Title :
Blind MIMO paraunitary equalizer
Author :
Rota, Ludwig ; Comon, Pierre ; Icart, Sylvie
Author_Institution :
Lab. I3S, Sophia Antipolis, France
Abstract :
This paper introduces a new blind source separation algorithm for convolutive mixtures. In addition to separate sources, this algorithm respects the paraunitary property of the model considered, obtained after whitening observations. In order to do this, the equalizer is factorized in a novel manner. After a presentation of theoretical results, a numerical algorithm is then derived. This algorithm is based on the solution of a polynomial system, which some values of output cumulant multi-correlations enter. Simulations and performances of the numerical algorithm are presented in the last section.
Keywords :
MIMO systems; blind equalisers; blind source separation; convolution; correlation methods; higher order statistics; polynomials; MIMO paraunitary equalizer; blind equalizer; blind source separation algorithm; convolutive mixtures; output cumulant multi-correlations; performance; polynomial system; Blind equalizers; Blind source separation; Convergence; Finite impulse response filter; MIMO; Polynomials; Random processes; Statistics; Tin; Transfer functions;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1202625
