DocumentCode :
1550556
Title :
Algebraic differential decorrelation for nonstationary source separation
Author :
Choi, Seungjin ; Cichocki, A.
Author_Institution :
Dept. of Comput. Sci. & Eng., Pohang Inst. of Sci. & Technol., South Korea
Volume :
37
Issue :
23
fYear :
2001
fDate :
11/8/2001 12:00:00 AM
Firstpage :
1414
Lastpage :
1415
Abstract :
A differential correlation is introduced which is able to capture the time-varying statistics of nonstationary signals and it is shown that minimisation of differential cross-correlations between observation signals can achieve nonstationary source separation. For implementation, an algebraic method is employed, the joint approximate diagonalisation, therefore the resulting method is referred to as Algebraic Differential DEcorrelation (ADDE). The useful behaviour of the method is confirmed by computer simulations
Keywords :
decorrelation; signal processing; time-varying systems; algebraic differential decorrelation; differential correlation; differential cross-correlations; joint approximate diagonalisation; minimisation; nonstationary signals; nonstationary source separation; time-varying statistics;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:20010932
Filename :
966557
Link To Document :
بازگشت