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JOURNALS // Problemy Peredachi Informatsii // Archive

Probl. Peredachi Inf., 2004 Volume 40, Issue 3, Pages 49–61 (Mi ppi142)

Methods of Signal Processing

Wavelets and Estimation of Discontinuous Functions

L. L. Boiko

Institute for Information Transmission Problems, Russian Academy of Sciences

Abstract: The paper considers the problem of estimating a signal with finitely many points of discontinuity from observations against white Gaussian noise. It is shown that, with an appropriate choice of a generator polynomial, an estimation method based on wavelets yields asymptotically minimax (up to a constant) estimates for functions sufficiently smooth outside the discontinuity points.

UDC: 621.391.1:519.27

Received: 08.12.2003
Revised: 16.03.2004


 English version:
Problems of Information Transmission, 2004, 40:3, 226–236

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