Computation of continuous wavelet transform of signals in the basis of the Chebyshev-Hermite functions

Abstract

The paper deals with the development of basis for computation wavelet-transform from the coefficients given by decomposition original signal with Chebyshev-Hermite functions. Decomposition with Chebyshev-Hermite functions allow to transform original signal into coefficients, that can be used for reconstructing different transforms of original signal like Fourier transform, derivatives of different orders, wavelet transform and others. These transforms can be obtained by using corresponding bases. In this paper considered basis for wavelet-transform with derivative of Gauss functions as wavelet. This basis is computed by applying continuous wavelet transform with derivative of Gauss functions as wavelet into the Chebyshev-Hermite functions. For estimating error of Chebyshev-Hermite wavelet basis reduced error are used. Arrays of the wavelet coefficients are presented as 3D plots. The Mathematica 11.3 computer algebra system was used to calculations and graph the results.

About the authors

R. T. Sayfullin

Samara State Technical University

Author for correspondence.
Email: Info@eco-vector.com
Russian Federation

A. V. Bochkarev

Samara State Technical University

Email: Info@eco-vector.com
Russian Federation

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