Wavelet maxima reconstruction by conjugate gradient

被引：4

作者：

Law, NF ^{[1
]}

Liew, AWC

机构：

[1] Chinese Univ Hong Kong, Dept Mech & Automat Engn, Shatin, Hong Kong

[2] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong

来源：

ELECTRONICS LETTERS | 1997年 / 33卷 / 23期

关键词：

signal reconstruction; wavelet transforms;

D O I：

10.1049/el:19971338

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The problem of reconstructing a signal from its wavelet transform modulus maxima representation can be formulated as minimising a quadratic term using the conjugate gradient technique. It is shown that this formulation obtains the same result as the accelerated frame algorithm which starts from the Frame theory. A method to avoid super-resolution which is inherent in this problem is proposed, based on the measure of the regularity of the signal in the wavelet domain.

引用

页码：1928 / 1929

页数：2

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