Performance of blind discrete source separation

Author

Grellier, O. ; Comon, P.

Author_Institution

Algorithmes, I3S, Biot, France

fYear

1998

fDate

8-11 Sept. 1998

Firstpage

1

Lastpage

4

Abstract

The aim of this paper is two-fold. In a first part, we investigate the ultimate performances of source separation in the case of BPSK and 4-PSK sources. These ultimate bounds are computed by looking first for the most favourable mixing matrices, for various SNRs, number of sources and number of sensors, and then by calculating the associated error probabilities. In a second part, we compare the behaviour of two 4-QAM source separation algorithms. One is based on the Constant Modulus (CM) property of these sources, and the other is based on the Constance of their fourth power. The goal here is to see what kind of improvement brings the knowledge of the source distribution.

Keywords

blind source separation; error statistics; phase shift keying; quadrature amplitude modulation; 4-PSK source; 4-QAM source separation algorithms; BPSK source; SNR; blind discrete source separation performance; constant modulus property; error probabilities; favourable mixing matrices; source distribution; Binary phase shift keying; Error probability; Quadrature amplitude modulation; Sensors; Signal processing algorithms; Source separation;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Conference (EUSIPCO 1998), 9th European

Conference_Location

Rhodes

Print_ISBN

978-960-7620-06-4

Type

conf

Filename

7089651