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Kalman Filtering Of Narrowband Interference From Direct Sequence Spread Spectrum Communications Systems
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Book Synopsis Kalman Filtering of Narrowband Interference from Direct Sequence Spread Spectrum Communications Systems by : Brian William Kozminchuk
Download or read book Kalman Filtering of Narrowband Interference from Direct Sequence Spread Spectrum Communications Systems written by Brian William Kozminchuk and published by . This book was released on 1992 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Brian William Kozminchuk Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 : Total Pages :476 pages Book Rating :4.:/5 (29 download)
Book Synopsis Kalman Filtering of Narrowband Interference from Direct-sequence Spread-spectrum Communications Systems [microform] by : Brian William Kozminchuk
Download or read book Kalman Filtering of Narrowband Interference from Direct-sequence Spread-spectrum Communications Systems [microform] written by Brian William Kozminchuk and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1992 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Kalman Filter-Based Architectures for Interference Excision by :
Download or read book Kalman Filter-Based Architectures for Interference Excision written by and published by . This book was released on 1991 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a novel Kalman filtering approach to the suppression of narrowband interference from direct sequence spread spectrum communications systems. The algorithm is based on the digital phase-locked loop Kalman filter. Because the interference is assumed to be much stronger than either the signal or noise, the Kalman filter locks onto a function related to the interference. The net result is an estimate of the phase of the interference and its amplitude. The algorithm is characterized through computer simulation for the case of narrowband Gaussian noise interference. Examples of the phase- and envelope-tracking capabilities of the algorithm are presented, followed by bit error rate curves for interference bandwidths ranging from 0.5% to 5.0% of the chip rate of the spread spectrum signal. The report concludes with three adaptive architectures.-The first is suitable for constant envelope interference; the second is a more general structure; and the third incorporate a decision-feedback structure accompanied with a training sequence.
Book Synopsis Narrowband Interference Suppression Techniques Using Decision Feedback Filtering in Direct Sequence Spread Spectrum Systems by : Katherine Jauregui Lovette
Download or read book Narrowband Interference Suppression Techniques Using Decision Feedback Filtering in Direct Sequence Spread Spectrum Systems written by Katherine Jauregui Lovette and published by . This book was released on 1994 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical Bit Error Rate Performance of the Kalman Filter Excisor for FM Interference by :
Download or read book Theoretical Bit Error Rate Performance of the Kalman Filter Excisor for FM Interference written by and published by . This book was released on 1992 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical report develops a theoretical bit error rate expression for a Kalman filtering technique that is used for filtering narrowband interferers out of direct sequence spread spectrum signals. The approach is based on the digital phase-locked loop Kalman filter and is close to optimum in so far as demodulating an FM-type of interferer. Because the interference is assumed to be much stronger than either the signal or noise, the Kalman filter locks onto the interference and produces estimates of its phase and envelope. Several assumptions are made in the development of the theoretical bit error rate expression and these are expanded upon. It is shown and illustrated that theory agrees well with simulation as long as the bandwidth of the low pass filter used to determine the envelope of the interference is much less than the sampling rate, otherwise the interference estimate at the input to the interference canceller will have significant cross-correlation with the signal, leading to some cancellation of the spread spectrum signal.
Book Synopsis Narrowband Interference Rejection Techniques in Direct Sequence Spread Spectrum Systems by : Ronald Athelstan Iltis
Download or read book Narrowband Interference Rejection Techniques in Direct Sequence Spread Spectrum Systems written by Ronald Athelstan Iltis and published by . This book was released on 1984 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Narrowband Interference Rejection in Direct-sequence Spread-spectrum Systems Using Time Domain Adaptive Filters by : Cheryl L. Stutzmann
Download or read book Narrowband Interference Rejection in Direct-sequence Spread-spectrum Systems Using Time Domain Adaptive Filters written by Cheryl L. Stutzmann and published by . This book was released on 1998 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Principles of Spread-Spectrum Communication Systems by : Don Torrieri
Download or read book Principles of Spread-Spectrum Communication Systems written by Don Torrieri and published by Springer. This book was released on 2015-04-23 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook provides a concise but lucid explanation of the fundamentals of spread-spectrum systems with an emphasis on theoretical principles. The choice of specific topics is tempered by the author’s judgment of their practical significance and interest to both researchers and system designers. Throughout the book, learning is facilitated by many new or streamlined derivations of the classical theory. Problems at the end of each chapter are intended to assist readers in consolidating their knowledge and to provide practice in analytical techniques. This third edition includes new coverage of topics such as CDMA networks, Acquisition and Synchronization in DS-CDMA Cellular Networks, Hopsets for FH-CDMA Ad Hoc Networks, and Implications of Information Theory, as well as updated and revised material on Central Limit Theorem, Power Spectral Density of FH/CPM Complex Envelopes, and Anticipative Adaptive-Array Algorithm for Frequency-Hopping Systems.
Book Synopsis Filtering of Direct-sequence Spread Spectrum Systems with Frequency-hop Interference by : John Keelan Grosspietsch
Download or read book Filtering of Direct-sequence Spread Spectrum Systems with Frequency-hop Interference written by John Keelan Grosspietsch and published by . This book was released on 1984 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Comparison of Recursive Least Squares and Kalman Filtering Excisors for Swept Tone Interference by :
Download or read book A Comparison of Recursive Least Squares and Kalman Filtering Excisors for Swept Tone Interference written by and published by . This book was released on 1992 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical note presents a Kalman filtering approach that is used for filtering narrowband interferers out of direct sequence spread spectrum signals. The approach is based on the digital phase-locked loop Kalman filter and is close to optimum in so far as demodulating an FM-type of interferer. Because the interference is assumed to be much stronger than either the signal or noise, the Kalman filter locks onto the interference and produces estimates of its phase and envelope. The algorithm is compared, through computer simulation, with the recursive least squares lattice algorithm for the case of a swept tone interferer. Examples of the phase- and envelope-tracking capabilities of the algorithm are presented, followed by bit error rate curves for the case of an interferer of bandwidth equal to 20% of the chip rate of the spread spectrum signal. The results show that with proper selection of the Kalman filter parameters, the Kalman filter excisor can outperform the recursive least squares algorithm by 2 dB. It is suggested that performance could perhaps be improved further by using a higher order Kalman filter to remove the residual phase-tracking error produced by the second order Kalman filter.
Book Synopsis Principles of Spread-Spectrum Communication Systems, Second Edition by : Don Torrieri
Download or read book Principles of Spread-Spectrum Communication Systems, Second Edition written by Don Torrieri and published by Springer Science & Business Media. This book was released on 2011-07-15 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a concise but lucid explanation of the fundamentals of spread-spectrum systems with an emphasis on theoretical principles. Throughout the book, learning is facilitated by many new or streamlined derivations of the classical theory. Problems at the end of each chapter are intended to assist readers in consolidating their knowledge and to provide practice in analytical techniques. The choice of specific topics is tempered by the author’s judgment of their practical significance and interest to both researchers and system designers. The evolution of spread spectrum communication systems and the prominence of new mathematical methods in their design provided the motivation to undertake this new edition of the book. This edition is intended to enable readers to understand the current state-of-the-art in this field. More than 20 percent of the material in this edition is new, including a chapter on systems with iterative channel estimation, and the remainder of the material has been thoroughly revised.
Book Synopsis Band-reject Filtering for Direct-sequence Spread Spectrum Communication Systems by : John Edward Uth
Download or read book Band-reject Filtering for Direct-sequence Spread Spectrum Communication Systems written by John Edward Uth and published by . This book was released on 1985 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Filter Distortion and Intersymbol Interference Effects in Direct-sequence Spread-spectrum Multiple-access Communication Systems by : Christopher Lance Johnson
Download or read book Filter Distortion and Intersymbol Interference Effects in Direct-sequence Spread-spectrum Multiple-access Communication Systems written by Christopher Lance Johnson and published by . This book was released on 1990 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electrical & Electronics Abstracts by :
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 1948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Convex Projections Method for Improved Narrowband Interference Rejection in Direct Sequence Spread Spectrum Systems by : Krishna Rama Narayanan
Download or read book A Convex Projections Method for Improved Narrowband Interference Rejection in Direct Sequence Spread Spectrum Systems written by Krishna Rama Narayanan and published by . This book was released on 1994 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994 with total page 1596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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