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Article | REF: TE5215 V1

Wavelets and applications

Authors: Béatrice PESQUET-POPESCU, Jean-Christophe PESQUET

Publication date: August 10, 2001, Review date: November 1, 2015

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1. Time-frequency and time-scale analysis

1.1 Limitations of Fourier analysis

Consider a continuous-time signal s (t ) of finite energy:

A traditional tool for analyzing this signal is its Fourier transform [38] , defined by :

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Time-frequency and time-scale analysis
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