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JOURNALS // Numerical methods and programming // Archive

Num. Meth. Prog., 2008 Volume 9, Issue 1, Pages 84–89 (Mi vmp421)

Вычислительные методы и приложения

The representation of a wavelet transform of the Gaussian family by a superposition of solutions to partial differential equations

E. B. Postnikov

Kursk State University

Abstract: The usage of partial differential equations for the evaluation of a wavelet transform with real and complex wavelets and with vanishing higher moments is considered. Contrary to the case of the transform with the standard Morlet wavelet, the sought-for transform can be found as a superposition of solutions to several Cauchy problems with various initial values. These initial values are the products of a transformed function with some power functions whose exponents vary from zero to the maximal number of a vanishing moment.

Keywords: continuous wavelet transform, Morlet wavelet, Gaussian wavelets, diffusion equation, partial differential equations.

UDC: 517.955:517.444



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