Creator:
Molchanov, Pavel ; Totsky, Alexandr
Contributor:
Gałkowski, Krzysztof - ed. ; Rogers, Eric - ed. ; Willems, Jan
Title:
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Subject and Keywords:
telecommunications ; frequency shift keying ; redundant encoding ; triple correlation ; bispectrum
Abstract:
This paper presents a new noise immunity encoding/decoding technique by using the features of triple correlation and bispectrum widely employed in digital signal processing systems operating in noise environments. The triple correlation- and bispectrum-based encoding/decoding algorithm is tested for a digital radio telecommunications binary frequency shift keying system. ; The errorless decoding probability was analyzed by means of computer simulation for the transmission and reception of a test message in a radio channel disturbed by both additive white Gaussian noise (AWGN) and a mixture of an AWGN and an impulsive noise. Computer simulation results obtained for varying and less than unity signal-to-noise ratios at the demodulator input demonstrate a considerable improvement in the noise immunity of the technique suggested in comparison with the traditional redundant linear block encoding/decoding technique.
Publisher:
Zielona Góra: Uniwersytet Zielonogórski
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DOI:
Pages:
Source:
AMCS, volume 18, number 3 (2008) ; click here to follow the link