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Telecommunications and Radio Engineering
SJR: 0.203 SNIP: 0.44 CiteScore™: 1

ISSN Imprimir: 0040-2508
ISSN On-line: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v73.i5.80
pages 457-465

EXPERIMENTAL STUDY OF THE ROBUSTNESS OF BISPECTRAL-BASED MODULATION

J. T. Astola
Tampere University of Technology, Signal Processing Laboratory, P. O. Box 553, FIN-33101, Tampere, Finland
D.I. Kurudymov
Kharkiv National Aerospace University, 17, Chkalova Str., 61070, Kharkiv, Ukraine
V.F. Solodovnik
Kharkiv National Aerospace University, 17, Chkalova Str., 61070, Kharkiv, Ukraine
A. V. Totsky
National Aerospace University (Kharkiv Aviation Institute), 17, Chkalov St., Kharkiv, 61070, Ukraine

RESUMO

Results of an experimental study of noise immunity of a novel modulation scheme based on bispectrum and triplet signals are presented and discussed. A novel test statistics in the form of peak value of magnitude bispectrum developed for discriminating triplet-signals is developed and studied. Both theoretically derived and experimentally acquired bit error rates are presented and compared for a wide range of bit energy-to-noise spectral density ratio under additive Gaussian noise and multipath fading. A distinctive property of the introduced test statistic is that it is a third-order signal discrimination measure and so enables to extract and indicate such phase dependencies in a priori given in triplet-signals that is not possible for conventional discrimination measure based on second-order statistics, i.e., correlation function and power spectral density estimation. The benefits of the suggested bispectral-based modulation compared to common phase and frequency shift keying are demonstrated and discussed.

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