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Rozprawy doktorskie na temat „Fading”

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Data publikacji: 4 czerwca 2021
Data aktualizacji: 25 lipca 2025

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1

Hernandez, Jose H. "Digital communications over non-fading and fading channels." Thesis, Monterey, Calif. : Naval Postgraduate School, 2008. http://edocs.nps.edu/npspubs/scholarly/theses/2008/Sept/08Sep%5FHernandez.pdf.

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Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, September 2008.<br>Thesis Advisor(s): Robertson, Clark R. "September 2008." Description based on title screen as viewed on November 5, 2008. Includes bibliographical references (p. 75). Also available in print.
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2

Middleton, Neil 1977. "Fading points." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81476.

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Fading Points is a piece of music for large wind ensemble. The work is concerned with time perception and is designed to convey to the listener a long temporal progression from slow music to fast music. To this end, the work is written using musical gestures specifically designed for their portrayal of musical time. The work consists of four sections, each of which is described in detail in the analytical part of the thesis. The analysis also describes the rhythmic language, which is created around short rhythmic cells. These cells are based on ratios and are used in all levels of the p
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3

Shang, Lei, and lei shang@ieee org. "Modelling of Mobile Fading Channels with Fading Mitigation Techniques." RMIT University. Electrical and Computer Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20061222.113303.

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This thesis aims to contribute to the developments of wireless communication systems. The work generally consists of three parts: the first part is a discussion on general digital communication systems, the second part focuses on wireless channel modelling and fading mitigation techniques, and in the third part we discuss the possible application of advanced digital signal processing, especially time-frequency representation and blind source separation, to wireless communication systems. The first part considers general digital communication systems which will be incorporated i
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4

Choi, Seung-Ho. "Severely Fading MIMO Channels." Thesis, University of Canterbury. Electrical and Computer Engineering, 2007. http://hdl.handle.net/10092/1190.

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In most wireless communications research, the channel models considered experience less severe fading than the classic Rayleigh fading case. In this thesis, however, we investigate MIMO channels where the fading is more severe. In these environments, we show that the coefficient of variation of the channel amplitudes is a good predictor of the link mutual information, for a variety of models. We propose a novel channel model for severely fading channels based on the complex multivariate t distribution. For this model, we are able to compute exact results for the ergodic mutual information and
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5

Felber, Werner, and Thomas Reuster. "The Fading of Psychosis." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-134488.

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Felber, Werner, and Thomas Reuster. "The Fading of Psychosis." Karger, 2001. https://tud.qucosa.de/id/qucosa%3A27570.

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7

吳萬雄 and Man-hung Ng. "Bandwidth-efficient pilot-symbol-aided techniques for fading estimation in multipath fading channels." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31242212.

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8

Ng, Man-hung. "Bandwidth-efficient pilot-symbol-aided techniques for fading estimation in multipath fading channels." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22582174.

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9

Caine, Michael Andrew. "Fading of carbonless copying paper." Thesis, University of Central Lancashire, 1990. http://clok.uclan.ac.uk/20342/.

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The reactions of crystal violet lactone (CVL) (1) and carbazolyl blue (S-RB) (2) were studied on the acid activated clay Fulacolor. The colourless leuco dye CVL (1) undergoes lactone cleavage, when adsorbed on Fulacolor, to give a blue zwitterion. CVL (1) was also shown to adsorb as the unchanged lactone which could be photochemically ring opened. The zwitterion could be displaced readily by water vapour. When a high surface acidity was kept, the zwitterion was more resistant to displacement, the humidity and any exchanged cations being important factors. Prolonged exposure to light causes fad
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10

Huang, Guojun. "Signal fading on microwave links." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq21089.pdf.

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11

Raison, Philippe. "Le processus psychique du fading." Paris 7, 2008. http://www.theses.fr/2008PA070047.

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En certaines occurrences liées à la pathologie, maintenir un certain quantum d'excitation à l'intérieur de l'appareil psychique semble impossible. Ce sont ces circonstances que nous tentons de relever, au travers de ce phénomène particulier qu'est le fading. Ce processus psychique est référé à l'inhibition, l'acte et la discordance D'un point de vue psychanalytique, nous remarquons, en séance, que repérer son image dans (l'image de) l'autre échoue. Nous décrivons également, phénoménologiquement (à partir notamment de la notion de "synthèse passive") comment le patient est bien en deçà de toute
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12

Johansson, Gustav. "Concreteness fading for teaching programming." Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-17372.

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This dissertation presents a study that explores a specific implementation of concreteness fading used in a serious game that teaches programming. Concreteness fading consists of first presenting concepts with concrete representations before swapping them gradually with their concrete, normal counterparts. The goal is to figure out how concreteness fading should be applied to a programming game to have it increase learning. Expert interviews are performed to discuss different aspects of how the technique is utilized in the game Reduct. Participants also play through the game before discussing
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13

Springer, Michael Leicester. ""Form fading among fading forms" death, language and madness in the novels of Samuel Beckett." Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1002240.

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The primary thesis of this dissertation is that the development of narrative strategy and technique through the course of Samuel Beckett’s fictional oeuvre enacts a parody of the Cartesian method of doubt, in which the search for first principles, instead of providing grounds for certainty, is a hopeless, grotesque quest for a self which eludes any and every assertion. My chief concerns are thus, firstly, to explicate and elucidate the nature of such narrative strategies and techniques, and how these can be said to parody epistemological procedure; and secondly, to interrogate the implications
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14

Chakraborty, Kaushik. "Reliable communication over optical fading channels." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/2855.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2005.<br>Thesis research directed by: Electrical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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15

Kim, Thanh Tùng. "Quantized Feedback for Slow Fading Channels." Licentiate thesis, KTH, School of Electrical Engineering (EES), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3952.

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<p>Two topics in fading channels with a strict delay constraint and a resolution-constrained feedback link are treated in this thesis.</p><p>First, a multi-layer variable-rate single-antenna communication system with quantized feedback, where the expected rate is chosen as the performance measure, is studied under both short-term and long-term power constraints. Iterative algorithms exploiting results in the literature of parallel broadcast channels are developed to design the system parameters. A necessary and sufficient condition for single-layer coding to be optimal is derived. In contrast
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16

Tan, Christopher Chiu-Hur. "On Markov modeling of fading channels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0004/MQ28259.pdf.

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17

Kerr, Ronald W. "Convolutional ring codes for fading channels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ32751.pdf.

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18

Cheng, Cuifen. "A Nakagami-m fading channel simulator." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq55894.pdf.

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19

Kim, Thanh Tùng. "Quantized feedback for slow fading channels /." Stockholm : Communication Theory Laboratory, School of Electrical Engineering, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3952.

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20

Menemenlis, Nickie. "Stochastic models for multipath fading channels." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=38505.

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The main contribution of this work is to extend the present multi-path fading channel (MFC) models in two directions.<br>First, the wireless communication system is viewed as a dynamical system where the channel constitutes the main plant of such a system. The random variables characterizing the magnitude of each multi-path component are generalized to random processes with time-varying statistics. It is claimed that the dynamics of both the log-normal shadowing and short-term fading channels is captured by the use of stochastic diffusion processes which emerge from mean-reverting Ornstein-Uhl
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21

Beirouti, Patrick. "Automatic repeat request on fading channels." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61226.

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Automatic repeat request (ARQ) is a widespread technique for error control in data communication systems. This research examines the performance of conventional ARQ schemes over fading channels. The basic Gilbert-Elliott two-state Markov model is used to represent these channels. This basic model is recursively extended to a 2$ sp{n}$-state Markov chain suitable for n-bit block codes. Using this 'Extended Gilbert-Elliot' model, an approximation of the throughput efficiency of the conventional ARQ schemes is derived. This approximation is particularly valid for slow fading channels. Furthermore
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22

Baas, Nicholas J. "Decomposition of Rayleigh Fading dispersive channels." Thesis, University of Canterbury. Electrical and Electronic Engineering, 2001. http://hdl.handle.net/10092/5448.

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This thesis identifies, develops and applies methods for the decomposition of fading dispersive channels. Such channels arise in wireless communication as a result of multipath and relative motion of the transmitter, scatterers and receiver. The decompositions considered are the f-power series and Karhunen-Loève (KL) expansions. For the KL expansion generalisations to rapid time variation are possible with the separate options of single spread and double spread decomposition. The single spread decomposition involves a model of the instantaneous channel transfer function with time variation sup
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23

Leon, Wing Seng. "Equalization and estimation for fading channels." Thesis, University of Canterbury. Electrical and Electronic Engineering, 2003. http://hdl.handle.net/10092/6039.

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The main contribution of this thesis is the development of high performing, reduced complexity receivers for fading channels. Three different receiver structures are proposed and they operate without the need of any channel statistics. First, a double filtering receiver for systems employing DPSK modulation on channels with small delay and Doppler spreads is presented. BER performance results obtained via simulations and analysis show that the proposed structure outperforms the conventional matched filtering DPSK detector. Second, a polynomial predictor based sequence detector for flat-fading
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24

van, Nobelen Robert. "Coding for the Rayleigh fading channel." Thesis, University of Canterbury. Electrical and Electronic Engineering, 1996. http://hdl.handle.net/10092/6060.

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The problem of effective coding for the Rayleigh fading channel is addressed. A signal transmitted over the Rayleigh fading channel experiences quasi-periodic deep fades in the signal amplitude, and random phase shifts. The fades in signal amplitude are the cause of error events and limit the bit error rate of an uncoded system to about 10-4 at a signal-to-noise ratio of 30 dB. For applications where a lower error rate is desired, more sophisticated methods of transmission and detection are required. We present an extensive generalised analysis of the probability of error of maximum likelihoo
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25

Brown, Colin. "Reduced complexity equalisation for fading channels." Thesis, University of York, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251806.

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26

Hinton, Danielle A. (Danielle Ayodele) 1978. "Turbo coding in correlated fading channels." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/87214.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.<br>Includes bibliographical references (leaves 46-47).<br>by Danielle A. Hinton.<br>M.Eng.
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27

Yeh, Edmund Meng 1971. "Multiaccess and fading in communication networks." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/16789.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.<br>Includes bibliographical references (p. 159-163).<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Two fundamental issues in the design of wireless communication networks are the interference among multiple users and the time-varying nature of the fading wireless channel. We apply fundamental techniques in information theory and queueing theory to gain insights into the stru
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28

Abou, Faycal Ibrahim C. (Ibrahim Chafik). "Reliable communication over Rayleigh fading channels." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10648.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.<br>Includes bibliographical references (p. 73-74).<br>by Ibrahim C. Abou Faycal.<br>M.S.
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29

Asyhari, Agustian Taufiq. "Nearest neighbour decoding for fading channels." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610448.

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30

Jefferis, Robert. "IN-SERVICE DETECTION OF MULTIPATH FADING." International Foundation for Telemetering, 2002. http://hdl.handle.net/10150/605607.

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International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, California<br>Multipath (MP) fading is the dominant channel impairment in many aeronautical telemetry links. One product of a recent multipath mitigation study is the discovery of a simple technique for detecting its presence over a useful range of conditions. The technique also detects significant random noise levels in the channel. This paper describes the “Signal Degradation Indicator” (SDI) and its application to FQPSK-B and SOQPSK [2] modulation. Laboratory em
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31

Shukla, Parveen Kumar. "Adaptive equalization of fading radio channels." Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47660.

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32

Kaltakis, D. "Fundamental limits of GCMAC with fading." Thesis, University of Surrey, 2009. http://epubs.surrey.ac.uk/843695/.

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The scientific field of information theory provides a mathematical framework which aims to quantify the maximum achievable data rate over a communication channel. The underlying mathematical concepts to predict the capacity of a single communication link were developed by Shannon more than half a century ago. The first important attempt to study the capacity of a cellular system was carried out in the last decade. That work by Wyner introduced the concept of Base Station co-operation. The available information theoretic findings are not directly usable to provide realistic estimates for the ca
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33

Coronel, Pedro E. "Diversity-multiplexing tradeoff in selective-fading channels /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17896.

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34

Ponce, Testino Ramón. "Ethical Fading and Biased Assessments of Fairness." Thesis, Linköping University, Centre for Applied Ethics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-9757.

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<p>In this thesis I present and discuss the phenomenon of ethical fading, and its association with biased assessment of a fair action. Ethical fading is an intuitive, self-deceptive, unconscious mechanism by which even morally competent agents are lead to disregard the ethical consequences of a particular choice. In engaging in this psychological mechanism, I argue, agents are also presupposing a biased assessment of entitlement. This biased assessment of fairness is intentionally dubious, and to be found in decision frames and reinforced by contexts. In the final part of the work I present an
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35

Li, Xin. "State space estimation of wireless fading channels." Thesis, University of Ottawa (Canada), 2002. http://hdl.handle.net/10393/6096.

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This thesis presents a state space approach to optimal estimation of channel processes, such as inphase, quadrature, square envelope, phase, etc., of wireless fading channels. The models are derived from the Doppler power spectral density using factorization and realization techniques. Several simulations are performed when the channel is Rayleigh and Ricean distributed under both flat and frequency-selective fading assumptions. The simulation studies illustrate the tracking properties of the inphase, quadrature and square envelope estimators for various received signal-to-noise ratios.
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36

Pokorska, Joanna. "Relationship fading in business-to-consumer context." Thesis, Aston University, 2016. http://publications.aston.ac.uk/28879/.

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The objective of this thesis is to develop a better understanding of the relationship fading phenomenon in business-to-consumer context. Fading relates to a gradual decline in consumer’s willingness to continue a relationship with a company. Therefore, understanding the fading process may help to elucidate the ‘unexplained’ relationship dissolution and customer defection. Led by an assumption that a relationship between a consumer and a brand is like the one between individuals, the thesis proposes that the trajectory of relationship fading reflects the disaffection processes similar to the on
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37

Zhou, Bin. "Mobile velocity estimation in multipath fading channels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0005/MQ42710.pdf.

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38

Bradley, Martin James. "Adaptive equalisation for fading digital communication channels." Thesis, Durham University, 1996. http://etheses.dur.ac.uk/5177/.

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This thesis considers the design of new adaptive equalisers for fading digital communication channels. The role of equalisation is discussed in the context of the functions of a digital radio communication system and both conventional and more recent novel equaliser designs are described. The application of recurrent neural networks to the problem of equalisation is developed from a theoretical study of a single node structure to the design of multinode structures. These neural networks are shown to cancel intersymbol interference in a manner mimicking conventional techniques and simulations d
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39

Ibanez, Marc B. (Marc Benedict). "Cellular power control in a fading environment." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/11297.

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40

Lei, Qiang, and Michael Rice. "Iterative Equalization for SOQPSK in Multipath Fading." International Foundation for Telemetering, 2008. http://hdl.handle.net/10150/606195.

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ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California<br>This paper investigates the application of iterative equalization techniques to overcome multipath fading for shaped offset QPSK (SOQPSK) in aeronautical telemetry. Two iterative equalization techniques for turbo encoded SOQPSK are presented. The first is the optimal-MAP turbo equalizer for OQPSK. The second equalizer is the adaptive decision feedback equalizer. Simulation shows
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41

Rice, Michael, and Eugene Law. "AERONAUTICAL TELEMETRY FADING SOURCES AT TEST RANGES." International Foundation for Telemetering, 1997. http://hdl.handle.net/10150/609809.

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International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>This paper describes the two main causes of fading encountered at test ranges. The first cause of fading results from nulls in the transmit antenna gain pattern. Variations in the received signal level are a result of changes in the gain pattern as the spatial relationship between transmitter and receiver change. The second cause of fading is due to multipath interference. This occurs when multiple copies of the transmitted signal with different delays arrive at t
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42

Mohanty, Nirode. "Phase Tracking Error in a Fading Channel." International Foundation for Telemetering, 1987. http://hdl.handle.net/10150/615322.

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International Telemetering Conference Proceedings / October 26-29, 1987 / Town and Country Hotel, San Diego, California<br>The phase tracking error of the reception of a QPSK signal transmitted in a severe fading environment is derived. The phase estimate derived from the phase lock loop (PLL) will be used by a binary phase shift keying (BPSK) receiver for the recovery of the data. The resultant probability of bit error is analyzed, and is shoen to be significantly improved when the phase of the transmitted signal is tracked by a PLL separately and utilized in the coherent detection.
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43

Ketcham, Richard. "Characterization and Mitigation of Hyper-Rayleigh Fading." ScholarWorks @ UVM, 2007. http://scholarworks.uvm.edu/graddis/121.

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Due to the unprecedented spatial and temporal resolution they offer, wireless sensor networks are considered an enabling technology for the distributed monitoring of industrial, military, and natural environments. As these systems migrate into vastly different and novel applications, new constraints are discovered that affect network reliability and utility. For example, wireless sensors are typically statically deployed and, unlike mobile systems, cannot move to a new location for better radio reception. As a result, the signal fades caused by non-optimal environmental conditions can increase
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44

Kowalski, Shelley. "Fading light : the case of Doris Ulmann /." view abstract or download file of text, 2000. http://wwwlib.umi.com/cr/uoregon/fullcit?p9977907.

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Thesis (Ph. D.)--University of Oregon, 2000.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 232-242). Also available for download via the World Wide Web; free to University of Oregon users. Address: http://wwwlib.umi.com/cr/uoregon/fullcit?p9977907.
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45

Kauffman, Amy Lynne. "Stimulus fading within check-in/check-out." Thesis, University of Oregon, 2008. http://hdl.handle.net/1794/8580.

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xi, 111 p. ; ill. (some col.) A print copy of this title is available through the UO Libraries. Search the library catalog for the location and call number.<br>To address the growing academic and social needs of students, schools must utilize efficient and effective methods of behavior support. Targeted interventions support students who are at-risk for developing more severe problem behaviors. These interventions are implemented similarly across a group of students, and thus serve as an efficient and cost effective method of behavior support. Check in Check out (CICO) is a targeted group inte
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46

COLUCCIA, GIULIO. "Optimum Receiver Design for MIMO Fading Channels." Doctoral thesis, Politecnico di Torino, 2008. http://hdl.handle.net/11583/2502249.

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This thesis describes the analytical design and the performance analysis of optimum receivers for Multiple Input - Multiple Output (MIMO) fading channels. In particular, a novel Optimum Receiver for separately-correlated MIMO channels is proposed. This novel pilot-aided receiver is able to process jointly the pilot symbols, transmitted within each time frame as a preamble, and the information symbols and to decode the transmitted data in a single step, avoiding the explicit estimation of the channel matrix. The optimum receiver is designed for the following two scenarios, corresponding t
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47

Menon, Rekha. "Impact of Channel Estimation Errors on Space Time Trellis Codes." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/36490.

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<p>Space Time Trellis Coding (STTC) is a unique technique that combines the use of multiple transmit antennas with channel coding. This scheme provides capacity benefits in fading channels, and helps in improving the data rate and reliability of wireless communication. STTC schemes have been primarily designed assuming perfect channel estimates to be available at the receiver. However, in practical wireless systems, this is never the case. The noisy wireless channel precludes an exact characterization of channel coefficients. Even near-perfect channel estimates can necessitate huge overhead in
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48

Mendu, Arjun. "A New Simulation of Multi-State Fading Channels." Ohio University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1061239558.

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Samuel, Rajkumar. "Modeling of multipath fading channels for network simulation." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1293.

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Yang, Fan. "Free-space optical communication systems over fading channels." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/56495.

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Streszczenie:
Free-space optical (FSO) communication systems can provide larger bandwidth and rapid deployment for communication links. Such systems do not interfere with existing radio frequency (RF) systems and can make communication more secure. However, the performance of FSO communication systems is highly dependent on its channel conditions. The atmospheric channels can impose attenuation and scintillation effects on the communication link, and these effects can hinder the correct detection of information on receiver side. In this thesis, we focus on the performance analysis of terrestrial FSO systems
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