Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 International Journal of Applied Mathematics and Computer Science

1 2008

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: przesuw częstotliwości

Sortuj według:

Ogranicz wyniki do:

Application of triple correlation and bispectrum for interference immunity improvement in telecommunications systems

Molchanov P., Totsky A.

International Journal of Applied Mathematics and Computer Science

2008

Vol. 18, no 3

361-367

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.