Title :
Search for optimal basis for signal denoising in the space of N-tap wavelets
Author :
Das, A. ; Desai, U.B. ; Vaidya, P.P.
Author_Institution :
Electron. Div., Bhabha Atomic Res. Centre, Bombay, India
Abstract :
An algorithm for the construction of optimal compactly supported N-tap orthonormal wavelet for signal denoising is presented. A square norm cost function employing a universal soft-threshold in the wavelet domain is minimized with respect to the parameterized wavelet FIR filter bank coefficients by using the principle of simulated annealing. A few simulation results presented for signal denoising
Keywords :
FIR filters; channel bank filters; filtering theory; noise; signal processing; simulated annealing; wavelet transforms; N-tap orthonormal wavelet; optimal basis; optimal compactly supported wavelet; parameterized wavelet FIR filter bank coefficients; signal denoising; simulated annealing; simulation results; square norm cost function; universal soft-threshold; Cost function; Data mining; Estimation; Finite impulse response filter; Random processes; Signal denoising; Signal processing; Simulated annealing; Space technology; Wavelet domain;
Conference_Titel :
Signal Processing and its Applications, Sixth International, Symposium on. 2001
Conference_Location :
Kuala Lumpur
Print_ISBN :
0-7803-6703-0
DOI :
10.1109/ISSPA.2001.949784
