Signal dependent biorthogonal wavelet based representation

Authors:
Lalit K. Jiwani;S. D. Joshi;G. S. Visweswaran
Affiliations:
Electrical Engineering Department, Indian Institute of Technology, Delhi, Delhi, India;Electrical Engineering Department, Indian Institute of Technology, Delhi, Delhi, India;Electrical Engineering Department, Indian Institute of Technology, Delhi, Delhi, India
Venue:
ICECS'05 Proceedings of the 4th WSEAS international conference on Electronics, control and signal processing
Year:
2005

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Abstract

This work presents a framework for wavelet-based representation of a given deterministic signal. We propose a method for matched wavelet based representation of the signal. Our method requires a signal-conditioning step at each stage of the wavelet decomposition. The wavelet system designed in this work is biorthogonal. Both the signal-conditioning step and the wavelet system depend on the given signal. The proposed method is valid for signals having arbitrary spectra. The proposed method when applied to compression of different signals shows substantial improvement over.