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Refined Techniques For Blind Equalization Of Phase Shift Keyed Psk And Quadrature Amplitude Modulated Qam Digital Communications Signals
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Book Synopsis Refined Techniques for Blind Equalization of Phase Shift Keyed (PSK) and Quadrature Amplitude Modulated (QAM) Digital Communications Signals by : Roy Axford
Download or read book Refined Techniques for Blind Equalization of Phase Shift Keyed (PSK) and Quadrature Amplitude Modulated (QAM) Digital Communications Signals written by Roy Axford and published by . This book was released on 1995 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modern Quadrature Amplitude Modulation by : William Webb
Download or read book Modern Quadrature Amplitude Modulation written by William Webb and published by . This book was released on 1994 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Whole Story Behind Blind Adaptive Equalizers/ Blind Deconvolution by : Monika Pinchas
Download or read book The Whole Story Behind Blind Adaptive Equalizers/ Blind Deconvolution written by Monika Pinchas and published by Bentham Science Publishers. This book was released on 2012 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well known that Intersymbol (ISI) Interference is a limiting factor in many communication environments where it causes an irreducible degradation of the bit error rate (BER) thus imposing an upper limit on the data symbol rate. In order to overcome the ISI problem, an equalizer is implemented in those systems. Among the three types of equalizers - non-blind, semi-blind and blind - the blind equalizer has the benefit of bandwidth saving and there is no need of going through a training phase. Blind equalization algorithms are essentially adaptive filtering algorithms designed such that they do not require the external supply of a desired response to generate the error signal in the output of the adaptive equalization filter. the algorithms generate an estimate of the desired response by applying a nonlinear transformation to sequences involved in the adaptation process. This nonlinearity is designed to minimize a cost function that is implicitly based on higher order statistics (HOS) according to one approach, or calculated directly according to the Bayes rules. The Whole Story behind Blind Adaptive Equalizers/ Blind Deconvolution gives the readers a full understanding on the blind deconvolution. the e-book covers a variety of blind deconvolution/equalization methods based on both cost functions and Bayes rules where simulation results are supplied to support the theory. These include the Maximum Entropy density approximation technique and the Edgeworth Expansion approach used in various blind equalizers. It also describes the relationship between the cost function approach and the approach taken according to Bayes rules. the e-book deals also with the effect of various system parameters (such as the step-size parameter or the equalizer's tap length) have on the obtained equalization performance. This e-book will be of particular interest to advanced communications engineering undergraduate students, graduate students, university instructors and signal processing researchers.
Book Synopsis Adaptive Blind Equalization Technique for QAM Data Communications by : Yuang Lou
Download or read book Adaptive Blind Equalization Technique for QAM Data Communications written by Yuang Lou and published by . This book was released on 1992 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quadrature Amplitude Modulation 78 Success Secrets - 78 Most Asked Questions on Quadrature Amplitude Modulation - What You Need to Know by : Randy Simpson
Download or read book Quadrature Amplitude Modulation 78 Success Secrets - 78 Most Asked Questions on Quadrature Amplitude Modulation - What You Need to Know written by Randy Simpson and published by Emereo Publishing. This book was released on 2014-10-25 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experience quadrature amplitude modulation in a whole new way. There has never been a quadrature amplitude modulation Guide like this. It contains 78 answers, much more than you can imagine; comprehensive answers and extensive details and references, with insights that have never before been offered in print. Get the information you need--fast! This all-embracing guide offers a thorough view of key knowledge and detailed insight. This Guide introduces what you want to know about quadrature amplitude modulation. A quick look inside of some of the subjects covered: C-QUAM, Radio communications - Data (digital radio), Asymmetric phase-shift keying, Trellis modulation, IEEE 802.11-2007 - 802.11ac, Cable modem termination system Connections, Vector signal analyzer - DSP Display stage, OFDM system comparison table, Kip Thorne - Gravitational waves and LIGO, 64QAM, Modulator - List of common digital modulation techniques, Digital cable - Technical information, Satellite modem - Features, G.992.1 - Reducing Bit Errors with QAM PSK, Modulation order, Broadcast television systems - ATSC, Digital modulation - Analog modulation methods, Outline of television broadcasting - Modulation and frequency conversion, QAM (disambiguation), Cable television headend - Modulation, Global navigation satellite systems - CDMA signals, Grand Alliance (HDTV), Orthogonal frequency-division multiplexing, ISDB - Transmission, Error correction - Satellite broadcasting (DVB), Telecommunications - Modulation, COFDM, Pulse amplitude modulation - Types, 8-VSB - Throughput, Independent sideband, Digital terrestrial - Thailand, AM broadcast band - AM stereo, Carrierless Amplitude Phase Modulation, Amplitude and phase-shift keying, Discrete multi-tone modulation, Modulation - Fundamental digital modulation methods, 8VSB, Chrominance - Television standards, Web-to-TV - Video on demand, and much more...
Book Synopsis Joint Blind Synchronization of M-PSK and M-QAM Signals by :
Download or read book Joint Blind Synchronization of M-PSK and M-QAM Signals written by and published by . This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes development of an algorithm for synchronization to phase shift keying and quadrature amplitude modulated signals for which little a-priori information is known, in the presence of timing and carrier frequency offsets. Some simplifications of the synchronization problem have been made so that this algorithm could be characterized independently of several variables. The algorithm is based on minimizing an objective function which is sensitive to the delay and frequency offsets. Using two one-dimensional searches in the delay-frequency plane, the algorithm attempts to find the optimum values which maximize the objective function. Simulation results are presented to illustrate the performance of the algorithm and to indicate areas where improvements can be made.
Book Synopsis Techniques for Blind System Identification and Application to the Equalization of PAM/QAM Modulated Signals by : Haralampos Pozidis
Download or read book Techniques for Blind System Identification and Application to the Equalization of PAM/QAM Modulated Signals written by Haralampos Pozidis and published by . This book was released on 1998 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis PERFORMANCE OF QAM SYSTEM WITH CONVOLUTIONAL CODES by : K. Pranathi
Download or read book PERFORMANCE OF QAM SYSTEM WITH CONVOLUTIONAL CODES written by K. Pranathi and published by Archers & Elevators Publishing House. This book was released on with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Blind Adaptive Channel Equalization Algorithms for QAM Signals Based on the Constant Modulus Algorithm by : Antoinette Michele Beasley
Download or read book Blind Adaptive Channel Equalization Algorithms for QAM Signals Based on the Constant Modulus Algorithm written by Antoinette Michele Beasley and published by . This book was released on 2006 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of a blind adaptive equalizer in digital communications is to compensate for the effects of intersymbol interference (ISI) without knowledge of the channel or the intended signal. Instead, only the statistics of the signal constellation are used. The constant modulus algorithm (CMA) is the most popular blind adaptive equalization algorithm used today because of its relative simplicity and effectiveness in equalizing constant-modulus signals. Although CMA does offer some equalization of non-constant modulus signals, such as quadrature amplitude modulation (QAM), it can suffer from slower convergence and higher residual ISI when considering such two-dimensional signal constellations. In this dissertation, the well-known constant-modulus algorithm (CMA) and its shortcomings when applied to QAM signals are discussed and illustrated. Then some algorithms designed to improve the performance of CMA are discussed, specifically the alphabet-matched algorithm (AMA) and the multimodulus algorithm (MMA). The use of algorithms such as AMA and MMA is intended to make a CMA-based blind adaptive equalization algorithm better suited for the equalization of QAM signals, as they, unlike CMA, consider both the amplitude and the phase of the equalizer output. Using AMA, a combined CMA+AMA cost function technique and a block decision feedback equalization (DFE) scheme are proposed, which allow for compensation of a number of the shortcomings of CMA only equalization and improve equalizer performance while adding only minimal complexity. The improvements in equalizer performance are shown through performance evaluation via simulation. It will be shown that the proposed algorithms provide faster, and sometimes more accurate, convergence, reduces residual ISI and/or increases final accuracy. -- Abstract.
Book Synopsis An Improved Joint Blind Synchronization Algorithm for M-PSK and M-QAM Signals (U). by :
Download or read book An Improved Joint Blind Synchronization Algorithm for M-PSK and M-QAM Signals (U). written by and published by . This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents results of studies to improve the performance of a previously developed joint blind synchronization algorithm for phase shift keying and quadrature amplitude modulated signals using digital signal processing based approaches. In this context, blind implies that no a-priori information is known about the signal or its structure other than the symbol rate and the modulation type. The blind synchronization technique exploits the self-coherency of the received sampled data using a nearest neighbour type of search method whose objective is to minimize a certain cost function. The report describes two improvements made to the algorithm: lifting of a previous restriction of an integer relationship between the baud rate and the sampling rate of the analog to digital converter in the receiver, and a coarse two-dimensional search implemented to provide the original search strategy with initial starting points. Simulation results are presented to illustrate the performance improvements achieved.
Book Synopsis Equalization of Quadrature Phase Shift Keying on the HF Channel by : C. K. Pauw
Download or read book Equalization of Quadrature Phase Shift Keying on the HF Channel written by C. K. Pauw and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Blind Equalization in Digital Communications Over Fading Channels by : Robert A. Conn
Download or read book Blind Equalization in Digital Communications Over Fading Channels written by Robert A. Conn and published by . This book was released on 1992 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Efficient and Effective Blind Equalization for Digital Communications by : Hongda Chen
Download or read book Efficient and Effective Blind Equalization for Digital Communications written by Hongda Chen and published by . This book was released on 1998 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Blind Equalizer for a Communication System Using Binary Phase Shift Keying by : James E. Owen
Download or read book A Blind Equalizer for a Communication System Using Binary Phase Shift Keying written by James E. Owen and published by . This book was released on 1987 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Equalization in Coherent-phase-shift-keyed Digital Communication Systems by : Hector Aguirre
Download or read book Equalization in Coherent-phase-shift-keyed Digital Communication Systems written by Hector Aguirre and published by . This book was released on 1978 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quadrature Amplitude Modulation (QAM/DQAM). by :
Download or read book Quadrature Amplitude Modulation (QAM/DQAM). written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quadrature Amplitude Modulation (QAM/DQAM). by :
Download or read book Quadrature Amplitude Modulation (QAM/DQAM). written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
