Adaptive lowpass filters

被引：0

作者：

Yamaguchi, K ^{[1
]}

Watanabe, E ^{[1
]}

Nishihara, A ^{[1
]}

机构：

[1] Tokyo Inst Technol, Tokyo 152, Japan

来源：

PROCEEDINGS OF THE 2004 IEEE ASIA-PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS, VOL 1 AND 2: SOC DESIGN FOR UBIQUITOUS INFORMATION TECHNOLOGY | 2004年

关键词：

D O I：

暂无

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 a design of first-order adaptive infinite inpulse response (IIR) lowpass filters to find the passband-edge frequencies of lowpass signals We first show that gradient algorithms cannot directly be applied because the mean square errors (MSEs) of output of IIR lowpass filters have no extremum. Then we introduce a weighting function to be multiplied with the transfer function so that MSE has an extremum. Structures to realize the proposed adaptive lowpass filters are shown. Simulations confirm the convergency of the proposed algorithms.

引用

页码：509 / 512

页数：4

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