Blind source extraction of periodic signals

Author

Ghaderi, Foad ; Mohseni, Hamid R. ; McWhirter, John G. ; Sanei, Saeid

Author_Institution

Centre of Digital Signal Process., Cardiff Univ., Cardiff

fYear

2009

fDate

19-24 April 2009

Firstpage

377

Lastpage

380

Abstract

A new algorithm is developed here for blind extraction of periodic signals. It is assumed that the fundamental frequencies of the sources (or alternatively one of the harmonics for each source) are known a priori. Necessary and sufficient conditions for blind source extraction of cyclostationary signals are introduced and the optimization problem is solved using steepest descent method for complex matrices. Computer simulation results verify the effectiveness and good performance of the algorithm.

Keywords

blind source separation; feature extraction; matrix algebra; blind source extraction; complex matrix; cyclostationary signal; optimization problem; periodic signal separation; steepest descent method; Computer simulation; Covariance matrix; Digital signal processing; Frequency; Higher order statistics; Optimization methods; Signal processing; Signal processing algorithms; Source separation; Sufficient conditions; Blind source extraction; cyclostationarity; periodic signal separation;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on

Conference_Location

Taipei

ISSN

1520-6149

Print_ISBN

978-1-4244-2353-8

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2009.4959599

Filename

4959599