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Telecommunications and Radio Engineering

ISSN for PRINT: 0040-2508

Institutional price:	$4518.00
Issues per year:	20

Best Paper Award Selection - Editorial Board Site

2004, Volume61

551 pages

DOI: 10.1615/TelecomRadEng.v61.i7

Issue price - $1182.00

Reduction of Waveform Distortions in Bispectrum-Based Signal Reconstruction System

A. V. Totsky
National Aerospace University, Chkalova Str. 17, 61070, Kharkov, Ukraine

P. Yu. Kostenko
Kharkov Air Force University, Klochkovskaya Str. 228, 61165, Kharkov, Ukraine

J. T. Astola
Tampere University of Technology, Signal Processing Laboratory, P. O. Box 553, FIN-33101, Tampere, Finland

Karen O. Egiazarian
Tampere University of Technology, Signal Processing Laboratory, P. O. Box 553, FIN-33101, Tampere, Finland

I. V. Kurbatov
National Aerospace University, Chkalova Str. 17, 61070, Kharkov, Ukraine

ABSTRACT

The problem of reconstruction an unknown signal waveform from bispectrum is considered. A new approach based on utilization of continuous sine and cosine functions instead of conventional discontinuous bispectrum phase function in signal reconstruction recursive algorithm is proposed. The performance of the developed signal waveform reconstruction algorithm is analyzed by numerical simulation for real-valued deterministic discrete-time signals containing discontinuities of the first kind in the cases of different sampling rates. Simulation studies demonstrate that significant reconstructed signal quality enhancement occurs with the proposed simple and computationally efficient algorithm.