL0007.

MLA Handbook (7^th Edition):

Gassier, Ghislain. “Contributions au Radar Passif sur Signaux d'Opportunité de Type Télévision Numérique Terrestre : Contribution to the Passive Radar using DVB-T Signals of Opportunity.” 2016. Web. 18 Jan 2021.

Vancouver:

Gassier G. Contributions au Radar Passif sur Signaux d'Opportunité de Type Télévision Numérique Terrestre : Contribution to the Passive Radar using DVB-T Signals of Opportunity. [Internet] [Doctoral dissertation]. Toulon; 2016. [cited 2021 Jan 18]. Available from: http://www.theses.fr/2016TOUL0007.

Council of Science Editors:

Gassier G. Contributions au Radar Passif sur Signaux d'Opportunité de Type Télévision Numérique Terrestre : Contribution to the Passive Radar using DVB-T Signals of Opportunity. [Doctoral Dissertation]. Toulon; 2016. Available from: http://www.theses.fr/2016TOUL0007

Brno University of Technology

19. Šulc, Martin. Rozpoznávání pohybujícího se objektu pomocí MIMO radaru: Localization of a Moving Target using a MIMO Radar System.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/26851

► The aim of this thesis is to estimate parameters of the moving target using different radar configurations. First the Doppler effect and the time delay… (more)

Subjects/Keywords: bistatický; Doppler; efekt; funkce; MIMO; monostatický; neurčitosti; radar; zpoždění; ambiguity; bistatic; function; delay; Doppler; effect; MIMO; monostatic; radar

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APA (6^th Edition):

Šulc, M. (2019). Rozpoznávání pohybujícího se objektu pomocí MIMO radaru: Localization of a Moving Target using a MIMO Radar System. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/26851

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):

Šulc, Martin. “Rozpoznávání pohybujícího se objektu pomocí MIMO radaru: Localization of a Moving Target using a MIMO Radar System.” 2019. Thesis, Brno University of Technology. Accessed January 18, 2021. http://hdl.handle.net/11012/26851.

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

MLA Handbook (7^th Edition):

Šulc, Martin. “Rozpoznávání pohybujícího se objektu pomocí MIMO radaru: Localization of a Moving Target using a MIMO Radar System.” 2019. Web. 18 Jan 2021.

Vancouver:

Šulc M. Rozpoznávání pohybujícího se objektu pomocí MIMO radaru: Localization of a Moving Target using a MIMO Radar System. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11012/26851.

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

Council of Science Editors:

Šulc M. Rozpoznávání pohybujícího se objektu pomocí MIMO radaru: Localization of a Moving Target using a MIMO Radar System. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/26851

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

Georgia Tech

20. Joshi, Sujay S. Multi-Target Tracking via Nonlinear Least Squares Using Doppler Measurements from a Passive Radar System.

Degree: MS, Electrical and Computer Engineering, 2007, Georgia Tech

URL: http://hdl.handle.net/1853/14576

► A passive radar systems opportunistic ability to exploit ambient radio signal reflections makes it ideal for covert target tracking. This strategy, referred to as passive… (more)

▼ A passive radar systems opportunistic ability to exploit ambient radio signal reflections makes it ideal for covert target tracking. This strategy, referred to as passive covert radar (PCR) or passive coherent location (PCL), typically exploits FM radio or television signals from powerful local transmitters. In addition to covertness, the absence of a dedicated transmitter helps reduce costs and overall system complexity. While a variety of measurements can be used to estimate a targets position and velocity, such as time difference of arrival (TDOA) and direction of arrival (DOA), this thesis focuses on using only Doppler shift measurements to estimate a targets state. The work presented in this thesis examines the use of Doppler shift measurements from multiple receivers to solve the target tracking and association problem. A nonlinear least squares error (NLSE) estimation technique, called the Levenberg-Marquardt (L-M) algorithm, is used to determine a targets state (position, velocity) from these Doppler shift measurements. More than one target state can potentially produce identical Doppler shift profiles. In a single-receiver, single-target scenario, it is shown that three additional ghost targets caused by symmetry produce the same Doppler shift response. These ghosts may make state estimation impossible if receive antennas are not physically positioned to block out ghost targets. While the NLSE technique tends to give an accurate solution in one quadrant, three other solutions will symmetrically exist in each of the remaining three quadrants. The addition of either another receiver or another measurement (such as DOA) is needed to break this quadrant ambiguity. This thesis considers adding multiple receivers to accurately associate and track multiple targets. Two target association methods (sequential and simultaneous) are developed, and their computational requirements and accuracy are compared. A grid-aided L-M search technique is investigated in an attempt to provide a better initial target state guess to these association and tracking algorithms. The analysis and simulation results suggest it is feasible to perform multi-target association and tracking using Doppler shift as the sole measurement. Both of the proposed methods gave optimal target association and converged to reasonably accurate state estimates in most of the Monte Carlo runs. Advisors/Committee Members: Dr. Aaron Lanterman (Committee Chair), Dr. Doug Williams (Committee Member), Dr. Phil West (Committee Member).

Subjects/Keywords: Levenberg-Marquardt; Doppler; PCR; Bistatic radar; LSE; Radio frequency; Target acquisition; Bistatic radar; Doppler radar

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APA (6^th Edition):

Joshi, S. S. (2007). Multi-Target Tracking via Nonlinear Least Squares Using Doppler Measurements from a Passive Radar System. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/14576

Chicago Manual of Style (16^th Edition):

Joshi, Sujay S. “Multi-Target Tracking via Nonlinear Least Squares Using Doppler Measurements from a Passive Radar System.” 2007. Masters Thesis, Georgia Tech. Accessed January 18, 2021. http://hdl.handle.net/1853/14576.

MLA Handbook (7^th Edition):

Joshi, Sujay S. “Multi-Target Tracking via Nonlinear Least Squares Using Doppler Measurements from a Passive Radar System.” 2007. Web. 18 Jan 2021.

Vancouver:

Joshi SS. Multi-Target Tracking via Nonlinear Least Squares Using Doppler Measurements from a Passive Radar System. [Internet] [Masters thesis]. Georgia Tech; 2007. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/1853/14576.

Council of Science Editors:

Joshi SS. Multi-Target Tracking via Nonlinear Least Squares Using Doppler Measurements from a Passive Radar System. [Masters Thesis]. Georgia Tech; 2007. Available from: http://hdl.handle.net/1853/14576

21. Pui, Chow Yii. Large scale antenna array for GPS bistatic radar.

Degree: 2017, University of Adelaide

URL: http://hdl.handle.net/2440/111432

► GPS passive bistatic radar uses signals transmitted by navigation satellites to perform target detection. This research aims to develop a ground-based receiver that detects the… (more)

▼ GPS passive bistatic radar uses signals transmitted by navigation satellites to perform target detection. This research aims to develop a ground-based receiver that detects the reflected GPS signals from air targets. The main challenge for GPS bistatic radar is the difficulty in detecting the extremely weak power GPS signal reflections from a target since GPS satellites are located at very high altitudes and transmit signals at relatively low power levels. The research in this thesis investigates the minimum power of the reflected GPS signal that can be reliably detected by applying several techniques for enhancing the receiver detection performance. The proposed techniques for GPS bistatic radar target detection model include: using a large scale antenna array at the receiver, applying long coherent integration times for the captured data and non-coherently summing the power returns of targets from multiple satellites or receivers. This detection model requires the radar system to incorporate the signal information from a large number of receiving channels and non-cooperative transmitters to perform air target detection. This research also incorporates additional techniques at the pre-detection stage that are essential for the target detection model. Among these techniques include: direct-path GPS signals acquisition that obtains the Doppler frequency component and C/A code pattern from each satellite, array calibration that realigns the inter-element phase errors and orientation of phased-array receiver using the GPS system, and direct-path signal interference cancellation. The GPS bistatic radar target detection performance was initially investigated using the results produced by computer simulations. Then, a prototype phased-array GPS bistatic radar receiver was built to capture target reflections from an aircraft and investigate the detection performance of the system experimentally. The system was able to successfully detect and locate the position of a nearby aircraft, which demonstrates that the techniques introduced for GPS bistatic radar in this thesis do work in practice. The experimental results also provide a benchmark that can be used to estimate the scale of the receiver required for detecting objects at a greater distance. Advisors/Committee Members: Ng, Brian Wai-Him (advisor), Trinkle, Matthew (advisor), Gray, Douglas Andrew (advisor), School of Electrical and Electronic Engineering (school).

Subjects/Keywords: passive bistatic radar; GPS; antenna array

…person who introduced me to study the topic of GPS bistatic radar. I had learnt a lot of skills… …for designing, testing and building the experimental GPS bistatic radar receiver for my… …my research outcome at several passive bistatic radar workshops. These workshops further… …stimulate my interest in the development work of passive bistatic radar. I had also learnt some… …Illustration of monostatic radar vs. bistatic radar…

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

APA (6^th Edition):

Pui, C. Y. (2017). Large scale antenna array for GPS bistatic radar. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/111432

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):

Pui, Chow Yii. “Large scale antenna array for GPS bistatic radar.” 2017. Thesis, University of Adelaide. Accessed January 18, 2021. http://hdl.handle.net/2440/111432.

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

MLA Handbook (7^th Edition):

Pui, Chow Yii. “Large scale antenna array for GPS bistatic radar.” 2017. Web. 18 Jan 2021.

Vancouver:

Pui CY. Large scale antenna array for GPS bistatic radar. [Internet] [Thesis]. University of Adelaide; 2017. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/2440/111432.

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

Council of Science Editors:

Pui CY. Large scale antenna array for GPS bistatic radar. [Thesis]. University of Adelaide; 2017. Available from: http://hdl.handle.net/2440/111432

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

Purdue University

22. Ashman, Benjamin W. Incorporation of GNSS multipath to improve autonomous rendezvous, docking and proximity operations in space.

Degree: PhD, Electrical and Computer Engineering, 2016, Purdue University

URL: https://docs.lib.purdue.edu/open_access_dissertations/617

► Automated rendezvous and docking (AR&D;) operations are important for many future space missions, such as the resupply of space stations, repair and refueling of… (more)

▼ Automated rendezvous and docking (AR&D;) operations are important for many future space missions, such as the resupply of space stations, repair and refueling of large satellites, and active removal of orbital debris. These operations depend critically on accurate, real-time knowledge of the relative position and velocity between two space vehicles. Unfortunately, Global Navigation Satellite System (GNSS) capabilities remain severely limited in close proximity to large space structures due to significant multipath effects and signal blockage. Although GNSS is used for the initial stages of approach, other instruments such as laser, radar and vision-based systems, are required to augment GNSS during AR&D; over the last few hundred meters. This dissertation evaluates the feasibility of GNSS multipath-based relative space navigation. Methods for separating and interpreting reflected signals are demonstrated using GNSS data collected during Hubble Servicing Mission 4 (HSM4), a model of the mission geometry, electromagnetic (EM) ray tracing, and a custom GNSS software receiver. EM ray tracing is used to show that a number of signals sufficient for ranging are reflected by the Hubble Space Telescope (HST) during HSM4, and the properties of these reflections are used to generate simulated GNSS data. The impact of reflected signals on code correlation shape, code tracking error, and pseudorange measurement is demonstrated using the simulated and experimental data. Relative navigation is demonstrated using simulated reflected signal measurements and the dependence of relative navigation on the reflecting object’s scattering properties is illustrated. From the tracking of data from two oppositely polarized antennas, both simulated and experimental, it is determined that multipath measurements are limited by system properties such as antenna polarization quality and front end bandwidth. Design considerations involved in optimizing a receiver to measure reflected signals are discussed. Advisors/Committee Members: James L. Garrison, Mark R. Bell, James L. Garrison, James V. Krogmeier, Luke M. Winternitz.

Subjects/Keywords: Applied sciences; Bistatic radar; GNSS; Multipath; Relative navigation; Satellite navigation; Aerospace Engineering; Electrical and Computer Engineering

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

APA (6^th Edition):

Ashman, B. W. (2016). Incorporation of GNSS multipath to improve autonomous rendezvous, docking and proximity operations in space. (Doctoral Dissertation). Purdue University. Retrieved from https://docs.lib.purdue.edu/open_access_dissertations/617

Chicago Manual of Style (16^th Edition):

Ashman, Benjamin W. “Incorporation of GNSS multipath to improve autonomous rendezvous, docking and proximity operations in space.” 2016. Doctoral Dissertation, Purdue University. Accessed January 18, 2021. https://docs.lib.purdue.edu/open_access_dissertations/617.

MLA Handbook (7^th Edition):

Ashman, Benjamin W. “Incorporation of GNSS multipath to improve autonomous rendezvous, docking and proximity operations in space.” 2016. Web. 18 Jan 2021.

Vancouver:

Ashman BW. Incorporation of GNSS multipath to improve autonomous rendezvous, docking and proximity operations in space. [Internet] [Doctoral dissertation]. Purdue University; 2016. [cited 2021 Jan 18]. Available from: https://docs.lib.purdue.edu/open_access_dissertations/617.

Council of Science Editors:

Ashman BW. Incorporation of GNSS multipath to improve autonomous rendezvous, docking and proximity operations in space. [Doctoral Dissertation]. Purdue University; 2016. Available from: https://docs.lib.purdue.edu/open_access_dissertations/617

NSYSU

23. Chou , You-Rung. Chest-Worn Health Monitor Based on a Bistatic Self-Injection-Locked Radar.

Degree: Master, Electrical Engineering, 2015, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0725115-221152

► This thesis presents wearable health monitors that are based on continuous-wave Doppler radar technology. To achieve low complexity, low power consumption and simultaneous wireless transmission… (more)

Subjects/Keywords: wireless transmission; cardiopulmonary sensor; Wearable health monitor; acceleration; time-frequency spectrogram; self-injection-locked (SIL) radar; bistatic; pedometer; Doppler continuous-wave radar

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

APA (6^th Edition):

Chou , Y. (2015). Chest-Worn Health Monitor Based on a Bistatic Self-Injection-Locked Radar. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0725115-221152

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):

Chou , You-Rung. “Chest-Worn Health Monitor Based on a Bistatic Self-Injection-Locked Radar.” 2015. Thesis, NSYSU. Accessed January 18, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0725115-221152.

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

MLA Handbook (7^th Edition):

Chou , You-Rung. “Chest-Worn Health Monitor Based on a Bistatic Self-Injection-Locked Radar.” 2015. Web. 18 Jan 2021.

Vancouver:

Chou Y. Chest-Worn Health Monitor Based on a Bistatic Self-Injection-Locked Radar. [Internet] [Thesis]. NSYSU; 2015. [cited 2021 Jan 18]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0725115-221152.

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

Council of Science Editors:

Chou Y. Chest-Worn Health Monitor Based on a Bistatic Self-Injection-Locked Radar. [Thesis]. NSYSU; 2015. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0725115-221152

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

24. Liu, Yuan. Analyse de sensibilité et estimation de l'humidité du sol à partir de données radar : On sensitivity analysis and estimation of soil moisture from radar responses.

Degree: Docteur es, Télédétection et imagerie physique, 2016, Université de Strasbourg

URL: http://www.theses.fr/2016STRAD032

►

L’étude de la diffusion des ondes électromagnétiques par une surface rugueuse aléatoire est de première importance dans de nombreuses disciplines et conduit à diverses applications… (more)

▼

L’étude de la diffusion des ondes électromagnétiques par une surface rugueuse aléatoire est de première importance dans de nombreuses disciplines et conduit à diverses applications notamment pour le traitement des surfaces par télédétection. En connaissant les modes de rétrodiffusion, on peut détecter la présence de la rugosité aléatoire indésirable de la surface de réflection telle que le réflecteur d'antenne et par conséquent trouver un moyen de corriger ou compenser les erreurs de phase. Cette thèse porte sur l’obtention de l'humidité du sol de surface à partir de mesures radar. La description de la surface rugueuse de façon aléatoire est présentée, suivie par les interactions d'ondes électromagnétiques avec les média. En particulier, un modèle d'équation intégrale avancé (AIEM) est introduit. La validité du modèle AIEM, qui est adopté comme modèle de travail, se fait par une large comparaison avec des simulations numériques et des données expérimentales. On analyse également les caractéristiques des configurations radar bistatique et on étudie la sensibilité de la diffusion bistatique à l'humidité du sol et à la rugosité de surface et, dans le même temps, le cadre de la détermination de l'humidité du sol à partir de mesures radar utilisant un réseau de neurones à base de filtres de Kalman récurrents est présenté. La formation du réseau et l'inversion des données sont décrits.

Electromagnetic waves scattering from a randomly rough surface is of palpable importance in many fields of disciplines and bears itself in various applications spanned from surface treatment to remote sensing of terrain and sea. By knowing the backscattering patterns, one may detect the presence of the undesired random roughness of the reflection surface such as antenna reflector and accordingly devise a means to correct or compensate the phase errors. Therefore, it has been both theoretically and practically necessary to study the electromagnetic wave scattering from the random surfaces. This dissertation focuses on the retrieval of surface soil moisture from radar measurements. The description of the randomly rough surface is presented, followed by the electromagnetic wave interactions with the media. In particular, an advanced integral equation model (AIEM) is introduced. The validity of the AIEM model, which is adopted as a working model, is made by extensive comparison with numerical simulations and experimental data. Also analyzes the characteristics of the bistatic radar configurations and dissects the sensitivity of bistatic scattering to soil moisture and surface roughness of soil surfaces. Meanwhile presents a framework of soil moisture retrieval from radar measurements using a recurrent Kalman filter-based neural network. The network training and data inversion are described in detail.

Advisors/Committee Members: Li, Zhao-Liang (thesis director).

Subjects/Keywords: Humidité du sol; AIEM; Diffusion bistatique; Analyse de sensibilité; ALOS-2; Données radar; Micro-ondes; Soil moisture; AIEM; Bistatic scattering; Sensitivity analysis; ALOS-2; Radar data; Microwave; 621.38

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APA (6^th Edition):

Liu, Y. (2016). Analyse de sensibilité et estimation de l'humidité du sol à partir de données radar : On sensitivity analysis and estimation of soil moisture from radar responses. (Doctoral Dissertation). Université de Strasbourg. Retrieved from http://www.theses.fr/2016STRAD032

Chicago Manual of Style (16^th Edition):

Liu, Yuan. “Analyse de sensibilité et estimation de l'humidité du sol à partir de données radar : On sensitivity analysis and estimation of soil moisture from radar responses.” 2016. Doctoral Dissertation, Université de Strasbourg. Accessed January 18, 2021. http://www.theses.fr/2016STRAD032.

MLA Handbook (7^th Edition):

Liu, Yuan. “Analyse de sensibilité et estimation de l'humidité du sol à partir de données radar : On sensitivity analysis and estimation of soil moisture from radar responses.” 2016. Web. 18 Jan 2021.

Vancouver:

Liu Y. Analyse de sensibilité et estimation de l'humidité du sol à partir de données radar : On sensitivity analysis and estimation of soil moisture from radar responses. [Internet] [Doctoral dissertation]. Université de Strasbourg; 2016. [cited 2021 Jan 18]. Available from: http://www.theses.fr/2016STRAD032.

Council of Science Editors:

Liu Y. Analyse de sensibilité et estimation de l'humidité du sol à partir de données radar : On sensitivity analysis and estimation of soil moisture from radar responses. [Doctoral Dissertation]. Université de Strasbourg; 2016. Available from: http://www.theses.fr/2016STRAD032

25. Elhag, Omer. Fast Back Projection Algorithm for Bi-Static SAR Using Polar Coordinates.

Degree: 2012, , School of Engineering

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5653

► Synthetic Aperture Radar (SAR) plays a significant role in geophysical studies and remote sensing applications. SAR inherits the benefits of imaging RADAR over the… (more)

Subjects/Keywords: Bi-static SAR; Fast Backprojection; Global Backprojection; monostatic SAR; SAR image processing; Synthetic Aperture Radar; time domain algorithms; Ultra Wide-beam; UWB Bistatic SAR.

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APA (6^th Edition):

Elhag, O. (2012). Fast Back Projection Algorithm for Bi-Static SAR Using Polar Coordinates. (Thesis). , School of Engineering. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5653

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):

Elhag, Omer. “Fast Back Projection Algorithm for Bi-Static SAR Using Polar Coordinates.” 2012. Thesis, , School of Engineering. Accessed January 18, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5653.

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

MLA Handbook (7^th Edition):

Elhag, Omer. “Fast Back Projection Algorithm for Bi-Static SAR Using Polar Coordinates.” 2012. Web. 18 Jan 2021.

Vancouver:

Elhag O. Fast Back Projection Algorithm for Bi-Static SAR Using Polar Coordinates. [Internet] [Thesis]. , School of Engineering; 2012. [cited 2021 Jan 18]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5653.

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

Council of Science Editors:

Elhag O. Fast Back Projection Algorithm for Bi-Static SAR Using Polar Coordinates. [Thesis]. , School of Engineering; 2012. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5653

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

Linköping University

26. Andersson, Anders. Passive Aircraft Altimetry using GPS as a Bistatic Radar : A simulation model.

Degree: Electrical Engineering, 2003, Linköping University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1958

► A common way to measure height in aerial vehicles is to use a radar height altimeter (RHM). Since the RHM transmits radar pulses that… (more)

Subjects/Keywords: Datorteknik; Bistatic radar; GPS; altimeter; passive; reflectivity; scattering; altimetry; Datorteknik; Computer Engineering; Datorteknik

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APA (6^th Edition):

Andersson, A. (2003). Passive Aircraft Altimetry using GPS as a Bistatic Radar : A simulation model. (Thesis). Linköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1958

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):

Andersson, Anders. “Passive Aircraft Altimetry using GPS as a Bistatic Radar : A simulation model.” 2003. Thesis, Linköping University. Accessed January 18, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1958.

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

MLA Handbook (7^th Edition):

Andersson, Anders. “Passive Aircraft Altimetry using GPS as a Bistatic Radar : A simulation model.” 2003. Web. 18 Jan 2021.

Vancouver:

Andersson A. Passive Aircraft Altimetry using GPS as a Bistatic Radar : A simulation model. [Internet] [Thesis]. Linköping University; 2003. [cited 2021 Jan 18]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1958.

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

Council of Science Editors:

Andersson A. Passive Aircraft Altimetry using GPS as a Bistatic Radar : A simulation model. [Thesis]. Linköping University; 2003. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1958

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

27. Pisane, Jonathan. Automatic target recognition using passive bistatic radar signals. : Reconnaissance automatique de cibles par utilisation de signaux de radars passifs bistatiques.

Degree: Docteur es, Traitement du Signal (STIC), 2013, Supélec; Université de Liège

URL: http://www.theses.fr/2013SUPL0009

► Dans cette thèse, nous présentons la conception, le développement et le test de trois systèmes de reconnaissance automatique de cibles (ATR) visant à reconnaître des… (more)

▼ Dans cette thèse, nous présentons la conception, le développement et le test de trois systèmes de reconnaissance automatique de cibles (ATR) visant à reconnaître des avions non-coopératifs, c’est-à-dire des avions ne fournissant par leur identité, en utilisant des signaux de radars passifs bistatiques. Les radars passifs bistatiques utilisent un ou plusieurs émetteurs d’opportunité (déjà présents sur le terrain), avec des fréquences allant jusqu’à 1 GHz pour les émetteurs considérés ici, et un ou plusieurs récepteurs déployés par le gestionnaire du système et non-colocalisés avec les émetteurs. Les seules informations utilisées sont les signaux réfléchis sur les avions et les signaux directement reçus qui sont tous les deux collectés par le récepteur, quelques informations concernant l’émetteur, et la configuration géométrique du radar bistatique.Les trois systèmes ATR que nous avons construits utilisent respectivement les images radar, les surfaces équivalentes radar (SER) complexes bistatiques et les SER réelles bistatiques. Nous utilisons des données acquises soit sur des modèles d’avions placés en chambre anéchoique à l’ONERA, soit sur des avions réels en utilisant un banc d’essai bistatique consistant en un émetteur VOR et un récepteur basé sur la radio-logicielle (SDR), et que nous avons déployé aux alentours de l’aéroport d’Orly. Nous décrivons d’abord la phénoménologie radar pertinente pour notre problème ainsi que les fondements mathématiques pour la dérivation de la SER bistatique d’un objet, et pour la construction d’images radar d’un objet.Nous utilisons deux méthodes pour la classification de cibles en classes prédéfinies : les arbres extrêmement aléatoires (extra-trees) et les méthodes de sous-espaces. Une caractéristique-clé de notre approche est que nous divisons le problème de reconnaissance global en un ensemble de sous-problèmes par décomposition de l’espace des paramètres (fréquence, polarisation, angle d’aspect et angle bistatique) en régions. Nous construisons un classificateur par région.Nous validons en premier lieu la méthode des extra-trees sur la base de données MSTAR, composée d’images radar de véhicules terrestres. Ensuite, nous testons cette méthode sur des images radar d’avions que nous avons construites à partir des données acquises en chambre anéchoique. Nous obtenons un pourcentage de classification allant jusqu’à 99%. Nous testons ensuite la méthode de sous-espaces sur les SER bistatiques (complexes et réelles) des avions que nous avons extraits des données de chambre anéchoique. Nous obtenons un pourcentage de classification allant jusqu’à 98%, avec des variations suivant la fréquence, la polarisation, l’angle d’aspect, l’angle bistatique et le nombre de paires émetteur-récepteur utilisées. Nous testons enfin la méthode de sous-espaces sur les SER bistatiques (réelles) extraites des signaux acquis par le banc d’essai déployé à Orly. Nous obtenons une probabilité de classification de 82%, avec des variations suivant l’angle d’aspect et l’angle bistatique. On a donc démontré dans… Advisors/Committee Members: Lesturgie, Marc (thesis director), Verly, Jacques G. (thesis director).

Subjects/Keywords: Reconnaissance automatique des cibles; Reconnaissance de cibles non coopératives; Classification; Arbres extrêmement aléatoires; Méthodes des sous-espaces; Radar passif bistatique; Surface équivalente radar complexe; Radio-logicielle; Automatic target recognition (ATR); Non-cooperative target recognition; Classification; Extremely randomized trees(extra-trees); Subspace methods; Passive bistatic radar; Complex radar cross-section; Software-defined radio (SDR); 378.242

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

APA (6^th Edition):

Pisane, J. (2013). Automatic target recognition using passive bistatic radar signals. : Reconnaissance automatique de cibles par utilisation de signaux de radars passifs bistatiques. (Doctoral Dissertation). Supélec; Université de Liège. Retrieved from http://www.theses.fr/2013SUPL0009

Chicago Manual of Style (16^th Edition):

Pisane, Jonathan. “Automatic target recognition using passive bistatic radar signals. : Reconnaissance automatique de cibles par utilisation de signaux de radars passifs bistatiques.” 2013. Doctoral Dissertation, Supélec; Université de Liège. Accessed January 18, 2021. http://www.theses.fr/2013SUPL0009.

MLA Handbook (7^th Edition):

Pisane, Jonathan. “Automatic target recognition using passive bistatic radar signals. : Reconnaissance automatique de cibles par utilisation de signaux de radars passifs bistatiques.” 2013. Web. 18 Jan 2021.

Vancouver:

Pisane J. Automatic target recognition using passive bistatic radar signals. : Reconnaissance automatique de cibles par utilisation de signaux de radars passifs bistatiques. [Internet] [Doctoral dissertation]. Supélec; Université de Liège; 2013. [cited 2021 Jan 18]. Available from: http://www.theses.fr/2013SUPL0009.

Council of Science Editors:

Pisane J. Automatic target recognition using passive bistatic radar signals. : Reconnaissance automatique de cibles par utilisation de signaux de radars passifs bistatiques. [Doctoral Dissertation]. Supélec; Université de Liège; 2013. Available from: http://www.theses.fr/2013SUPL0009

28. MA CHANGZHENG. Multiple input multiple output radar three dimensional imaging technique.

Degree: 2014, National University of Singapore

URL: http://scholarbank.nus.edu.sg/handle/10635/118237

Subjects/Keywords: MIMO Radar; 3D Imaging; ISAR; Sparse Signal Recovery; L1 L0 Norms Homotopy; BiStatic Radar

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

APA (6^th Edition):

CHANGZHENG, M. (2014). Multiple input multiple output radar three dimensional imaging technique. (Thesis). National University of Singapore. Retrieved from http://scholarbank.nus.edu.sg/handle/10635/118237

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):

CHANGZHENG, MA. “Multiple input multiple output radar three dimensional imaging technique.” 2014. Thesis, National University of Singapore. Accessed January 18, 2021. http://scholarbank.nus.edu.sg/handle/10635/118237.

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

MLA Handbook (7^th Edition):

CHANGZHENG, MA. “Multiple input multiple output radar three dimensional imaging technique.” 2014. Web. 18 Jan 2021.

Vancouver:

CHANGZHENG M. Multiple input multiple output radar three dimensional imaging technique. [Internet] [Thesis]. National University of Singapore; 2014. [cited 2021 Jan 18]. Available from: http://scholarbank.nus.edu.sg/handle/10635/118237.

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

Council of Science Editors:

CHANGZHENG M. Multiple input multiple output radar three dimensional imaging technique. [Thesis]. National University of Singapore; 2014. Available from: http://scholarbank.nus.edu.sg/handle/10635/118237

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

29. Othman, Mohamed Abou Bakr. Detection of nondeterministic linear chirps in non-gaussian noise background.

Degree: PhD, Electrical & Computer Engineering, 2014, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3290/rec/665

► Chirp signals arise in many applications of digital signal processing. In this dissertation, we address the problem of detection of chirp signals that are encountered… (more)

▼ Chirp signals arise in many applications of digital signal processing. In this dissertation, we address the problem of detection of chirp signals that are encountered in a bistatic radar which we are developing for remote sensing of cosmic ray induced air showers. The receivedechoes from the air showers are characterized by their large Doppler shift (several tens of MHz), and very short sweep period (~ 10 ^s). This makes our astrophysical problem a challenging one, since a very short sweep period is equivalent to a very low energy chirpsignal. Furthermore, the related parameters of the received echoes are nondeterministic since they are tied to the physical parameters of the air showers that are stochastic in nature. In addition, our problem is characterized by the rarity of the expected chirp-echoesto be received, few events per week, and thus, background noise reception is the case most of the time. The primary focus of this research is to address these challenges and find an optimized detection approach under the existing receiver environment which containsnon-Gaussian noise and is characterized by low signal-to-noise ratio (SNR). Matched filters are commonly used in radar systems when the chirp signal is known. Inour first method, we revisit this context and use a matched filter as a basis of building a rake-like receiver that consists of a set of filters matched to quantized chirp rates, logarithmically distributed within the chirp-rate interval of interest. We examine the detection capability of the proposed structure through extensive theoretical and numerical analysis. Theoreticalanalysis and simulation results prove that the proposed detector has high detection capability for a range of chirp slopes in a low SNR environment.A major source of false-alarms was found to be due to sudden noise spikes that cover wide frequency bands. These transient signals have high amplitudes and occur at random time instants. This leads to erroneous detection decision. We study the influence of amplitudelimiting the noisy signal on reducing the received false-alarms and enhancing the detection performance of the proposed rake-like receiver.In our second method, we use Hough transform (HT), which is widely used in the area of image processing for the purpose of finding parameterized patterns, as a basis of building a robust detection technique. We examine the detection capability of the proposed structure through theoretical and numerical analysis. Our results prove that the proposed detector has high detection capability for a range of chirp slopes in a low SNR environment.The introduced detection algorithms are implemented over a Virtex-5 FPGA. National Instruments modules are used as a high-performance custom hardware. Due to rarity of received echoes, we emulate the expected radar echoes to evaluate the system performance.The detection performance of the emulated echoes is examined using the implemented receiver at the field. Also, we compare the performance of both detectors.

Subjects/Keywords: Bistatic radar; Chirp signal; Detection; FPGA; Non-Gaussian noise; Signal processing

…25 4.1 Elements of the bistatic radar system… …74 F.2 Bistatic geometry of a radar sounding wave interrogating an EAS. R T and R r are… …approach based on bistatic radar technology [5]. This technique is promising and if… …is greatest in the forward scattering direction [6]. Thus, bistatic radar is… …member of TA R A collaboration, I participated in constructing the world’s first bistatic radar…

13 more images…

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

APA (6^th Edition):

Othman, M. A. B. (2014). Detection of nondeterministic linear chirps in non-gaussian noise background. (Doctoral Dissertation). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3290/rec/665

Chicago Manual of Style (16^th Edition):

Othman, Mohamed Abou Bakr. “Detection of nondeterministic linear chirps in non-gaussian noise background.” 2014. Doctoral Dissertation, University of Utah. Accessed January 18, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3290/rec/665.

MLA Handbook (7^th Edition):

Othman, Mohamed Abou Bakr. “Detection of nondeterministic linear chirps in non-gaussian noise background.” 2014. Web. 18 Jan 2021.

Vancouver:

Othman MAB. Detection of nondeterministic linear chirps in non-gaussian noise background. [Internet] [Doctoral dissertation]. University of Utah; 2014. [cited 2021 Jan 18]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3290/rec/665.

Council of Science Editors:

Othman MAB. Detection of nondeterministic linear chirps in non-gaussian noise background. [Doctoral Dissertation]. University of Utah; 2014. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3290/rec/665

Luleå University of Technology

30. Junered, Marcus. An advanced reconfigurable GNSS processing module.

Degree: 2005, Luleå University of Technology

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-49863

►

The U.S Global Positioning System (GPS) is a satellite based navigation system that provides worldwide coverage. Typical use of the system includes positioning and… (more)

▼

The U.S Global Positioning System (GPS) is a satellite based navigation system that provides worldwide coverage. Typical use of the system includes positioning and timing. However, it can be used for other applications such as GPS bistatic radar, which in turn can be used for altimetry by calculating the delay between the direct and the reflected signal. It can also be used as a passive system (no user transmitted Radio Frequency, RF, energy) for remote sensing. The basic principle for GPS bistatic radar is that by using two receivers, one for direct and one for ground reflected GPS signals, differential processing can be performed to extract more information than just the position. By analysing the shape and the relative power of the reflected signal, information about the reflection surface can be acquired. To perform this kind of science with GPS, normal receivers can not be used since they lack the flexibility and low-level output that is critical for this kind of processing. The receiver for the reflected signal requires many correlators, in order to see a wide time window, while a typical GPS receiver only has two correlators per channel. Having multiple correlators also gives other advantages, with a narrow spacing there is less tracking jitter and better correlation peak resolution. A larger number of Automatic Gain Control (AGC) bits, 4 or more, than what is typically used for position, one or two, is also good in order to increase resolution. If a sampling receiver is used, in other words a receiver that outputs Intermediate Frequency (IF) samples, very large data files are created during each experiment. Processing these files in software can be very time-consuming so there is a need for hardware acceleration. To implement a large number of correlators for an experimental real-time receiver or processing module there is only one option and that is Field Programmable Gate Array (FPGA) design. This design is based on the Wildcard II from Annapolis Microsystems, it is a PCMCIA card with a FPGA that connects to the PCI bus of the host computer and thus allows for communication between host and logic. The design is of a parallel nature and therefore provides a significant increase in performance compared to software processing.

Validerat; 20101217 (root)

Subjects/Keywords: Technology; GPS; GNSS; GPS Bistatic Radar; FPGA; PCMCIA; Correlators; VHDL; Digital Receiver Design; CDMA; Teknik

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

APA (6^th Edition):

Junered, M. (2005). An advanced reconfigurable GNSS processing module. (Thesis). Luleå University of Technology. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-49863

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):

Junered, Marcus. “An advanced reconfigurable GNSS processing module.” 2005. Thesis, Luleå University of Technology. Accessed January 18, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-49863.

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

MLA Handbook (7^th Edition):

Junered, Marcus. “An advanced reconfigurable GNSS processing module.” 2005. Web. 18 Jan 2021.

Vancouver:

Junered M. An advanced reconfigurable GNSS processing module. [Internet] [Thesis]. Luleå University of Technology; 2005. [cited 2021 Jan 18]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-49863.

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

Council of Science Editors:

Junered M. An advanced reconfigurable GNSS processing module. [Thesis]. Luleå University of Technology; 2005. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-49863

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

Open Access Theses and Dissertations