subject:( pt QPSK QUADRATURE PHASE SHIFT KEYING)

1. ANDY ALVAREZ ARELLANO. [en] TRANSMISSION AND RECEPTION OF DATA IN EHF.

Degree: 2017, Pontifical Catholic University of Rio de Janeiro

URL: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=32212

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[pt] Nos últimos anos, as bandas de frequências nas comunicações sem fio estão começando a saturar devido ao incremento do tráfego e o aumento dos… (more)

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[pt] Nos últimos anos, as bandas de frequências nas comunicações sem fio estão começando a saturar devido ao incremento do tráfego e o aumento dos usuários, é devido a isso que, é necessário estudar as bandas de frequências que não estão sendo utilizadas nas áreas das comunicações como a banda milimétrica e sub-milimétrica. A transmissão de dados na banda EHF o banda milimétrica constitui uma possível solução para conseguir transmitir maiores quantidades de informação a altas velocidades de transmissão aliviando as bandas de frequências atuais. Neste trabalho se estuda a transmissão de dados em frequências de 100, 200, 300 e 400 GHz, empregando a modulação Quadrature Phase-Shift Keying (QPSK) mediante uma arquitetura baseada no batimento de dois lasers, cujas frequências são combinadas em um Beam Splitter, para que a corrente resultante da soma dos campos elétricos dos dois lasers seja convertida em um sinal de alta frequência por meio de uma antena fotocondutora. O batimento dos dois lasers, com diferentes comprimentos de onda e com a mesma potência, ao interagir com uma antena fotocondutora dá como resultado uma frequência na ordem de Gigahertz. No experimento utilizaram-se dois tipos de diodos receptores, um de banda larga (menor que 4 GHz) e outro de banda estreita (menor que 1 MHz). As duas antenas foram testadas em diferentes distâncias e com diferentes frequências de portadora para verificar qual delas tinha o melhor desempenho na banda EHF para poder realizar a transmissão de dados.

[en] In recent years, the frequency bands in wireless communications are beginning to saturate due to the increase of traffic and the increase of users, and it for that reason that is necessary to study the frequency bands that are not begin used in the communication areas like millimeter and sub-millimeters bands. Data transmission in the EHF band is a possible solution to be able to transmit large amounts of information at high transmission speeds, alleviating current frequency bands. In this work, the transmission of data in frequencies of 100, 200, 300 and 400 Gigahertz is studied, using Quadrature phase-shift keying (QPSK) modulation with an architecture based on the beat of two lasers, whos frequencies are combined by means of Beam Splitter, so that result of the electric fields of two lasers is converted into a high frequency signal with the aid of a photoconductor antenna. The.beating of the two lasers, with different wavelengths and with the same power, when interacting with a photoconductor antenna results in a frequency in the order of Gigahertz. In the experiment, two types of receiver diodes were used, one Broadband (less than 4 GHz) and the other of narrowband (less than 1 MHz). The two antennas were tested at different distances and with different carrier frequencies to verify which one had the best performance in the EHF band in order to perform the data transmission.

Advisors/Committee Members: JEAN PIERRE VON DER WEID.

Subjects/Keywords: [pt] EHF - EXTREMELY HIGH FREQUENCY; [en] EHF - EXTREMELY HIGH FREQUENCY; [pt] QPSK - QUADRATURE PHASE-SHIFT KEYING; [en] QPSK - QUADRATURE PHASE-SHIFT KEYING; [pt] EVM - ERROR VECTOR MAGNITUDE; [en] EVM - ERROR VECTOR MAGNITUDE

…Error Vector Magnitude E-TM E-Utran Test Model QPSK Quadrature phase-shift keying 3GPP… …banda EHF depois da mixagem óptica 2.5 Modulação QPSK (Quadrature Phase-Shift Keying… …I (In Phase) e Q (Quadrature) [45], como se mostra na Figura… …27 PUC-Rio - Certificação Digital Nº 1512371/CA Figura 2.8: Diagrama de constelação QPSK… …para uma distância de 20 metros na banda de 300 GHz com modulação QPSK. No mesmo ano…

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

APA (6^th Edition):

ARELLANO, A. A. (2017). [en] TRANSMISSION AND RECEPTION OF DATA IN EHF. (Thesis). Pontifical Catholic University of Rio de Janeiro. Retrieved from http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=32212

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):

ARELLANO, ANDY ALVAREZ. “[en] TRANSMISSION AND RECEPTION OF DATA IN EHF.” 2017. Thesis, Pontifical Catholic University of Rio de Janeiro. Accessed January 15, 2021. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=32212.

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

MLA Handbook (7^th Edition):

ARELLANO, ANDY ALVAREZ. “[en] TRANSMISSION AND RECEPTION OF DATA IN EHF.” 2017. Web. 15 Jan 2021.

Vancouver:

ARELLANO AA. [en] TRANSMISSION AND RECEPTION OF DATA IN EHF. [Internet] [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2017. [cited 2021 Jan 15]. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=32212.

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

Council of Science Editors:

ARELLANO AA. [en] TRANSMISSION AND RECEPTION OF DATA IN EHF. [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2017. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=32212

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

2. Othman, Rami. Study of reception techniques for aeronautical telemetry modulations : Etude de techniques de réception des modulations de fréquence pour la télémesure aéronautique.

Degree: Docteur es, Télécommunications (STIC), 2019, CentraleSupélec

URL: http://www.theses.fr/2019CSUP0012

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La télémesure aéronautique est un système utilisé pendant la phase des essais en vol qui consiste à transmettre en temps-réel les données mesurées à bord… (more)

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La télémesure aéronautique est un système utilisé pendant la phase des essais en vol qui consiste à transmettre en temps-réel les données mesurées à bord de l'avion vers une station sol par le biais d'une liaison radiofréquence. Elle est une opération critique visant à surveiller le comportement de l’avion et à garantir la sécurité du pilote. La conception et les performances des émetteurs et des récepteurs ont été améliorées au fil des années mais tout en gardant la même famille de modulation utilisée pour transmettre les données. Ces données sont modulées par une modulation à phase continue (CPM) car cette dernière possède une enveloppe complexe constante, ce qui permet l’emploi des amplificateurs de puissance dans leur régime de saturation sans distordre le signal. Cependant, contrairement aux modulations classiques, la modulation CPM n’est pas une fonction linéaire des symboles transmis, ce qui rend la tâche de la démodulation complexe surtout quand on considère des scenarii assez compliqués tels que la présence des multi trajets ou bien l’emploi d’un système multi-antennes. Dans cette thèse, on se focalise sur une modulation appelée « Shaped Offset Quadrature Phase Shift Keying telemetry group » (SOQPSK-TG) qui commence à être de plus en plus populaire en télémesure aéronautique. Cette modulation appartient à une famille particulière de CPM car elle transmet des symboles ternaires au lieu de binaires. Dans ce travail, nous développons différents algorithmes de réception pour cette modulation en considérant différents scenarii afin de garantir un lien de télémesure permanent. Les solutions proposées offrent des performances attrayantes tout en gardant une complexité raisonnable pour une implémentation en temps-réel.

Aeronautical telemetry is a system used during the flight testing phase to monitor the behaviour of the plane by transmitting in real-time the aircraft dynamics from the aircraft to the ground station over a radio-frequency link. It is a critical process that requires highly reliable systems to ensure the pilot's safety. The design and the performance of the transmitting/ receiving equipment have been progressively upgraded over the years, and they mainly rely on continuous phase modulations (CPM) to convey the data. CPM is transmitter friendly because it has a constant complex envelope and therefore power amplifiers can be used at their saturation mode without distorting the signal. However, due to the nonlinear nature of this modulation, it can make the demodulation a hard task especially when considering complex scenarios such as the presence of multipath or the use of multiple antenna transmitters. In this PhD thesis, we focus on shaped offset quadrature phase-shift keying telemetry group (SOQPSK-TG) whose use is getting more and more popular in aeronautical. This modulation belongs to a particular CPM family since it transmits ternary symbols instead of binary ones. In this work, several reception algorithms have been developed for this modulation under different scenarios to ensure the…

Advisors/Committee Members: Louët, Yves (thesis director).

Subjects/Keywords: Télémesure aéronautique; Modulation à phase continue; Shaped offset quadrature phase shift keying (SOQPSK); Aeronautical telemetry; Continuous phase modulation (CPM); Shaped offset quadrature phase shift keying (SOQPSK)

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

APA (6^th Edition):

Othman, R. (2019). Study of reception techniques for aeronautical telemetry modulations : Etude de techniques de réception des modulations de fréquence pour la télémesure aéronautique. (Doctoral Dissertation). CentraleSupélec. Retrieved from http://www.theses.fr/2019CSUP0012

Chicago Manual of Style (16^th Edition):

Othman, Rami. “Study of reception techniques for aeronautical telemetry modulations : Etude de techniques de réception des modulations de fréquence pour la télémesure aéronautique.” 2019. Doctoral Dissertation, CentraleSupélec. Accessed January 15, 2021. http://www.theses.fr/2019CSUP0012.

MLA Handbook (7^th Edition):

Othman, Rami. “Study of reception techniques for aeronautical telemetry modulations : Etude de techniques de réception des modulations de fréquence pour la télémesure aéronautique.” 2019. Web. 15 Jan 2021.

Vancouver:

Othman R. Study of reception techniques for aeronautical telemetry modulations : Etude de techniques de réception des modulations de fréquence pour la télémesure aéronautique. [Internet] [Doctoral dissertation]. CentraleSupélec; 2019. [cited 2021 Jan 15]. Available from: http://www.theses.fr/2019CSUP0012.

Council of Science Editors:

Othman R. Study of reception techniques for aeronautical telemetry modulations : Etude de techniques de réception des modulations de fréquence pour la télémesure aéronautique. [Doctoral Dissertation]. CentraleSupélec; 2019. Available from: http://www.theses.fr/2019CSUP0012

Indian Institute of Science

3. Yogesh Prasad, K R. Generation of Modulated Microwave Signals using Optical Techniques for Onboard Spacecraft Applications.

Degree: PhD, Faculty of Engineering, 2017, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/2849

► This thesis deals with optical synthesis of unmodulated and modulated microwave signals. Generation of microwave signals based on optical heterodyning is discussed in detail. The… (more)

▼ This thesis deals with optical synthesis of unmodulated and modulated microwave signals. Generation of microwave signals based on optical heterodyning is discussed in detail. The effect of phase noise of laser on heterodyned output has been studied for different phase noise profiles. Towards this, we propose a generic algorithm to numerically model the linewidth broadening of a laser due to phase noise. Generation of microwave signals is demonstrated practically by conducting an optical heterodyning experiment. Signals ranging in frequency from 12.5 MHz to 27 GHz have been generated. Limitations of optical heterodyning based approach in terms of phase noise performance and frequency stability are discussed and practically demonstrated. A hardware-efficient Optical Phase Locked Loop (OPLL) is proposed to overcome these issues. Phase noise tracking performance of the proposed OPLL has been experimentally demonstrated. Phase noise values as low as -105 dBc/Hz at 10 KHz offset have been achieved. Optical modulators, owing to their extremely low electro-optic response time, can support high frequency modulating signals. This makes them highly attractive in comparison to their microwave counterparts. In this thesis, we propose techniques to generate microwave signals modulated at very high bit rates by down-converting the corresponding modulated optical signals to microwave domain. Down-conversion required for this process is achieved by optical heterodyning. The proposed concept has been theoretically analyzed, simulated and experimentally validated. Amplitude Modulated and ASK modulated microwave signals have been generated as Proof-of-Concept. Limitations posed by OPLL in generation of angle modulated microwave signals by optical heterodyning have been brought out. Schemes overcoming these limitations have been proposed towards generation of BPSK and QPSK modulated microwave signals. Integrated Optics (IO) technology has been studied as a means of implementation of the proposed concepts. IO components like Sinusoidal bends, Y-branch splitters and Electro-Optic-Modulators (EOMs) have been designed towards optical synthesis of modulated microwave signals. Propagation of modulated optical signal through these IO components has also been studied. An all-optic scheme based on Optical Beam Forming is proposed for transmission of QPSK modulated signal. Limitation of phase-shifting based approach, in terms of beam-squint, has been brought out. True-Time-Delay based approach has been proposed for applications demanding wide instantaneous bandwidth to avoid beam-squint. Algorithms / numerical methods required for analyses and simulations associated with the above-mentioned tasks have been evolved. This study is envisaged to provide useful insight into the realization of high-speed, compact, light-weight data transmitting systems based on Integrated Optics for future onboard spacecraft applications. This work, we believe, is a step towards realization of an Integrated Optic System-on-Chip solution for specific microwave… Advisors/Committee Members: Srinivas, T (advisor).

Subjects/Keywords: Microwave Photonics; Microwave Generation; Millimeter-wave Generation; Optical Heterodyning; Integrated Optics; Microwave Signals; Optical Beam Forming Network (OBFN); Electro-Optic Modulators (EOM); Microwave Signal Generation; Binary Phase Shift Keying (BPSK) Modulators; Quadrature Phase Shift Keying (QPSK) Modulators; Modulated Microwave Signals; Optical Phased Locked Loop (OPLL); True-Time Delay; Phased Array Antenna; Optical Signal Processing; Electronic Engineering

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

APA (6^th Edition):

Yogesh Prasad, K. R. (2017). Generation of Modulated Microwave Signals using Optical Techniques for Onboard Spacecraft Applications. (Doctoral Dissertation). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/2849

Chicago Manual of Style (16^th Edition):

Yogesh Prasad, K R. “Generation of Modulated Microwave Signals using Optical Techniques for Onboard Spacecraft Applications.” 2017. Doctoral Dissertation, Indian Institute of Science. Accessed January 15, 2021. http://etd.iisc.ac.in/handle/2005/2849.

MLA Handbook (7^th Edition):

Yogesh Prasad, K R. “Generation of Modulated Microwave Signals using Optical Techniques for Onboard Spacecraft Applications.” 2017. Web. 15 Jan 2021.

Vancouver:

Yogesh Prasad KR. Generation of Modulated Microwave Signals using Optical Techniques for Onboard Spacecraft Applications. [Internet] [Doctoral dissertation]. Indian Institute of Science; 2017. [cited 2021 Jan 15]. Available from: http://etd.iisc.ac.in/handle/2005/2849.

Council of Science Editors:

Yogesh Prasad KR. Generation of Modulated Microwave Signals using Optical Techniques for Onboard Spacecraft Applications. [Doctoral Dissertation]. Indian Institute of Science; 2017. Available from: http://etd.iisc.ac.in/handle/2005/2849

Stellenbosch University

4. Booysen, Samuel. The design of a high speed topology for a QPSK demodulator with emphasis on the synchronization algorithms needed for demodulation.

Degree: Electrical and Electronic Engineering, 2010, Stellenbosch University

URL: http://hdl.handle.net/10019.1/4107

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Thesis (MScEng (Electrical and Electronic Engineering)) – University of Stellenbosch, 2010.

ENGLISH ABSTRACT: This thesis describes the design and implementation of a software based QPSK demodulator… (more)

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Thesis (MScEng (Electrical and Electronic Engineering)) – University of Stellenbosch, 2010.

ENGLISH ABSTRACT: This thesis describes the design and implementation of a software based QPSK demodulator with a demodulation speed of 100 Mbps. The objective of the thesis was to identify a topology for the QPSK demodulator that would allow for high data rates and the design of the synchronization algorithms for carrier and symbol recovery. The QPSK demodulator was implemented on an Altera Stratix II field programmable gate array (FPGA), which does complex I and Q sampling on a down converted 720 MHz QPSK signal. The I and Q down converted baseband signals are sent through matched filters which are implemented with discrete components to maximize the signal to noise ratio of the received rectangular baseband pulses. A 1 GSPS direct digital synthesizer (DDS) is used to generate the synchronous clock for the analog to digital converters which samples the matched filter outputs. The demodulator uses two samples per symbol to demodulate the QPSK signal. A dual locking system is implemented to have a wide pre-locking filter for symbol synchronization and a narrow band post-lock filter to minimize the loop noise. A symbol lock detection algorithm decides when the symbol recovery loop is locked and switches between the loop filters. A second 1 GSPS DDS output is mixed with a local oscillator to generate the 1.44 GHz LO signal for the quadrature down conversion. The carrier recovery loop uses a numerically controlled oscillator inside the FPGA for initial carrier acquisition which allows for very wide locking bandwidth. After lock is achieved, the external carrier recovery loop takes over and removes any frequency offset in the complex baseband signal by changing the frequency of the DDS. A QPSK modulator was also developed to provide a QPSK signal with known data. The modulator can generate any constellation diagram up to 256 points.

AFRIKAANSE OPSOMMING: Hierdie tesis bespreek die ontwerp en implementasie van ’n sagteware gebaseerde QPSK demodulator met ’n demodulasie spoed van 100 Mbps. Die doelstelling is om ’n topologie te identifiseer vir ’n QPSK demodulator wat ’n hoë datatempo sal toelaat en ook om sinkronisasie algoritmes te ontwikkel vir draer en simbool herkenning. Die QPSK demodulator is geïmplimenteer op ’n Stratix II FPGA van Altera wat kompleks basisband monstering doen op infase en kwadratuur basisband seine. Die basisband seine word gegenereer van ’n 720 MHz QPSK sein met ’n kwadratuur menger wiese uittrees deur puls passende filters gestuur word om die sein tot ruis verhouding te maksimeer. ’n Een gigamonster per sekonde direk digitale sintetiseerder (DDS) is gebruik om die klok vir die analoog na digitaal omsetters te genereer vir sinkrone monstering van die pulse passende filter uittrees. Die demodulator gebruik twee monsters per simbool om ’n QPSK sein te demoduleer. ’n Tweevoudige sluit algoritme word gebruik vir die simbool sinkronisasie waar ’n wyeband filter die inisiële…

Advisors/Committee Members: De Swardt, J. B., University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering..

Subjects/Keywords: Electronic engineering; Quadrature Phase Shift Keying

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

APA (6^th Edition):

Booysen, S. (2010). The design of a high speed topology for a QPSK demodulator with emphasis on the synchronization algorithms needed for demodulation. (Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/4107

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):

Booysen, Samuel. “The design of a high speed topology for a QPSK demodulator with emphasis on the synchronization algorithms needed for demodulation.” 2010. Thesis, Stellenbosch University. Accessed January 15, 2021. http://hdl.handle.net/10019.1/4107.

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

MLA Handbook (7^th Edition):

Booysen, Samuel. “The design of a high speed topology for a QPSK demodulator with emphasis on the synchronization algorithms needed for demodulation.” 2010. Web. 15 Jan 2021.

Vancouver:

Booysen S. The design of a high speed topology for a QPSK demodulator with emphasis on the synchronization algorithms needed for demodulation. [Internet] [Thesis]. Stellenbosch University; 2010. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/10019.1/4107.

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

Council of Science Editors:

Booysen S. The design of a high speed topology for a QPSK demodulator with emphasis on the synchronization algorithms needed for demodulation. [Thesis]. Stellenbosch University; 2010. Available from: http://hdl.handle.net/10019.1/4107

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

Indian Institute of Science

5. Dhoolipala, Venkata Ramana. Investigations On PSK Spectrum Shaping Techniques For Space Communication Applications.

Degree: PhD, Faculty of Engineering, 2011, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/1196

Subjects/Keywords: Space Communication; Phase Shift Spectrum; Pulse Shaping Techniques; Spectrum Shaping; Space Communications; Pulse Shaping Filter; Space Applications; Bi-Phase Shift Keying (BPSK); Quadrature Phase Shift Keying (QPSK); PSK Modulations; Astronautics

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

APA (6^th Edition):

Dhoolipala, V. R. (2011). Investigations On PSK Spectrum Shaping Techniques For Space Communication Applications. (Doctoral Dissertation). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/1196

Chicago Manual of Style (16^th Edition):

Dhoolipala, Venkata Ramana. “Investigations On PSK Spectrum Shaping Techniques For Space Communication Applications.” 2011. Doctoral Dissertation, Indian Institute of Science. Accessed January 15, 2021. http://etd.iisc.ac.in/handle/2005/1196.

MLA Handbook (7^th Edition):

Dhoolipala, Venkata Ramana. “Investigations On PSK Spectrum Shaping Techniques For Space Communication Applications.” 2011. Web. 15 Jan 2021.

Vancouver:

Dhoolipala VR. Investigations On PSK Spectrum Shaping Techniques For Space Communication Applications. [Internet] [Doctoral dissertation]. Indian Institute of Science; 2011. [cited 2021 Jan 15]. Available from: http://etd.iisc.ac.in/handle/2005/1196.

Council of Science Editors:

Dhoolipala VR. Investigations On PSK Spectrum Shaping Techniques For Space Communication Applications. [Doctoral Dissertation]. Indian Institute of Science; 2011. Available from: http://etd.iisc.ac.in/handle/2005/1196

Brno University of Technology

6. Lubajo, Lubajo Moses Wolyan. Nové trendy v optických vláknových komunikacích: New trends in fibre optic sommunications.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/173503

► Optical fiber transmission is one of the leading methods of information transfer for long distance transmission. Various modulation formats have been developed to maximize information… (more)

Subjects/Keywords: Optické vlákno; Single Mode Fiber (SMF); Multi Mode Fiber (MMF); Multi-Core Fibre (MCF); Few Mode Fiber (FMF); Kvadraturní fázové posunutí klíčů (QPSK); Klíčování posunu amplitudy (ASK); Klíče posunu frekvence (FSK); PHOTOSS; Duální polarizace QPSK (DP QPSK); Binary Phase Shift Keying (BPSK); Modely světel; Rayův model; vlnovy model; optické vysílače a přijímače; šíření světla v optickych vláknech; geometrická optika; polarizace světla; lineární polarizace; režimy používané ve vlnovodech; různé standardy optickych vláken; doporučení ITU; ztráta signálu v optickém vlákně; přeslechy; otevírání očí; nelineární efekty; samofázová modulace (SPM); modulace mezi fázemi (CFM); čtyřvlnové míchání (FWM); nelineární rozptyl; stimulovany Brillouinův rozptyl (SBS); Stimulovany Ramanův rozptyl (SRS); kvantová distribuce klíčů (QKD).; Optical fiber; Single mode; Multi Mode; Multi-core Fibre (MCF); Few Mode Fiber (FMF); Quadrature Phase Shift Keying (QPSK); Amplitude Shift Keying (ASK); Frequency Shift Keying (FSK); PHOTOSS; Dual Polarization QPSK (DP QPSK); Binary Phase Shift Keying (BPSK); Modes of lights; The Ray Model; Wave Model; Optical Transmitters and Receivers; Propagation of light in optical fibers; Geometric Optics; Polarization of light; Linear Polarization; Modes used in waveguides; Different standards of optical fibers; ITU recommendations; signal loss in optical fiber; crosstalk; eye opening; nonlinear effects; Self-Phase Modulation (SPM); Cross-Phase Modulation; Four-Wave Mixing; Nonlinear Scattering; Stimulated Brillouin Scatterrig (SBS); Stimulated Raman Scatterring (SRS); Quantum Key Distribution (QKD).

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

APA (6^th Edition):

Lubajo, L. M. W. (2019). Nové trendy v optických vláknových komunikacích: New trends in fibre optic sommunications. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/173503

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):

Lubajo, Lubajo Moses Wolyan. “Nové trendy v optických vláknových komunikacích: New trends in fibre optic sommunications.” 2019. Thesis, Brno University of Technology. Accessed January 15, 2021. http://hdl.handle.net/11012/173503.

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

MLA Handbook (7^th Edition):

Lubajo, Lubajo Moses Wolyan. “Nové trendy v optických vláknových komunikacích: New trends in fibre optic sommunications.” 2019. Web. 15 Jan 2021.

Vancouver:

Lubajo LMW. Nové trendy v optických vláknových komunikacích: New trends in fibre optic sommunications. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/11012/173503.

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

Council of Science Editors:

Lubajo LMW. Nové trendy v optických vláknových komunikacích: New trends in fibre optic sommunications. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/173503

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

7. Ramantanis, Petros. Contribution to the analysis of optical transmission systems using QPSK modulation : Contribution à l'étude des systèmes de transmission optique utilisant le format de modulation QPSK.

Degree: Docteur es, Electronique et communications, 2011, Evry, Institut national des télécommunications

URL: http://www.theses.fr/2011TELE0020

► La demande constante de capacité et la saturation prévue de la fibre monomode ont conduit récemment à des avances technologiques qui ont complètement changé le… (more)

▼ La demande constante de capacité et la saturation prévue de la fibre monomode ont conduit récemment à des avances technologiques qui ont complètement changé le paysage des télécommunications à fibre optique. Le progrès le plus important était la mise en œuvre d'une détection cohérente à l'aide d'électronique rapide. Cela a permis pas seulement l'utilisation de formats de modulation qui promettent une utilisation plus efficace de la bande passante, mais aussi l’utilisation des algorithmes adaptés pour combattre la dégradation du signal optique due à la propagation. Cette thèse a commencé un peu après le début de cette « ère du cohérent » et son principal objectif était de revoir les effets physiques de la propagation dans des systèmes de transmission terrestres, utilisant le format de modulation QPSK (Quadrature Phase Shift Keying). Le manuscrit est divisé en deux parties. La première partie est consacrée à une étude sur les séquences des données qui doivent être utilisés dans les simulations numériques, lorsqu’un format de modulation avancée est impliqué. La propagation, et en particulier l'interaction entre la dispersion chromatique et les non-linéarités, introduisent une interférence inter-symbole (ISI). Vu que cet ISI dépend de l’enchainement des données transmises, il est évident que le choix de la séquence a une influence sur la qualité estimée du canal. Etant donné que des séquences aléatoires infinies ne sont pas pratiquement réalisables, nous utilisons souvent des séquences « pseudo-aléatoires » (PR), i.e. des séquences déterministes de longueur finie, avec des statistiques équilibrés, qui semblent être aléatoires. Dans la première partie, nous décrivons la méthode de génération de séquences PR avec M. niveaux (M> 2) et nous détaillons leurs propriétés. En outre, nous proposons des outils numériques pour caractériser les séquences non pseudo-aléatoires qu’on utilise souvent dans des simulations, ou parfois aussi dans des expériences au laboratoire. Enfin, nous présentons les résultats de simulations qui permettent de quantifier la nécessité d'utiliser des séquences PR en fonction des paramètres du système. Après avoir établi les séquences finies "les plus adaptées", dans la seconde partie du manuscrit, nous nous concentrons sur l'étude de la propagation, dans le contexte d'un système de transmission QPSK et en supposant une gestion de dispersion et un type de fibre variables. Plus précisément, nous étudions numériquement les statistiques de signaux dégradés dus à l'interaction de la dispersion chromatique avec les effets non linéaires, en négligeant tout effet de polarisation ou inter-canaux, aussi que le bruit des amplificateurs. Dans ce contexte, nous étions intéressés à déterminer si certaines lois empiriques développées pour les systèmes OOK, sont valable dans le cas d'une modulation QPSK, tels que le critère de la phase non-linéaire cumulée (ΦNL) ou des lois qui permettent une optimisation de la gestion de dispersion. Ensuite, nous révélons l'importance de la rotation de la constellation du signal… Advisors/Committee Members: Benkelfat, Badr-Eddine (thesis director).

Subjects/Keywords: Quadrature Phase Shift Keying; Séquences pseudo-aléatoires; Gestion de dispersion; Dispersion management; Pseudorandom sequences; MAP; Constellations; Signal statistics

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

APA (6^th Edition):

Ramantanis, P. (2011). Contribution to the analysis of optical transmission systems using QPSK modulation : Contribution à l'étude des systèmes de transmission optique utilisant le format de modulation QPSK. (Doctoral Dissertation). Evry, Institut national des télécommunications. Retrieved from http://www.theses.fr/2011TELE0020

Chicago Manual of Style (16^th Edition):

Ramantanis, Petros. “Contribution to the analysis of optical transmission systems using QPSK modulation : Contribution à l'étude des systèmes de transmission optique utilisant le format de modulation QPSK.” 2011. Doctoral Dissertation, Evry, Institut national des télécommunications. Accessed January 15, 2021. http://www.theses.fr/2011TELE0020.

MLA Handbook (7^th Edition):

Ramantanis, Petros. “Contribution to the analysis of optical transmission systems using QPSK modulation : Contribution à l'étude des systèmes de transmission optique utilisant le format de modulation QPSK.” 2011. Web. 15 Jan 2021.

Vancouver:

Ramantanis P. Contribution to the analysis of optical transmission systems using QPSK modulation : Contribution à l'étude des systèmes de transmission optique utilisant le format de modulation QPSK. [Internet] [Doctoral dissertation]. Evry, Institut national des télécommunications; 2011. [cited 2021 Jan 15]. Available from: http://www.theses.fr/2011TELE0020.

Council of Science Editors:

Ramantanis P. Contribution to the analysis of optical transmission systems using QPSK modulation : Contribution à l'étude des systèmes de transmission optique utilisant le format de modulation QPSK. [Doctoral Dissertation]. Evry, Institut national des télécommunications; 2011. Available from: http://www.theses.fr/2011TELE0020

8. Lazarou, Ioannis. Σχήματα διαμόρφωσης ανώτερης τάξης για οπτικές τηλεπικοινωνίες σε οπτικά δίκτυα κορμού και πρόσβασης νέας γενιάς.

Degree: 2015, National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)

URL: http://hdl.handle.net/10442/hedi/38135

► Today’s information society relies to an unprecedented extent on broadband communication solutions, with applications such as high-speed Internet access, mobile voice and data services, multimedia… (more)

▼ Today’s information society relies to an unprecedented extent on broadband communication solutions, with applications such as high-speed Internet access, mobile voice and data services, multimedia broadcast systems, and high-capacity data networking for grid computing and remote storage. Up to now, the demands on data-bandwidth and global IP-traffic handling induced by these applications were adequately addressed by legacy optical networks, exploiting WDM techniques with line rates up to 40 Gb/s per-channel and simple light-encoding schemes based on binary optical modulation. However, even though these traditional light-encoding schemes have dominated in these networks so far, the truth is that soon they will be unable to cope with the complexity and ultra-fast bitrates that the new Zettabyte Era imposes. Recent forecasts on broadband connectivity have reported that in 2014 the total amount of networked devices have officially surpassed the number of people on Earth and by the end of 2016 global IP traffic will experience a Compound Annual Growth Rate of about 29% in the next 3 years, reaching 1.3 zettabytes/year.Fortunately, at the turn of the millennium, this situation started to change significantly. Today, advances in high-speed electronics and optoelectronics are not only used to further push per-channel data rates, but also to increase the sophistication of transponder hardware. Advanced optical modulation formats and sophisticated digital signal processing (DSP) techniques on network transceivers, together with/without coherent reception are currently gaining momentum. This situation is evident not only in industry, with the demonstration of state-of-the-art 100 Gb/s network transponders for core network applications, but also in research where sophisticated modulation formats start to penetrate in optical access scenarios. Following the trend in academia and industry, the scope of my PhD dissertation targets on solving the potential capacity crunch on current and next-generation long haul and access networks by exploring techniques to increase the achievable data rates, spectral efficiency and their overall transmission reach.Coping with the current standards on 100 Gb/s DWDM applications for long haul networks, the first part of my PhD Thesis, focuses on the study of 28 and 32 Gbaud QPSK modulation formats with and without Polarization Multiplexing (PM) over Brownfield and Greenfield optical networks. This study involves the design, development and the implementation of long-reach transmission experiments in combination with direct or coherent detection and DSP at the receiver side, both with simulations and actual laboratory experiments held in PCRL premises at National Technical University of Athens. Additionally, aiming to higher spectral efficiencies and foreseeing that the forthcoming 400 Gb/s Ethernet applications will follow soon, a special investigation on optical 16-QAM, 32-QAM and 64-QAM signal modulation is reported thoroughly, covering the stages of their generation, transmission and…

Subjects/Keywords: Οπτική διαμόρφωση; Σχήματα διαμόρφωσης ανώτερης τάξης; Σύμφωνη φώραση; Οπτικά δίκτυα κορμού; Οπτικά δίκτυα πρόσβασης; Παθητικά οπτικά δίκτυα (PONs); Τετραφασική διαμόρφωση μετατόπισης φάσης (QPSK); Τετραγωνισμένη διαμόρφωση πλάτους (QAM); Πολυπλεξία ως προς την πόλωση (PolMux); Τετραδική διαμόρφωση πλάτους (4-PAM); Ημιαγώγιμος οπτικός ενισχυτής (SOA); Διαμορφωτής ηλεκτροαπορρόφησης (EAM); Διαμορφωτής ορθογωνιότητας Mach Zehnder (ΙQ MZM); Optical modulation; Advanced modulation formats; Coherent detection; Long-Haul Networks; Optical access; Passive optical networks (PONs); Quadrature phase shift keying (QPSK); Quadrature amplitude modulation (QAM); Polarization multiplexing (PolMux); Quaternary pulsed amplitude modulation (4-PAM); Semiconductor optical amplifier (SOA); Electro-Absorption Modulator (EAM); Quadrature Mach-Zehnder Modulator (IQ MZM)

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

APA (6^th Edition):

Lazarou, I. (2015). Σχήματα διαμόρφωσης ανώτερης τάξης για οπτικές τηλεπικοινωνίες σε οπτικά δίκτυα κορμού και πρόσβασης νέας γενιάς. (Thesis). National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ). Retrieved from http://hdl.handle.net/10442/hedi/38135

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):

Lazarou, Ioannis. “Σχήματα διαμόρφωσης ανώτερης τάξης για οπτικές τηλεπικοινωνίες σε οπτικά δίκτυα κορμού και πρόσβασης νέας γενιάς.” 2015. Thesis, National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ). Accessed January 15, 2021. http://hdl.handle.net/10442/hedi/38135.

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

MLA Handbook (7^th Edition):

Lazarou, Ioannis. “Σχήματα διαμόρφωσης ανώτερης τάξης για οπτικές τηλεπικοινωνίες σε οπτικά δίκτυα κορμού και πρόσβασης νέας γενιάς.” 2015. Web. 15 Jan 2021.

Vancouver:

Lazarou I. Σχήματα διαμόρφωσης ανώτερης τάξης για οπτικές τηλεπικοινωνίες σε οπτικά δίκτυα κορμού και πρόσβασης νέας γενιάς. [Internet] [Thesis]. National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ); 2015. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/10442/hedi/38135.

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

Council of Science Editors:

Lazarou I. Σχήματα διαμόρφωσης ανώτερης τάξης για οπτικές τηλεπικοινωνίες σε οπτικά δίκτυα κορμού και πρόσβασης νέας γενιάς. [Thesis]. National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ); 2015. Available from: http://hdl.handle.net/10442/hedi/38135

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

9. LUO BIN. Analysis and synthesis of six-port modulators.

Degree: 2009, National University of Singapore

URL: https://scholarbank.nus.edu.sg/handle/10635/16312

Subjects/Keywords: Modulation; Quadrature phase shift keying; Multiport circuits; Reflection; Carrier leakage; Phase mapping

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APA (6^th Edition):

BIN, L. (2009). Analysis and synthesis of six-port modulators. (Thesis). National University of Singapore. Retrieved from https://scholarbank.nus.edu.sg/handle/10635/16312

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):

BIN, LUO. “Analysis and synthesis of six-port modulators.” 2009. Thesis, National University of Singapore. Accessed January 15, 2021. https://scholarbank.nus.edu.sg/handle/10635/16312.

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

MLA Handbook (7^th Edition):

BIN, LUO. “Analysis and synthesis of six-port modulators.” 2009. Web. 15 Jan 2021.

Vancouver:

BIN L. Analysis and synthesis of six-port modulators. [Internet] [Thesis]. National University of Singapore; 2009. [cited 2021 Jan 15]. Available from: https://scholarbank.nus.edu.sg/handle/10635/16312.

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

Council of Science Editors:

BIN L. Analysis and synthesis of six-port modulators. [Thesis]. National University of Singapore; 2009. Available from: https://scholarbank.nus.edu.sg/handle/10635/16312

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

Brno University of Technology

10. Buchta, Marek. Efektivní využití telekomunikačního výukového prostředí: Effective usage of telecommunication education environment.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/17470

► The topic of this bachelor´s thesis was effective usage of telecommunication‘s educational interface. The main aim of my thesis was to teach software and hardware… (more)

Subjects/Keywords: pulzně kódová modulace; kvadraturní amplitudová modulace; fázová digitální modulace; telefonní pásmo; realizace; pulse code modulation; quadrature amplitude modulation; phase shift keying; telephone band; realization

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

APA (6^th Edition):

Buchta, M. (2019). Efektivní využití telekomunikačního výukového prostředí: Effective usage of telecommunication education environment. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/17470

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):

Buchta, Marek. “Efektivní využití telekomunikačního výukového prostředí: Effective usage of telecommunication education environment.” 2019. Thesis, Brno University of Technology. Accessed January 15, 2021. http://hdl.handle.net/11012/17470.

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

MLA Handbook (7^th Edition):

Buchta, Marek. “Efektivní využití telekomunikačního výukového prostředí: Effective usage of telecommunication education environment.” 2019. Web. 15 Jan 2021.

Vancouver:

Buchta M. Efektivní využití telekomunikačního výukového prostředí: Effective usage of telecommunication education environment. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/11012/17470.

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

Council of Science Editors:

Buchta M. Efektivní využití telekomunikačního výukového prostředí: Effective usage of telecommunication education environment. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/17470

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

University of Southern California

11. Zhang, Bo. Nonlinear optical signal processing for high-speed, spectrally efficient fiber optic systems and networks.

Degree: PhD, Electrical Engineering, 2009, University of Southern California

URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/152965/rec/4452

► The past decade has witnessed astounding boom in telecommunication network traffic. With the emergence of multimedia over Internet, the high-capacity optical transport systems have started… (more)

▼ The past decade has witnessed astounding boom in telecommunication network traffic. With the emergence of multimedia over Internet, the high-capacity optical transport systems have started to shift focus from the core network towards the end users. This trend leads to diverse optical networks with transparency and reconfigurability requirement. As single channel data rate continues to increase and channel spacing continues to shrink for high capacity, high spectral efficiency, the workload on conventional electronic signal processing elements in the router nodes continues to build up. Performing signal processing functions in the optical domain can potentially alleviate the speed bottleneck if the unique optical properties are efficiently leveraged to assist electronic processing methodologies. Ultra-high bandwidth capability along with the promise for multi-channel and format-transparent operation make optical signal processing an attractive technology which is expected to have great impact on future optical networks.; For optical signal processing applications in fiber-optic network and systems, a laudable goal would be to explore the unique nonlinear optical processes in novel photonic devices. This dissertation investigates novel optical signal processing techniques through simulations and experimental demonstrations, analyzes limitations of these nonlinear processing elements and proposes techniques to enhance the system performance or designs for functional photonic modules.; Two key signal-processing building blocks for future optical networks, namely slow-light-based tunable optical delay lines and SOA-based high-speed wavelength converters, are presented in the first part of the dissertation. Phase preserving and spectrally efficient slow light are experimentally demonstrated using advanced modulation formats. Functional and novel photonic modules, such as multi-channel synchronizer and variable-bit-rate optical time division multiplexer are designed and demonstrated using slow-light tunable delay lines. Deleterious signal degrading effects on SOA-based differential mode wavelength converters are experimentally identified and techniques to alleviate or eliminate them are proposed.; The second part of the dissertation discusses enabling technologies for enhancing the system performance or enriching the system functionalities. Two novel optoelectronic devices, namely the optical injection-locked VCSEL and MEMS actuated micro-disk resonator, are utilized for the demonstration of transmission reach extension and dynamic bandwidth allocation, respectively. Additionally, polarization-based novel optical instruments, such as a polarimeter-enabled optical spectrum analyzer and an all-optical automatic polarization de-multiplexer, are designed and demonstrated. Finally, a 40-Gb/s capable re-circulating fiber loop test-bed is constructed and design guidelines as well as experimental results are discussed in detail. Advisors/Committee Members: Willner, Alan E. (Committee Chair), Steier, William H. (Committee Member), Bickers, Nelson Eugene, Jr. (Committee Member).

Subjects/Keywords: optical fiber communication; optical signal processing; nonlinear optics; slow light; advanced modulation format; differential phase shift keying; differential quadrature phase shift keying

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

APA (6^th Edition):

Zhang, B. (2009). Nonlinear optical signal processing for high-speed, spectrally efficient fiber optic systems and networks. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/152965/rec/4452

Chicago Manual of Style (16^th Edition):

Zhang, Bo. “Nonlinear optical signal processing for high-speed, spectrally efficient fiber optic systems and networks.” 2009. Doctoral Dissertation, University of Southern California. Accessed January 15, 2021. http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/152965/rec/4452.

MLA Handbook (7^th Edition):

Zhang, Bo. “Nonlinear optical signal processing for high-speed, spectrally efficient fiber optic systems and networks.” 2009. Web. 15 Jan 2021.

Vancouver:

Zhang B. Nonlinear optical signal processing for high-speed, spectrally efficient fiber optic systems and networks. [Internet] [Doctoral dissertation]. University of Southern California; 2009. [cited 2021 Jan 15]. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/152965/rec/4452.

Council of Science Editors:

Zhang B. Nonlinear optical signal processing for high-speed, spectrally efficient fiber optic systems and networks. [Doctoral Dissertation]. University of Southern California; 2009. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/152965/rec/4452

University of New Orleans

12. Quinteros, Milton I. Trellis Coded Modulation Schemes Using A New Expanded 16-Dimensional Constant Envelope Quadrature-Quadrature Phase Shift Keying Constellation.

Degree: MS, Civil and Environmental Engineering, 2009, University of New Orleans

URL: https://scholarworks.uno.edu/td/924

► In this thesis, the author presents and analyzes two 4-dimensional Constant Envelope Quadrature-Quadrature Phase Shift Keying constellations. Optimal demodulators for the two constellations are presented,… (more)

Subjects/Keywords: Multidimensional constellation; constant envelope; constellation expansion; trellis coded modulation; quadrature-quadrature phase shift keying

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

APA (6^th Edition):

Quinteros, M. I. (2009). Trellis Coded Modulation Schemes Using A New Expanded 16-Dimensional Constant Envelope Quadrature-Quadrature Phase Shift Keying Constellation. (Thesis). University of New Orleans. Retrieved from https://scholarworks.uno.edu/td/924

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):

Quinteros, Milton I. “Trellis Coded Modulation Schemes Using A New Expanded 16-Dimensional Constant Envelope Quadrature-Quadrature Phase Shift Keying Constellation.” 2009. Thesis, University of New Orleans. Accessed January 15, 2021. https://scholarworks.uno.edu/td/924.

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

MLA Handbook (7^th Edition):

Quinteros, Milton I. “Trellis Coded Modulation Schemes Using A New Expanded 16-Dimensional Constant Envelope Quadrature-Quadrature Phase Shift Keying Constellation.” 2009. Web. 15 Jan 2021.

Vancouver:

Quinteros MI. Trellis Coded Modulation Schemes Using A New Expanded 16-Dimensional Constant Envelope Quadrature-Quadrature Phase Shift Keying Constellation. [Internet] [Thesis]. University of New Orleans; 2009. [cited 2021 Jan 15]. Available from: https://scholarworks.uno.edu/td/924.

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

Council of Science Editors:

Quinteros MI. Trellis Coded Modulation Schemes Using A New Expanded 16-Dimensional Constant Envelope Quadrature-Quadrature Phase Shift Keying Constellation. [Thesis]. University of New Orleans; 2009. Available from: https://scholarworks.uno.edu/td/924

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

13. Πέτρου, Κωνσταντίνος. Μελέτη αλγορίθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης.

Degree: 2010, University of Patras

URL: http://nemertes.lis.upatras.gr/jspui/handle/10889/3832

►

The scope of this dissertation is to investigate the merits and implications of using multilevel modulation formats in optical communications systems. Following the trend in… (more)

▼

The scope of this dissertation is to investigate the merits and implications of using multilevel modulation formats in optical communications systems. Following the trend in academia and industry, special focus is placed on quadrature phase-shift keying (QPSK), and specifically on polarization division multiplexed (PDM) QPSK. A special kind of receiver is investigated thoroughly, the digital coherent receiver, the equivalent of the coherent quadrature demodulator in classical communications nomenclature. A large number of digital signal processing (DSP) algorithms are implemented, some of them novel, and their performance is examined, analyzed, and compared in a number of practical system scenarios. The impact of transmitter / receiver imperfections and a number of optical fiber impairments on system performance is studied. Experimental results taken from proof-of-concept experiments are also analyzed.

Η διατριβή αυτή έχει ως σκοπό τη μελέτη οπτικών τηλεπικοινωνιακών συστημάτων που χρησιμοποιούν τετραδικές διαμορφώσεις φάσης, πολυπλεξία κατά πόλωση και σύμφωνους ψηφιακούς δέκτες διαφοροποίησης φάσης και πόλωσης. Μελετήθηκαν αλγόριθμοι επεξεργασίας σήματος κατάλληλοι για εξάλειψη της επίδρασης των φαινομένων διάδοσης και των μη ιδανικοτήτων οπτικών τηλεπικοινωνιακών συστημάτων. Η μελέτη έγινε με προσομοίωση Monte-Carlo, με χρήση ημιαναλυτικής μεθόδου προσδιορισμού της πιθανότητας σφάλματος τηλεπικοινωνιακού συστήματος και με ανάλυση πειραματικών δεδομένων. Τα πειραματικά δεδομένα ελήφθησαν από οπτικό τηλεπικοινωνιακό σύστημα με τετραδική διαμόρφωση φάσης και πολυπλεξία κατά πόλωση με ρυθμούς συμβόλων 0.1-10 GBd (0.4-40 Gb/s). Μελετήθηκαν αλγόριθμοι επανένωσης των πολώσεων, αλγόριθμοι αποπολύπλεξης των πολώσεων, αλγόριθμοι διόρθωσης της ανισοσταθμίας ορθογωνιότητας, αλγόριθμοι εκτίμησης και αφαίρεσης της ενδιάμεσης συχνότητας και αλγόριθμοι εκτίμησης και αφαίρεσης του θορύβου φάσης των laser.

Advisors/Committee Members: Ρούδας, Ιωάννης, Petrou, Constantinos, Βλάχος, Κυριάκος, Στυλιανάκης, Βασίλειος, Παλιουράς, Βασίλειος, Καμαλάκης, Θωμάς, Μακιός, Βασίλειος, Τουμπακάρης, Δημήτριος-Αλέξανδρος, Ρούδας, Ιωάννης.

Subjects/Keywords: Optical fiber communications; Polarization; Quadrature phase shift keying; Polarization division multiplexing; Optical coherent phase- and polarization-diversity receivers; Signal processing algorithms; 621.382 7; Οπτικές τηλεπικοινωνίες; Πόλωση; Τετραδικές διαμορφώσεις φάσης; Πολυπλεξία κατά πόλωση; Σύμφωνοι οπτικοί δέκτες διαφοροποίησης φάσης και πόλωσης; Αλγόριθμοι επεξεργασίας σήματος

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

APA (6^th Edition):

Πέτρου, �. (2010). Μελέτη αλγορίθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης. (Doctoral Dissertation). University of Patras. Retrieved from http://nemertes.lis.upatras.gr/jspui/handle/10889/3832

Chicago Manual of Style (16^th Edition):

Πέτρου, Κωνσταντίνος. “Μελέτη αλγορίθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης.” 2010. Doctoral Dissertation, University of Patras. Accessed January 15, 2021. http://nemertes.lis.upatras.gr/jspui/handle/10889/3832.

MLA Handbook (7^th Edition):

Πέτρου, Κωνσταντίνος. “Μελέτη αλγορίθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης.” 2010. Web. 15 Jan 2021.

Vancouver:

Πέτρου �. Μελέτη αλγορίθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης. [Internet] [Doctoral dissertation]. University of Patras; 2010. [cited 2021 Jan 15]. Available from: http://nemertes.lis.upatras.gr/jspui/handle/10889/3832.

Council of Science Editors:

Πέτρου �. Μελέτη αλγορίθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης. [Doctoral Dissertation]. University of Patras; 2010. Available from: http://nemertes.lis.upatras.gr/jspui/handle/10889/3832

14. Henderson, Mathew H. Carrier Wave Reutilization in Optical Fiber Communications.

Degree: 2016, University of Nevada – Reno

URL: http://hdl.handle.net/11714/2231

► Traditional communication links utilize a transmitter with a continuous wave laser that creates a carrier wave. This carrier is then altered within the transmitter either… (more)

Subjects/Keywords: Amplitude Shift Keying; Carrier Wave Reutilization; Differential Phase Shift Keying; Green Optical Network; Optical Fiber Communication; Optical Modulation

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APA (6^th Edition):

Henderson, M. H. (2016). Carrier Wave Reutilization in Optical Fiber Communications. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/2231

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):

Henderson, Mathew H. “Carrier Wave Reutilization in Optical Fiber Communications.” 2016. Thesis, University of Nevada – Reno. Accessed January 15, 2021. http://hdl.handle.net/11714/2231.

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

MLA Handbook (7^th Edition):

Henderson, Mathew H. “Carrier Wave Reutilization in Optical Fiber Communications.” 2016. Web. 15 Jan 2021.

Vancouver:

Henderson MH. Carrier Wave Reutilization in Optical Fiber Communications. [Internet] [Thesis]. University of Nevada – Reno; 2016. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/11714/2231.

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

Council of Science Editors:

Henderson MH. Carrier Wave Reutilization in Optical Fiber Communications. [Thesis]. University of Nevada – Reno; 2016. Available from: http://hdl.handle.net/11714/2231

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

NSYSU

15. Mao, Kuei-Chung. APSK Transmission Experiment Using Digital Coherent Receiver.

Degree: Master, Electro-Optical Engineering, 2010, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702110-152039

► In the current transmission system, the information bandwidth of the optical fiber communication system is limited by optical amplifier bandwidth, and more efficient use of… (more)

Subjects/Keywords: amplitude and phase shift keying; digital coherent receiver; modulation format

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APA (6^th Edition):

Mao, K. (2010). APSK Transmission Experiment Using Digital Coherent Receiver. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702110-152039

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):

Mao, Kuei-Chung. “APSK Transmission Experiment Using Digital Coherent Receiver.” 2010. Thesis, NSYSU. Accessed January 15, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702110-152039.

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

MLA Handbook (7^th Edition):

Mao, Kuei-Chung. “APSK Transmission Experiment Using Digital Coherent Receiver.” 2010. Web. 15 Jan 2021.

Vancouver:

Mao K. APSK Transmission Experiment Using Digital Coherent Receiver. [Internet] [Thesis]. NSYSU; 2010. [cited 2021 Jan 15]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702110-152039.

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

Council of Science Editors:

Mao K. APSK Transmission Experiment Using Digital Coherent Receiver. [Thesis]. NSYSU; 2010. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702110-152039

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

Cape Peninsula University of Technology

16. Biyoghe, Joel S. Design and implementation of a high data rate QPSK demodulator for nanosatellites .

Degree: 2017, Cape Peninsula University of Technology

URL: http://etd.cput.ac.za/handle/20.500.11838/2744

► This dissertation presents the development of a quadrature phase shift keying (QPSK) demodulator for nanosatellites that complies with both the limited resources associated with nanosatellites… (more)

▼ This dissertation presents the development of a quadrature phase shift keying (QPSK) demodulator for nanosatellites that complies with both the limited resources associated with nanosatellites as well as the flexibility and configurability required for a software defined radio (SDR) platform. This research project is a component of a bigger project, which is to develop a high-speed receiver for nanosatellites, and aims to provide a practical solution to the need for communication technologies that support emerging nanosatellite applications, such as Earth observation and communications. The development of the QPSK demodulator follows an all-digital implementation approach. The main reason for selecting this approach is to have a system that is flexible and reconfigurable to comply with the SDR requirements. Another reason for selecting this approach is to comply with the low noise system, low power consumption as well as the small size and weight requirements associated with nanosatellites. The QPSK demodulator is implemented on an IGLOO2 Field Programmable Gate Array (FPGA), due to its robustness to radiation and high-speed capability. Initially, the techniques used to design each subsystem of the QPSK demodulator are selected. Then, algorithms to digitally implement the designed subsystems are produced. Thereafter, the code for the digital QPSK demodulator is written and verified in Matlab first. The simulation of the Matlab-based QPSK demodulator performs satisfactorily. Subsequently, the code to implement the QPSK demodulator on an FPGA (IGLOO2) has been written in Libero, using VHSIC Hardware Description Language (VHDL). The resulting FPGA-based QPSK demodulator has been emulated in Libero (an integration and development environment (IDE) for Microsemi FPGAs) using a test-bench as well as other analysis tools. The test-bench results are visualized using Modelsim. The results show that the demodulator can support data rates up to 13.25 Mbps if 16 samples-per-symbols are used, and up to 26.5 Mbps if 8 samples-per-symbols are used. It also has a very good bit-error-rate performance, which is simulated to be within a factor of 5 of the theoretical limit of QPSK modulation. Finally, the demodulator consumes less than 15 mW at the maximum operating speed. and has been coded to mitigate the effects of space radiation and noise contriution by the demodulator itself.

Subjects/Keywords: Matlab; Phase shift keying; Demodulation (Electronics); Digital communication; Nanosatellites

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APA (6^th Edition):

Biyoghe, J. S. (2017). Design and implementation of a high data rate QPSK demodulator for nanosatellites . (Thesis). Cape Peninsula University of Technology. Retrieved from http://etd.cput.ac.za/handle/20.500.11838/2744

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):

Biyoghe, Joel S. “Design and implementation of a high data rate QPSK demodulator for nanosatellites .” 2017. Thesis, Cape Peninsula University of Technology. Accessed January 15, 2021. http://etd.cput.ac.za/handle/20.500.11838/2744.

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

MLA Handbook (7^th Edition):

Biyoghe, Joel S. “Design and implementation of a high data rate QPSK demodulator for nanosatellites .” 2017. Web. 15 Jan 2021.

Vancouver:

Biyoghe JS. Design and implementation of a high data rate QPSK demodulator for nanosatellites . [Internet] [Thesis]. Cape Peninsula University of Technology; 2017. [cited 2021 Jan 15]. Available from: http://etd.cput.ac.za/handle/20.500.11838/2744.

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

Council of Science Editors:

Biyoghe JS. Design and implementation of a high data rate QPSK demodulator for nanosatellites . [Thesis]. Cape Peninsula University of Technology; 2017. Available from: http://etd.cput.ac.za/handle/20.500.11838/2744

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

Brno University of Technology

17. Spáčil, Jan. Komunikační systémy s digitálními modulacemi: Communication Systems with Digital Modulations.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/16972

► The purpose of this semestral project is to explain the basic issues of simple digital modulations through the creation of simple digital modulations using direct… (more)

Subjects/Keywords: Digitální modulace; Amplitudové klíčování; Fázové klíčování; Kmitočtové klíčování; Přímá digitální syntéza; Digital modulation; Amplitude shift keying; Phase shift keying; Frequency shift keying; Direct digital synthesis

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

APA (6^th Edition):

Spáčil, J. (2019). Komunikační systémy s digitálními modulacemi: Communication Systems with Digital Modulations. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/16972

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):

Spáčil, Jan. “Komunikační systémy s digitálními modulacemi: Communication Systems with Digital Modulations.” 2019. Thesis, Brno University of Technology. Accessed January 15, 2021. http://hdl.handle.net/11012/16972.

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

MLA Handbook (7^th Edition):

Spáčil, Jan. “Komunikační systémy s digitálními modulacemi: Communication Systems with Digital Modulations.” 2019. Web. 15 Jan 2021.

Vancouver:

Spáčil J. Komunikační systémy s digitálními modulacemi: Communication Systems with Digital Modulations. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/11012/16972.

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

Council of Science Editors:

Spáčil J. Komunikační systémy s digitálními modulacemi: Communication Systems with Digital Modulations. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/16972

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

Ohio University

18. Agarwal, Shweta S. QUADRATURE PHASE SHIFT KEYING-DIRECT SEQUENCE SPREAD SPECTRUM-CODE DIVISION MULTIPLE ACCESS WITH DISPARATE QUADRATURE CHIP AND DATA RATES.

Degree: MS, Electrical Engineering & Computer Science (Engineering and Technology), 2006, Ohio University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1134508354

► In this research, a DS-CDMA system with QPSK modulation and multiuser interference is analyzed and simulated. We investigate the BER performance for disparate data… (more)

Subjects/Keywords: Disparate Chip and Data rates; Spread Spectrum; Power Spectrum; Multi-rate Transmission; Multiuser Interference; Quadrature Phase Shift Keying

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APA (6^th Edition):

Agarwal, S. S. (2006). QUADRATURE PHASE SHIFT KEYING-DIRECT SEQUENCE SPREAD SPECTRUM-CODE DIVISION MULTIPLE ACCESS WITH DISPARATE QUADRATURE CHIP AND DATA RATES. (Masters Thesis). Ohio University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1134508354

Chicago Manual of Style (16^th Edition):

Agarwal, Shweta S. “QUADRATURE PHASE SHIFT KEYING-DIRECT SEQUENCE SPREAD SPECTRUM-CODE DIVISION MULTIPLE ACCESS WITH DISPARATE QUADRATURE CHIP AND DATA RATES.” 2006. Masters Thesis, Ohio University. Accessed January 15, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1134508354.

MLA Handbook (7^th Edition):

Agarwal, Shweta S. “QUADRATURE PHASE SHIFT KEYING-DIRECT SEQUENCE SPREAD SPECTRUM-CODE DIVISION MULTIPLE ACCESS WITH DISPARATE QUADRATURE CHIP AND DATA RATES.” 2006. Web. 15 Jan 2021.

Vancouver:

Agarwal SS. QUADRATURE PHASE SHIFT KEYING-DIRECT SEQUENCE SPREAD SPECTRUM-CODE DIVISION MULTIPLE ACCESS WITH DISPARATE QUADRATURE CHIP AND DATA RATES. [Internet] [Masters thesis]. Ohio University; 2006. [cited 2021 Jan 15]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1134508354.

Council of Science Editors:

Agarwal SS. QUADRATURE PHASE SHIFT KEYING-DIRECT SEQUENCE SPREAD SPECTRUM-CODE DIVISION MULTIPLE ACCESS WITH DISPARATE QUADRATURE CHIP AND DATA RATES. [Masters Thesis]. Ohio University; 2006. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1134508354

NSYSU

19. Ye, Xuan-chen. Study on the Applications of Silicon Ring Modulators in High Speed Communication Systems.

Degree: Master, Electro-Optical Engineering, 2016, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0829116-123244

► Due to the advances of modern technologies, the need of high speed operation has been increasing continuously. To pursue faster and higher operation and bandwidth,… (more)

Subjects/Keywords: Ring Modulator; Silicon Photonics; Integrated Circuit; Differential Phase Shift Keying; Nonlinear effect

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

APA (6^th Edition):

Ye, X. (2016). Study on the Applications of Silicon Ring Modulators in High Speed Communication Systems. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0829116-123244

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):

Ye, Xuan-chen. “Study on the Applications of Silicon Ring Modulators in High Speed Communication Systems.” 2016. Thesis, NSYSU. Accessed January 15, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0829116-123244.

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

MLA Handbook (7^th Edition):

Ye, Xuan-chen. “Study on the Applications of Silicon Ring Modulators in High Speed Communication Systems.” 2016. Web. 15 Jan 2021.

Vancouver:

Ye X. Study on the Applications of Silicon Ring Modulators in High Speed Communication Systems. [Internet] [Thesis]. NSYSU; 2016. [cited 2021 Jan 15]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0829116-123244.

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

Council of Science Editors:

Ye X. Study on the Applications of Silicon Ring Modulators in High Speed Communication Systems. [Thesis]. NSYSU; 2016. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0829116-123244

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

Columbia University

20. Li, Qi. Silicon Modulators, Switches and Sub-systems for Optical Interconnect.

Degree: 2016, Columbia University

URL: https://doi.org/10.7916/D8WS8T00

► Silicon photonics is emerging as a promising platform for manufacturing and integrating photonic devices for light generation, modulation, switching and detection. The compatibility with existing… (more)

Subjects/Keywords: Photonics; Phase shift keying; Microelectronics; Optical communications; Silicon – Optical properties; Electrical engineering

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APA (6^th Edition):

Li, Q. (2016). Silicon Modulators, Switches and Sub-systems for Optical Interconnect. (Doctoral Dissertation). Columbia University. Retrieved from https://doi.org/10.7916/D8WS8T00

Chicago Manual of Style (16^th Edition):

Li, Qi. “Silicon Modulators, Switches and Sub-systems for Optical Interconnect.” 2016. Doctoral Dissertation, Columbia University. Accessed January 15, 2021. https://doi.org/10.7916/D8WS8T00.

MLA Handbook (7^th Edition):

Li, Qi. “Silicon Modulators, Switches and Sub-systems for Optical Interconnect.” 2016. Web. 15 Jan 2021.

Vancouver:

Li Q. Silicon Modulators, Switches and Sub-systems for Optical Interconnect. [Internet] [Doctoral dissertation]. Columbia University; 2016. [cited 2021 Jan 15]. Available from: https://doi.org/10.7916/D8WS8T00.

Council of Science Editors:

Li Q. Silicon Modulators, Switches and Sub-systems for Optical Interconnect. [Doctoral Dissertation]. Columbia University; 2016. Available from: https://doi.org/10.7916/D8WS8T00

University of Southern California

21. Zhang, Lin. Silicon integrated devices for optical system applications.

Degree: PhD, Electrical Engineering, 2013, University of Southern California

URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/472729/rec/5860

► This dissertation presents silicon-based integrated micro-resonators and waveguides as the key elements of photonic integrated circuits for on-chip optical communication and signal processing applications.; Electro-optic… (more)

Subjects/Keywords: integrated photonics; silicon; micro-resonator; modulator; phase shift keying; dispersion; slot waveguide; nonlinearity

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APA (6^th Edition):

Zhang, L. (2013). Silicon integrated devices for optical system applications. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/472729/rec/5860

Chicago Manual of Style (16^th Edition):

Zhang, Lin. “Silicon integrated devices for optical system applications.” 2013. Doctoral Dissertation, University of Southern California. Accessed January 15, 2021. http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/472729/rec/5860.

MLA Handbook (7^th Edition):

Zhang, Lin. “Silicon integrated devices for optical system applications.” 2013. Web. 15 Jan 2021.

Vancouver:

Zhang L. Silicon integrated devices for optical system applications. [Internet] [Doctoral dissertation]. University of Southern California; 2013. [cited 2021 Jan 15]. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/472729/rec/5860.

Council of Science Editors:

Zhang L. Silicon integrated devices for optical system applications. [Doctoral Dissertation]. University of Southern California; 2013. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll127/id/472729/rec/5860

Brno University of Technology

22. Juračka, Jan. Komplexní zařazení výukového systému TIMS do výuky: Complex Insertion of Tutorial System TIMS into Education.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/5752

► This work is getting acquainted with the educational systems Tims in detail from Enoma. It describes basic types of analog and digital modulations, spread spektrum… (more)

Subjects/Keywords: TimsBiskit; TutorTIMS; TIMS 301; modulace; amplitudové klíčování; frekvenční klíčování; dvoustavové fázové klíčování; PCM kódování a dekódování; rozprostřené spektrum; DSSS modulace; TimsBiskit; TutorTIMS; TIMS 301; modulation; amplitude shift keying; frequency shift keying; binary phase shift keying; PCM encoding and decoding; spread spektrum; DSSS modulation

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APA (6^th Edition):

Juračka, J. (2019). Komplexní zařazení výukového systému TIMS do výuky: Complex Insertion of Tutorial System TIMS into Education. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/5752

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):

Juračka, Jan. “Komplexní zařazení výukového systému TIMS do výuky: Complex Insertion of Tutorial System TIMS into Education.” 2019. Thesis, Brno University of Technology. Accessed January 15, 2021. http://hdl.handle.net/11012/5752.

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

MLA Handbook (7^th Edition):

Juračka, Jan. “Komplexní zařazení výukového systému TIMS do výuky: Complex Insertion of Tutorial System TIMS into Education.” 2019. Web. 15 Jan 2021.

Vancouver:

Juračka J. Komplexní zařazení výukového systému TIMS do výuky: Complex Insertion of Tutorial System TIMS into Education. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/11012/5752.

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

Council of Science Editors:

Juračka J. Komplexní zařazení výukového systému TIMS do výuky: Complex Insertion of Tutorial System TIMS into Education. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/5752

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

23. Arend, Lionel Jean. On dual-polarization signalling techniques in satellite communications.

Degree: 2015, Université du Luxembourg

URL: http://orbilu.uni.lu/handle/10993/21255

►

In satellite broadcasting and broadband communications, two orthogonal polarizations can be employed for signalling. Typically, two independent carrier signals are transmitted on the horizontal and… (more)

▼

In satellite broadcasting and broadband communications, two orthogonal polarizations can be employed for signalling. Typically, two independent carrier signals are transmitted on the horizontal and vertical linear polarizations. In this way the available frequency spectrum is used twice. Contrary to this independent use, the present work investigates the combined use of both polarizations for signalling and the possibly associated benefits. Two different modulation techniques are investigated. The first, polarization shift keying, modulates the state of polarization of the electromagnetic wave to convey information. It is based on the phase and amplitude relationship between both carriers and is advantageous for channels strongly impaired by phase noise. The second technique defines a four-dimensional signal space for the combined modulation of amplitude and phase on both carriers. It was initially introduced as 4-quadrature signalling and permits transmission with improved power efficiency. Both techniques come from optical fibre communications, where similar propagation conditions exist. The conducted investigation is based on an analysis, simulations and the experimental verification using a specially developed demonstration transmitter and receiver. The simulations compare the power efficiency of the proposed modulation techniques with that of alternatives currently in use and analyse their behaviour upon disturbance by phase noise or non-linear distortion. The demonstrator is used to validate the findings in experimental measurements and to confirm the feasibility of both proposed techniques through a live satellite transmission.

En télédiffusion et dans les télécommunications à haut débit par satellite, deux polarisations orthogonales peuvent être employées pour la transmission. Habituellement, deux porteuses indépendantes sont transmises sur les polarisations linéaires horizontale et verticale. Cela rend possible une double exploitation des gammes de fréquences disponibles. Contrairement à une telle utilisation indépendante, le présent travail étudie l’utilisation combinée de ces deux polarisations pour les télécommunications ainsi que les éventuels avantages associés. Deux techniques de modulations sont soumises à l’examen : la première est la modulation de polarisation. Elle se sert de l’état de polarisation de l’onde électromagnétique pour transporter de l’information. Elle se base ainsi sur les relations de phase et d’amplitude entre les deux porteuses et se montre particulièrement avantageuse pour les canaux fortement dégradés par du bruit de phase. La seconde technique définit un espace quadridimensionnel dans lequel la modulation d’amplitude et de phase des deux porteuses est effectuée de façon conjointe. Nommée modulation 4-quadratures, elle permet une transmission avec une efficacité énergétique élevée. Ces deux techniques ont pour origine le domaine des télécommunications par fibre optique, pour lequel les conditions de propagation sont similaires. L’étude s’appuie sur une analyse préalable, des…

Advisors/Committee Members: Fonds National de la Recherche - FnR [sponsor], Marso, Michel [superviser], Engel, Thomas [president of the jury], Krause, Jens [member of the jury], Horlin, François [member of the jury], Oestges, Claude [member of the jury], Sperber, Ray [member of the jury].

Subjects/Keywords: satellite communications; polarization; modulation; polarization shift keying; four-dimensional; four quadrature; symbol error rate; Engineering, computing & technology :: Electrical & electronics engineering [C06]; Ingénierie, informatique & technologie :: Ingénierie électrique & électronique [C06]

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APA (6^th Edition):

Arend, L. J. (2015). On dual-polarization signalling techniques in satellite communications. (Doctoral Dissertation). Université du Luxembourg. Retrieved from http://orbilu.uni.lu/handle/10993/21255

Chicago Manual of Style (16^th Edition):

Arend, Lionel Jean. “On dual-polarization signalling techniques in satellite communications.” 2015. Doctoral Dissertation, Université du Luxembourg. Accessed January 15, 2021. http://orbilu.uni.lu/handle/10993/21255.

MLA Handbook (7^th Edition):

Arend, Lionel Jean. “On dual-polarization signalling techniques in satellite communications.” 2015. Web. 15 Jan 2021.

Vancouver:

Arend LJ. On dual-polarization signalling techniques in satellite communications. [Internet] [Doctoral dissertation]. Université du Luxembourg; 2015. [cited 2021 Jan 15]. Available from: http://orbilu.uni.lu/handle/10993/21255.

Council of Science Editors:

Arend LJ. On dual-polarization signalling techniques in satellite communications. [Doctoral Dissertation]. Université du Luxembourg; 2015. Available from: http://orbilu.uni.lu/handle/10993/21255

Simon Fraser University

24. Carbo, Xavier. Tracking and diversity for a mobile communications base station array antenna.

Degree: 1995, Simon Fraser University

URL: http://summit.sfu.ca/item/7965

Subjects/Keywords: Phased array antennas.; Mobile communication systems.; Phase shift keying.

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APA (6^th Edition):

Carbo, X. (1995). Tracking and diversity for a mobile communications base station array antenna. (Thesis). Simon Fraser University. Retrieved from http://summit.sfu.ca/item/7965

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):

Carbo, Xavier. “Tracking and diversity for a mobile communications base station array antenna.” 1995. Thesis, Simon Fraser University. Accessed January 15, 2021. http://summit.sfu.ca/item/7965.

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

MLA Handbook (7^th Edition):

Carbo, Xavier. “Tracking and diversity for a mobile communications base station array antenna.” 1995. Web. 15 Jan 2021.

Vancouver:

Carbo X. Tracking and diversity for a mobile communications base station array antenna. [Internet] [Thesis]. Simon Fraser University; 1995. [cited 2021 Jan 15]. Available from: http://summit.sfu.ca/item/7965.

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

Council of Science Editors:

Carbo X. Tracking and diversity for a mobile communications base station array antenna. [Thesis]. Simon Fraser University; 1995. Available from: http://summit.sfu.ca/item/7965

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

25. Petrou, Constantinos. Μελέτη αλγόριθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης.

Degree: 2010, University of Patras; Πανεπιστήμιο Πατρών

URL: http://hdl.handle.net/10442/hedi/27980

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The scope of this dissertation is to investigate the merits and implications of using multilevel modulation formats in optical communications systems. Following the trend in… (more)

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The scope of this dissertation is to investigate the merits and implications of using multilevel modulation formats in optical communications systems. Following the trend in academia and industry, special focus is placed on quadrature phase-shift keying (QPSK), and specifically on polarization division multiplexed (PDM) QPSK. A special kind of receiver is investigated thoroughly, the digital coherent receiver, the equivalent of the coherent quadrature demodulator in classical communications nomenclature. A large number of digital signal processing (DSP) algorithms are implemented, some of them novel, and their performance is examined, analyzed, and compared in a number of practical system scenarios. The impact of transmitter/receiver imperfections and a number of optical fiber impairments on system performance is studied. Experimental results taken from proof-of-concept experiments are also analyzed.

Η διατριβή αυτή έχει ως σκοπό τη μελέτη οπτικών τηλεπικοινωνιακών συστημάτων που χρησιμοποιούν τετραδικές διαμορφώσεις φάσης, πολυπλεξία κατά πόλωση και σύμφωνους ψηφιακούς δέκτες διαφοροποίησης φάσης και πόλωσης. Μελετήθηκαν αλγόριθμοι επεξεργασίας σήματος κατάλληλοι για εξάλειψη της επίδρασης των φαινομένων διάδοσης και των μη ιδανικοτήτων οπτικών τηλεπικοινωνιακών συστημάτων. Η μελέτη έγινε με προσομοίωση Monte-Carlo, με χρήση ημιαναλυτικής μεθόδου προσδιορισμού της πιθανότητας σφάλματος τηλεπικοινωνιακού συστήματος και με ανάλυση πειραματικών δεδομένων. Τα πειραματικά δεδομένα ελήφθησαν από οπτικό τηλεπικοινωνιακό σύστημα με τετραδική διαμόρφωση φάσης και πολυπλεξία κατά πόλωση με ρυθμούς συμβόλων 0.1-10 GBd (0.4-40 Gb/s). Μελετήθηκαν αλγόριθμοι επανένωσης των πολώσεων, αλγόριθμοι αποπολύπλεξης των πολώσεων, αλγόριθμοι διόρθωσης της ανισοσταθμίας ορθογωνιότητας, αλγόριθμοι εκτίμησης και αφαίρεσης της ενδιάμεσης συχνότητας και αλγόριθμοι εκτίμησης και αφαίρεσης του θορύβου φάσης των laser.

Subjects/Keywords: Οπτικές τηλεπικοινωνίες; Πόλωση; Τετραδικές διαμορφώσεις φάσης; Πολυπλεξία κατά πόλωση; Σύμφωνοι οπτικοί δέκτες διαφοροποίησης φάσης και πόλωσης; Αλγόριθμοι επεξεργασίας σήματος; Optical fiber communications; Polarization; Quadrature phase shift keying; Polarization division multiplexing; Optical coherent phase-and polarization-diversity receivers; Signal processing algorithms

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APA (6^th Edition):

Petrou, C. (2010). Μελέτη αλγόριθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης. (Thesis). University of Patras; Πανεπιστήμιο Πατρών. Retrieved from http://hdl.handle.net/10442/hedi/27980

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):

Petrou, Constantinos. “Μελέτη αλγόριθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης.” 2010. Thesis, University of Patras; Πανεπιστήμιο Πατρών. Accessed January 15, 2021. http://hdl.handle.net/10442/hedi/27980.

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

MLA Handbook (7^th Edition):

Petrou, Constantinos. “Μελέτη αλγόριθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης.” 2010. Web. 15 Jan 2021.

Vancouver:

Petrou C. Μελέτη αλγόριθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης. [Internet] [Thesis]. University of Patras; Πανεπιστήμιο Πατρών; 2010. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/10442/hedi/27980.

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

Council of Science Editors:

Petrou C. Μελέτη αλγόριθμων ψηφιακής επεξεργασίας σήματος για ομόδυνο δέκτη QPSK σε οπτικά συστήματα μεγάλων αποστάσεων υψηλής φασματικής απόδοσης. [Thesis]. University of Patras; Πανεπιστήμιο Πατρών; 2010. Available from: http://hdl.handle.net/10442/hedi/27980

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

Texas A&M University

26. Han, Jae Choong. Optimum decoding of TCM in the presence of phase errors.

Degree: MS, electrical engineering, 2012, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-1990-THESIS-H233

Subjects/Keywords: electrical engineering.; Major electrical engineering.; Modulation (Electronics); Phase shift keying.; Coding theory.

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

APA (6^th Edition):

Han, J. C. (2012). Optimum decoding of TCM in the presence of phase errors. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1990-THESIS-H233

Chicago Manual of Style (16^th Edition):

Han, Jae Choong. “Optimum decoding of TCM in the presence of phase errors.” 2012. Masters Thesis, Texas A&M University. Accessed January 15, 2021. http://hdl.handle.net/1969.1/ETD-TAMU-1990-THESIS-H233.

MLA Handbook (7^th Edition):

Han, Jae Choong. “Optimum decoding of TCM in the presence of phase errors.” 2012. Web. 15 Jan 2021.

Vancouver:

Han JC. Optimum decoding of TCM in the presence of phase errors. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2021 Jan 15]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1990-THESIS-H233.

Council of Science Editors:

Han JC. Optimum decoding of TCM in the presence of phase errors. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1990-THESIS-H233

27. MEHRAN MOHAMMADI IZAD. LOW-POWER FREQUENCY SYNTHESIS BASED ON INJECTION LOCKING.

Degree: 2011, National University of Singapore

URL: http://scholarbank.nus.edu.sg/handle/10635/32865

Subjects/Keywords: Injection locked oscillator; pulse shaping; spur; phase shift keying; digital power amplifier

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

APA (6^th Edition):

IZAD, M. M. (2011). LOW-POWER FREQUENCY SYNTHESIS BASED ON INJECTION LOCKING. (Thesis). National University of Singapore. Retrieved from http://scholarbank.nus.edu.sg/handle/10635/32865

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):

IZAD, MEHRAN MOHAMMADI. “LOW-POWER FREQUENCY SYNTHESIS BASED ON INJECTION LOCKING.” 2011. Thesis, National University of Singapore. Accessed January 15, 2021. http://scholarbank.nus.edu.sg/handle/10635/32865.

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

MLA Handbook (7^th Edition):

IZAD, MEHRAN MOHAMMADI. “LOW-POWER FREQUENCY SYNTHESIS BASED ON INJECTION LOCKING.” 2011. Web. 15 Jan 2021.

Vancouver:

IZAD MM. LOW-POWER FREQUENCY SYNTHESIS BASED ON INJECTION LOCKING. [Internet] [Thesis]. National University of Singapore; 2011. [cited 2021 Jan 15]. Available from: http://scholarbank.nus.edu.sg/handle/10635/32865.

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

Council of Science Editors:

IZAD MM. LOW-POWER FREQUENCY SYNTHESIS BASED ON INJECTION LOCKING. [Thesis]. National University of Singapore; 2011. Available from: http://scholarbank.nus.edu.sg/handle/10635/32865

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

Universidade Nova

28. Pinto, João Pedro Costa. Quadrature generators based on ring oscillators and shift registers.

Degree: 2016, Universidade Nova

URL: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/16379

► Quadrature oscillators are key elements in modern radio frequency (RF) transceivers and very useful nowadays in wireless communications, since they can provide: low quadrature error,… (more)

Subjects/Keywords: Local oscillator; Quadrature oscillator; Multiphase generator; Shift register; Phase error; Phase-noise; Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática

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

APA (6^th Edition):

Pinto, J. P. C. (2016). Quadrature generators based on ring oscillators and shift registers. (Thesis). Universidade Nova. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/16379

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):

Pinto, João Pedro Costa. “Quadrature generators based on ring oscillators and shift registers.” 2016. Thesis, Universidade Nova. Accessed January 15, 2021. http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/16379.

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

MLA Handbook (7^th Edition):

Pinto, João Pedro Costa. “Quadrature generators based on ring oscillators and shift registers.” 2016. Web. 15 Jan 2021.

Vancouver:

Pinto JPC. Quadrature generators based on ring oscillators and shift registers. [Internet] [Thesis]. Universidade Nova; 2016. [cited 2021 Jan 15]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/16379.

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

Council of Science Editors:

Pinto JPC. Quadrature generators based on ring oscillators and shift registers. [Thesis]. Universidade Nova; 2016. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/16379

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

Ohio University

29. Rodenbaugh, John Irvin. Optimum detection of differentially-encoded M-ary phase-shift keying in a dispersive aeronautical channel.

Degree: MS, Electrical Engineering & Computer Science (Engineering and Technology), 2002, Ohio University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1174934375

Optimum detection of differentially-encoded M-ary phase-shift keying in a dispersive aeronautical channel. Advisors/Committee Members: Matolak, David (Advisor).

Subjects/Keywords: Optimum Detection; Differentially-Encoded Keying; M-ary Phase-Shift Keying; Dispersive Channel; Aeronautical Channel

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APA (6^th Edition):

Rodenbaugh, J. I. (2002). Optimum detection of differentially-encoded M-ary phase-shift keying in a dispersive aeronautical channel. (Masters Thesis). Ohio University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1174934375

Chicago Manual of Style (16^th Edition):

Rodenbaugh, John Irvin. “Optimum detection of differentially-encoded M-ary phase-shift keying in a dispersive aeronautical channel.” 2002. Masters Thesis, Ohio University. Accessed January 15, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1174934375.

MLA Handbook (7^th Edition):

Rodenbaugh, John Irvin. “Optimum detection of differentially-encoded M-ary phase-shift keying in a dispersive aeronautical channel.” 2002. Web. 15 Jan 2021.

Vancouver:

Rodenbaugh JI. Optimum detection of differentially-encoded M-ary phase-shift keying in a dispersive aeronautical channel. [Internet] [Masters thesis]. Ohio University; 2002. [cited 2021 Jan 15]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1174934375.

Council of Science Editors:

Rodenbaugh JI. Optimum detection of differentially-encoded M-ary phase-shift keying in a dispersive aeronautical channel. [Masters Thesis]. Ohio University; 2002. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1174934375

30. Geitner, Mickaël. Température effective d'un système hors équilibre : fluctuations thermiques d'un microlevier soumis à un flux de chaleur : Effective temperature of an out of equilibirum system : thermal fluctuations of a strongly heated cantilever.

Degree: Docteur es, Physique, 2015, Lyon, École normale supérieure

URL: http://www.theses.fr/2015ENSL1026

►

A l’aide d’un interféromètre différentiel à quadrature de phase nous mesurons les fluctuations thermiques de la déflexion d’un micro-levier. Il est alors possible de déduire… (more)

▼

A l’aide d’un interféromètre différentiel à quadrature de phase nous mesurons les fluctuations thermiques de la déflexion d’un micro-levier. Il est alors possible de déduire différentes propriétés mécaniques du levier telles que raideur, fréquences de résonance, facteurs de qualité etc. Dans un tel système, la précision maximale sur les mesures est limitée par le bruit de grenaille des photodiodes (shot-noise). Afin d’augmenter le rapport signal sur bruit, nous augmentons l’intensité lumineuse du laser de mesure, diminuant ainsi le bruit de fond des spectres de fluctuations thermique. En revanche, l’augmentation de l’intensité du laser a pour effet de décaler vers les basses fréquences les résonances du levier. Une première partie de ce travail de thèse a pour objectif la compréhension de ce phénomène. Ainsi, nous associons le décalage en fréquence à un échauffement du levier par le laser de l’interféromètre et au flux de chaleur associé le long du levier. Nous développons alors un modèle permettant de relier cet effet à la température de l’extrémité du levier en se basant sur un profil de température linéaire. Une seconde partie de ce travail vise à mesurer la température effective d’un levier à l’aide d’une extension du théorème fluctuation-dissipation. Nous montrons que les fluctuations de ce système hors équilibre sont plus faibles que celles attendues compte tenu du profil de température. Nous cherchons alors à identifier l’origine de ce déficit de fluctuations. Dans une dernière partie nous estimons les profils de température sur des leviers en faisant varier leurs paramètres géométriques ou leur coefficient d’absorption, ainsi que la position du laser chauffant le levier.

Thanks to a home made quadrature phase differential interferometer, we measure the thermal fluctuations ofa cantilever. It is then possible to infer various mechanical properties such as eigenfrequencies, stiffness,quality factor, etc. In such system, the maximal precision on the measure is limited by the shotnoise of thephotodiodes. To increase the signal-noise ratio we raise the light intensity of the laser, lowering thebackground noise. Doing so, the cantilever eigen frequencies shifts to lower values. A fisrt part of this thesiswork has for objective the understanding of this phenomenon. Thus, we associate this frequency shift with aheating of the cantilever by the laser. We develop a model linking this effect to the temperature at the freeend of the cantilever assuming a linear temperature profile.A second part of this thesis leads us to estimate the effective temperature of a cantilever using thefluctuation-dissipation theorem. We show that the fluctuations of our out of equilibrium system are lower thanthe fluctuations expected at equilibrium.In the last part, we estimate the temperature profiles on cantilevers by varying their geometry, absorptioncoefficient and laser position.

Advisors/Committee Members: Bellon, Ludovic (thesis director).

Subjects/Keywords: AFM; Bruit thermique; Interféromètre; Quadrature de phase; Profil de température; Décalage en fréquence; Température effective; Hors équilibre; Fluctuations thermiques; AFM; Thermal noise; Interferometry; Quadrature-phase; Temperature profile; Frequency shift; Effective temperature; Out of equilibrium; Thermal fluctuations

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

APA (6^th Edition):

Geitner, M. (2015). Température effective d'un système hors équilibre : fluctuations thermiques d'un microlevier soumis à un flux de chaleur : Effective temperature of an out of equilibirum system : thermal fluctuations of a strongly heated cantilever. (Doctoral Dissertation). Lyon, École normale supérieure. Retrieved from http://www.theses.fr/2015ENSL1026

Chicago Manual of Style (16^th Edition):

Geitner, Mickaël. “Température effective d'un système hors équilibre : fluctuations thermiques d'un microlevier soumis à un flux de chaleur : Effective temperature of an out of equilibirum system : thermal fluctuations of a strongly heated cantilever.” 2015. Doctoral Dissertation, Lyon, École normale supérieure. Accessed January 15, 2021. http://www.theses.fr/2015ENSL1026.

MLA Handbook (7^th Edition):

Geitner, Mickaël. “Température effective d'un système hors équilibre : fluctuations thermiques d'un microlevier soumis à un flux de chaleur : Effective temperature of an out of equilibirum system : thermal fluctuations of a strongly heated cantilever.” 2015. Web. 15 Jan 2021.

Vancouver:

Geitner M. Température effective d'un système hors équilibre : fluctuations thermiques d'un microlevier soumis à un flux de chaleur : Effective temperature of an out of equilibirum system : thermal fluctuations of a strongly heated cantilever. [Internet] [Doctoral dissertation]. Lyon, École normale supérieure; 2015. [cited 2021 Jan 15]. Available from: http://www.theses.fr/2015ENSL1026.

Council of Science Editors:

Geitner M. Température effective d'un système hors équilibre : fluctuations thermiques d'un microlevier soumis à un flux de chaleur : Effective temperature of an out of equilibirum system : thermal fluctuations of a strongly heated cantilever. [Doctoral Dissertation]. Lyon, École normale supérieure; 2015. Available from: http://www.theses.fr/2015ENSL1026

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Open Access Theses and Dissertations