Geodesic
Application of triple correlation and bispectrum for interference immunity improvement in telecommunications systems
International Journal of Applied Mathematics and Computer Science, Tome 18 (2008) no. 3, pp. 361-367.

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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 correlationand 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.
Keywords: telecommunications, frequency shift keying, redundant encoding, triple correlation, bispectrum
Mots-clés : telekomunikacja, bispektrum, przesuw częstotliwości, kluczowanie częstotliwości, kodowanie nadmiarowe, korelacja potrójna 
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Molchanov, P.; Totsky, A. Application of triple correlation and bispectrum for interference immunity improvement in telecommunications systems. International Journal of Applied Mathematics and Computer Science, Tome 18 (2008) no. 3, pp. 361-367. http://geodesic.mathdoc.fr/item/IJAMCS_2008_18_3_a8/

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