Title :
Simultaneous blind signal separation and denoising
Author :
Hammam, H. ; El-Azm, A. E Abu ; Elhalawany, M.E. ; El-Samie, F. E Abd
Author_Institution :
Telecom Egypt, Alexandria
Abstract :
This paper deals with the problem of blind separation of denoising. It proposes the application of the discrete wavelet transform as a preprocessing step of denoising prior to the blind separation algorithm. The separation of sinusoidal signals as well as speech signals in a noisy environment is studied with and without the use of the wavelet denoising step. The simulation results confirm the usefulness of this step. In all our simulation experiments, soft thresholding is used.
Keywords :
blind source separation; discrete wavelet transforms; signal denoising; blind signal separation; discrete wavelet transform; sinusoidal signals; soft thresholding; speech signals; wavelet denoising; Blind source separation; Discrete wavelet transforms; Higher order statistics; Independent component analysis; Noise reduction; Signal processing algorithms; Source separation; Speech; Telecommunications; Working environment noise;
Conference_Titel :
Computer Engineering & Systems, 2008. ICCES 2008. International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-2115-2
Electronic_ISBN :
978-1-4244-2116-9
DOI :
10.1109/ICCES.2008.4772976
