Wavelet Denoising Of Chirp-like Signals In The Fourier Domain

Author

Liping Deng
John G. Harris, Missouri University of Science and TechnologyFollow

Abstract

Wavelet shrinkage is a simple yet powerful tool for denoising piecewise smooth signals. In this paper we show that this method fails on chirp-like signals. We propose a new strategy to denoise these types of signals. First, we transform the signal to the Fourier domain, and denoise its Fourier transform using conventional wavelet shrinkage. Then, we obtain the resulting time domain signal with the inverse Fourier transform. The results are compared to the well-known wavelet shrinkage method and the ideal Wiener filtering method.

Recommended Citation

L. Deng and J. G. Harris, "Wavelet Denoising Of Chirp-like Signals In The Fourier Domain," Proceedings IEEE International Symposium on Circuits and Systems, vol. 3, Institute of Electrical and Electronics Engineers, Jan 1999.

Department(s)

Electrical and Computer Engineering

International Standard Serial Number (ISSN)

0271-4310

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 Institute of Electrical and Electronics Engineers, All rights reserved.

Publication Date

01 Jan 1999