Title
Non-Linear Weighting Function for Non-Stationary Signal Denoising
Abstract
We propose in this paper a new strategy for non-stationary signals denoising based on designing a time-varying filter adapted to the signal short term spectral characteristics. The basic idea leading us to use a new parametric nonlinear weighting of the measured signal short term spectral amplitude (STSA) is exposed. The overall system consists in combining the estimated STSA and the complex exponential of the noisy phase. The proposed technique results in a significant reduction of the noise for a variety of non-stationary signals including speech signals
Year
DOI
Venue
2006
10.1109/ICASSP.2006.1660692
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference
Keywords
Field
DocType
Fourier transforms,nonlinear functions,signal denoising,speech processing,time-varying filters,nonlinear weighting function,nonstationary signal denoising,short time Fourier transform,signal short term spectral amplitude,signal short term spectral characteristics,speech signals,time-varying filter
Noise reduction,Speech processing,Weighting,Nonlinear system,Pattern recognition,Computer science,Stationary process,Short-time Fourier transform,Fourier transform,Parametric statistics,Artificial intelligence
Conference
Volume
ISSN
ISBN
3
1520-6149
1-4244-0469-X
Citations 
PageRank 
References 
0
0.34
3
Authors
3
Name
Order
Citations
PageRank
Farès Abda100.34
David Brie213024.28
Radu Ranta3379.35