A Multiple Loop Feedback Gm-C Bandpass Filter for Wavelet Transform Implementation

被引：1

作者：

Zhao, Wenshan ^{[1
,2
]}

Sun, Yichuang ^{[1
]}

Zhu, Xi ^{[1
]}

He, Yigang ^{[2
]}

机构：

[1] Univ Hertfordshire, Sch ECEE, Hatfield AL10 9AB, Herts, England

[2] Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Hunan, Peoples R China

来源：

2009 52ND IEEE INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1 AND 2 | 2009年

关键词：

REALIZATION; SIGNALS;

D O I：

10.1109/MWSCAS.2009.5236140

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A general method for analogue implementation of high-frequency wavelet transform is proposed in which the wavelet transform is synthesized by a bank of Gm-C bandpass filters whose impulse responses are the mother wavelet and its dilations. The proposed approach employs the inverse follow-the-leader-feedback multiple loop feedback structure for filter design to lower the magnitude sensitivity and facilitate the arbitrary rational function realization. The Marr wavelet is used as an example in this paper to illustrate design details. The wavelet filter is simulated using TSMC 1.8V 0.18 mu m CMOS technology. Simulation results show performance values obtained.

引用

页码：106 / +

页数：2

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