Title :
Blind separation of cyclostationary sources using non-orthogonal approximate joint diagonalization
Author :
CheViet, N. ; El Badaoui, M. ; Belouchrani, Adel ; Guillet, François
Author_Institution :
Lab. d´´Analyse des Signaux & des Processus Industriels, Roanne
Abstract :
This paper presents a new technique for the blind separation of cyclostationary signals by exploiting the cyclostationary nonstochastic temporal-probability models (fraction on time FOT) for signals (time-series) with periodic structure. The proposed approach is based on the joint diagonalization nonorthogonal of a set of matrices which have the same structure, then it can be simultaneously separating all sources without any restrictions and distributions to the number of cyclic frequencies of each sources. Simulation results are provided to illustrate the effectiveness of the proposed approach.
Keywords :
blind source separation; periodic structures; time series; blind source separation; cyclic frequencies; cyclostationary nonstochastic temporal-probability models; cyclostationary signals; cyclostationary sources; nonorthogonal approximate joint diagonalization; periodic structure; time-series; Additive noise; Blind source separation; Frequency diversity; Frequency estimation; Periodic structures; Signal analysis; Signal processing; Source separation; Stochastic processes; Time series analysis; Blind source separation (BSS); Cyclostationary source (CS); Fraction on Time; time-series;
Conference_Titel :
Sensor Array and Multichannel Signal Processing Workshop, 2008. SAM 2008. 5th IEEE
Conference_Location :
Darmstadt
Print_ISBN :
978-1-4244-2240-1
Electronic_ISBN :
978-1-4244-2241-8
DOI :
10.1109/SAM.2008.4606919