Block implementation of high-speed IIR adaptive noise canceller

被引：0
|
作者：
Wu, XH
Li, S
Takahashi, N
Takebe, T
机构：
来源：
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 1997年 / E80A卷 / 03期
关键词：
adaptive filter; digital filter; block implementation; noise canceller; stochastic gradient method;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a block implementation of highspeed IIR adaptive noise canceller is proposed. First, the block difference equation of an IIR filter is derived by the difference equation for high-speed signal processing. It is shown that the computational complexity for updating the coefficients of IIR adaptive filter can be reduced by using the relations between the elements of coefficient matrices of block difference equation. Secondly, the block implementation of IIR adaptive noise canceller is proposed in which the convergence rate is increased by successively adjusting filter Q-factors. Finally, the usefulness of proposed block implementation is verified by the computer simulations.
引用
收藏
页码：466 / 471
页数：6
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