Approximations of the inverse wavelet transform for analogue circuits

被引：2

作者：

Gurrola-Navarro, Marco A. ^{[1
]}

Medina-Vazquez, Agustin S. ^{[1
]}

Espinosa-Flores-Verdad, Guillermo ^{[2
]}

机构：

[1] Univ Guadalajara, CUCEI, Dept Elect, Guadalajara 44430, Jalisco, Mexico

[2] Inst Nacl Astrofis Opt & Electr, Puebla 72840, Mexico

来源：

IEICE ELECTRONICS EXPRESS | 2012年 / 9卷 / 24期

关键词：

wavelet transform; integrated circuits; analog circuits;

D O I：

10.1587/elex.9.1823

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：

We propose two approximations of the inverse wavelet transform implemented with a voltage adder and two analog filters. They work together with a set of scaled band-pass analog filters that perform the wavelet transform of a continuous time signal. With this approach an integrated circuit has been fabricated. On-chip measurements demonstrate signal to reconstruction error ratios up to 25.8 dB.

引用

页码：1823 / 1828

页数：6

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