DocumentCode :
3599736
Title :
A self-organising nonlinear noise filtering scheme
Author :
Sucher, Ralph
Author_Institution :
Inst. fur Nachrichtentech. und Hochfrequenztech., Tech. Univ. Wien, Austria
Volume :
1
fYear :
1995
Firstpage :
681
Abstract :
In this paper we present a new adaptive algorithm for suppression of impulse noise. The algorithm is based on a special combination of impulse detection and nonlinear filtering where only a small number of parameters is required. In contrast to conventional approaches where parameters have to be trained first, we propose a new unsupervised learning method which is related to blind equalizers and self-organizing maps. Thereby, we dramatically reduce the necessary a-priori information as well as the computational complexity. Further, simulation results show that the performance of the new self-organizing algorithm is equivalent to that of a previously reported method with supervised training which is superior over many other existing techniques for impulse noise removal.
Keywords :
adaptive filters; adaptive signal detection; adaptive signal processing; computational complexity; filtering theory; nonlinear filters; self-organising feature maps; unsupervised learning; adaptive algorithm; blind equalizers; computational complexity reduction; filter parameters; impulse detection; impulse noise suppression; nonlinear filtering; self-organising nonlinear noise filtering; self-organizing algorithm performance; self-organizing maps; simulation results; supervised training; unsupervised learning method; Adaptive algorithm; Blind equalizers; Computational complexity; Detectors; Information filtering; Information filters; Nonlinear filters; Self organizing feature maps; Signal processing algorithms; Unsupervised learning;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signals, Systems and Computers, 1995. 1995 Conference Record of the Twenty-Ninth Asilomar Conference on
ISSN :
1058-6393
Print_ISBN :
0-8186-7370-2
Type :
conf
DOI :
10.1109/ACSSC.1995.540636
Filename :
540636
Link To Document :
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