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Local multiscale frequency and bandwidth estimation

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3 Author(s)
H. Knutsson ; Dept. of Electr. Eng., Linkoping Univ., Sweden ; C. -F. Westin ; G. Granlund

This paper describes a robust algorithm for estimation of local signal frequency and bandwidth. The method is based on combining local estimates of instantaneous frequency over a large number of scales. The filters used are a set of lognormal quadrature wavelets. A novel feature is that an estimate of local frequency bandwidth can be obtained. The bandwidth can be used to produce a measure of certainty for the estimated frequency. The algorithm is applicable to multidimensional data and examples of the performance of the method are demonstrated for one-dimensional and two-dimensional signals

Published in:

Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference  (Volume:1 )

Date of Conference:

13-16 Nov 1994