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
收藏
页码：1928 / 1929
页数：2
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