Improved method of instantaneous frequency estimation based on wavelet ridge

doi:10.7523/j.issn.2095-6134.2009.4.006

Abstract

Abstract:

In order to meet the precision requirement of digital signal instantaneous frequency estimation, an improved algorithm is proposed based on deep analyses of the principle of wavelet ridge. The major improvements of the algorithm include the arrangements on initial values, analytical wavelet's parameter and estimation precision of iterative process. Experimental signal results show that the improved algorithm is more robust and practical.

Key words: digital signal, instantaneous frequency, wavelet ridge

CLC Number:

TN911.7

WANG Zhao-Hua, GUO Li, LI Hui. Improved method of instantaneous frequency estimation based on wavelet ridge[J]. , 2009, 26(4): 466-473.

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