Author: Mao, Tom RongqiangPublisher:
ISBN:
Category : Phase distortion (Electronics)
Languages : en
Pages : 384
Book Description
Nonlinear Multi-h Phase Codes for Continuous Phase Frequency Shifting Keying Modulation
Author: Mao, Tom RongqiangPublisher:
ISBN:
Category : Phase distortion (Electronics)
Languages : en
Pages : 384
Book Description
Trellis Coding on Multi-amplitude Continuous Phase Frequency Shift Keying
Author: Anuj Raj OjhaPublisher:
ISBN: 9780549352280
Category : Frequency spectra
Languages : en
Pages : 99
Book Description
Continuous Phase Frequency Shift Keying (CPFSK) is a type of non-linear modulation, where the phase change from one symbol to the next symbol is continuous resulting in a faster spectral roll-off and smaller bandwidth. The multi-amplitude CPFSK (MACPFSK), which is created by superposition of CPFSK signals, is a class of CPFSK signals which also preserves the phase continuity; however it looses the constant envelope property. Application of trellis coding to MACPFSK significantly improves the system performance as it increases the minimum distance by introducing restrictions on the symbols that can be in a sequence. Thus a trellis code can be efficiently designed to achieve maximum separation in signals resulting in higher minimum distance value. Moreover, another class of Trellis Coded MACPFSK (TC-MACPFSK) signals can also be generated by altering the alignment of individual CPFSK signal, which is equivalent to the introduction of timing offset. This method inherently reduces the Peak to Average Power Ratio (PAPR) and also improves the system performance in terms of minimum distance for a particular value of timing offset.
Digital Phase Modulation
Author: John B. AndersonPublisher: Springer Science & Business Media
ISBN: 1489920315
Category : Technology & Engineering
Languages : en
Pages : 509
Book Description
The last ten years have seen a great flowering of the theory of digital data modulation. This book is a treatise on digital modulation theory, with an emphasis on these more recent innovations. It has its origins in a collabor ation among the authors that began in 1977. At that time it seemed odd to us that the subjects of error-correcting codes and data modulation were so separated; it seemed also that not enough understanding underlay the mostly ad hoc approaches to data transmission. A great many others were intrigued, too, and the result was a large body of new work that makes up most of this book. Now the older disciplines of detection theory and coding theory have been generalized and applied to the point where it is hard to tell where these end and the theories of signal design and modulation begin. Despite our emphasis on the events of the last ten years, we have included all the traditional topics of digital phase modulation. Signal space concepts are developed, as are simple phase-shift-keyed and pulse-shaped modulations; receiver structures are discussed, from the simple linear receiver to the Viterbi algorithm; the effects of channel filtering and of hardlimiting are described. The volume thus serves well as a pedagogical book for research engineers in industry and second-year graduate students in communications engineering. The production of a manageable book required that many topics be left out.
Woven Coded Continuous Phase Frequency Shift Keying
Author: Stefan KempfPublisher:
ISBN: 9783183757107
Category : Coding theory
Languages : en
Pages : 95
Book Description
IEEE International Symposium on Information Theory
Author: 2000 IEEE International Symposium on Information Theory
Author: IEEE Information Theory SocietyPublisher: IEEE Standards Office
ISBN:
Category : Computers
Languages : en
Pages : 548
Book Description
An Analysis of Minimum Shift Keying from the Viewpoints of Quadrature Multiplexed and Multi-h Continuous Phase Modulation Signaling
Author: Alfred Anthony De SetaPublisher:
ISBN:
Category : Phase modulation
Languages : en
Pages : 120
Book Description
Trellis phase codes for power and bandwidth efficient digital communication
Author: Stephen G. WilsonProceedings, ... IEEE International Symposium on Information Theory
Author: Dissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 868
Book Description