DocumentCode
2325595
Title
A novel method to estimate of mixing matrix under over-complete cases in wavelet packet domain
Author
Mozaffari, B. ; Tinati, M.A.
Author_Institution
Fac. of Electr. & Comput. Eng., Univ. of Tabriz, Tabriz
fYear
2008
fDate
13-15 May 2008
Firstpage
943
Lastpage
946
Abstract
Wavelet packets decompose signals in to broader components using linear spectral bisecting. Mixing matrix is the key issue in the blind source separation (BSS) literature especially in under-determined cases. In this paper, we propose a novel method to obtain the best wavelet packet node to find sources directions in scatter plots using variance calculations and therefore estimating mixing matrix from noise free linear mixtures in over-complete cases is done.
Keywords
blind source separation; wavelet transforms; blind source separation; linear spectral bisecting; mixing matrix; over-complete cases; scatter plots; variance calculations; wavelet packet domain; Additive noise; Blind source separation; Independent component analysis; Laplace equations; Matrix decomposition; Source separation; Sparse matrices; Wavelet domain; Wavelet packets; Wavelet transforms;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer and Communication Engineering, 2008. ICCCE 2008. International Conference on
Conference_Location
Kuala Lumpur
Print_ISBN
978-1-4244-1691-2
Electronic_ISBN
978-1-4244-1692-9
Type
conf
DOI
10.1109/ICCCE.2008.4580745
Filename
4580745
Link To Document