Journal ArticleDOI
Demodulation and Carrier Synchronization of Multi-h Phase Codes
B. Mazur,Desmond P. Taylor +1 more
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This paper examines the demodulation of the multi- h signals, and in particular examines the behavior of a decision-directed carrier loop which utilizes the Viterbi algorithm decoder in the calculation of the loop error signal.Abstract:
Multi- h phase coding is a bandwidth-efficient modulation which offers substantial performance improvement over conventional digital modulations with little or no bandwidth expansion. This paper examines the demodulation of the multi- h signals, and in particular examines the behavior of a decision-directed carrier loop which utilizes the Viterbi algorithm decoder in the calculation of the loop error signal. Both analytic and simulation results are presented and the agreement between the two is shown to be very close.read more
Citations
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Journal ArticleDOI
Continuous phase modulation
TL;DR: A number of methods for constructing constant amplitude signals which significantly outperform MSK are considered, and at what level of complexity these improvements are obtained and realized.
Journal ArticleDOI
Advances in constant envelope coded modulation
J.B. Anderson,C.-E. Sundberg +1 more
TL;DR: An overview of recent advances in constant envelope combined coding and modulation is given, and concatenations of phase codes and convolutional codes are examined.
Journal ArticleDOI
Invited paper Principles of digital line coding
TL;DR: The nature and role of various constraints on code words and word sequences, including those commonly used on metallic lines, optical fibres, carrier channels and radio links are discussed, and some examples from each of these applications are given.
Journal ArticleDOI
Symbol timing estimation with CPM modulation
TL;DR: Symbol timing in continuous phase modulated signals is investigated making use of maximum likelihood estimation methods and it turns out that full response schemes are comparatively easier to synchronize.
Journal ArticleDOI
Multi-h phase-coded modulation
I. Sasase,S. Mori +1 more
TL;DR: An overview of some recent results for multi-h phase-coded modulation (MHPM) schemes is provided, and MHPM combined with convolutional codes, asymmetric modulation indices, or nonuniform mapping are investigated.
References
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Journal ArticleDOI
The viterbi algorithm
TL;DR: This paper gives a tutorial exposition of the Viterbi algorithm and of how it is implemented and analyzed, and increasing use of the algorithm in a widening variety of areas is foreseen.
Book
Advanced Engineering Mathematics
TL;DR: This book discusses ODEs, Partial Differential Equations, Fourier Series, Integrals, and Transforms, and Numerics for ODE's and PDE's, as well as numerical analysis and potential theory, and more.
Journal ArticleDOI
Advanced Engineering Mathematics. ByErwin Kreyszig. Pp. xx, 899. 68s. (Wiley.)
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Advanced Engineering Mathematics.
Ronald F. Barnes,Erwin Kreyszig +1 more
TL;DR: In this article, the authors present an approach for ODE's Phase Plane, Qualitative Methods, and Partial Differential Equations (PDE's) to solve ODE problems.
Journal ArticleDOI
Viterbi Decoding for Satellite and Space Communication
J. Heller,I. Jacobs +1 more
TL;DR: Convolutional coding and Viterbi decoding, along with binary phase-shift keyed modulation, is presented as an efficient system for reliable communication on power limited satellite and space channels.