DIGITAL IIR FILTER DESIGN FOR COMMUNICATION SYSTEMS BY DISCRETE-TIME VECTOR FITTING

被引：0
|
作者：
Lei, Chi-Un [1 ]
Wong, Ngai [1 ]
机构：
[1] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China
来源：
2009 16TH INTERNATIONAL CONFERENCE ON DIGITAL SIGNAL PROCESSING, VOLS 1 AND 2 | 2009年
关键词：
Discrete-Time Vector Fitting; IIR Filter; Filter Design; Complex Filter; MIMO Filter; FIR FILTERS; APPROXIMATION; COMPLEX;
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：
A recent digital system identification technique, called discrete-time vector fitting (VFz), is extended to two communication system filter design problems. The first one is the complex infinite-impulse-response (IIR) filter design. The second one is the common-denominator MIMO filter design. In the second problem, a combination of VFz and QR decomposition is proposed to reduce the computational complexity. Robustness in finite-precision arithmetic is imposed in both problems via a pole radius constraint. Numerical examples confirm that VFz exhibits fast convergence and produces highly accurate approximants.
引用
收藏
页码：149 / 153
页数：5
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