Title :
An adaptive non-AWGN SSMA receiver
Author :
Pawelec, Józef J.
fDate :
8/1/2002 12:00:00 AM
Abstract :
This article deals with the issue of optimum detection of a known spread spectrum (SS) signal in nonwhite noise and/or narrowband interference. Prior to detection, the input signal is whitened according to the reciprocal of an interfering spectrum, I(z)=1/AG(z). Next, in force of the maximum likelihood (ML) principle, the replica of signal is carried through the same filter, I(z), to match it to a new signal shape. Results of simulation show a significant gain in comparison to conventional single-matched detection.
Keywords :
AWGN; adaptive signal detection; filtering theory; matched filters; maximum likelihood detection; multi-access systems; optimisation; radio receivers; radiofrequency interference; spread spectrum communication; ML principle; SS signal; adaptive nonAWGN SSMA receiver; double matching theory; interfering spectrum; maximum likelihood detection; narrowband interference; nonwhite noise; optimum signal detection; single-matched detection; spread spectrum signal; whitening filter; AWGN; Adaptive signal detection; Additive white noise; Fourier transforms; Gaussian noise; Interference; Matched filters; Narrowband; Shape; Signal processing;
Journal_Title :
Communications Magazine, IEEE
DOI :
10.1109/MCOM.2002.1024424
