Error spectrum shaping in 2D state-space digital filters using error diagonal feedback

被引：0
|
作者：
Hinamoto, T [1 ]
Karino, S
Kuroda, N
机构：
[1] Hiroshima Univ, Fac Engn, Higashi Kurume, Tokyo 739, Japan
[2] Nippondenso Corp, Kariya, Aichi 448, Japan
[3] Matsushita Elect Ind Co Ltd, Kadoma, Osaka 571, Japan
来源：
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART III-FUNDAMENTAL ELECTRONIC SCIENCE | 1998年 / 81卷 / 01期
关键词：
error spectrum shaping; error diagonal feedback; 2D digital filter; Roesser model; vector quantizer;
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：
This paper discusses error spectrum shaping for 2D state-space digital filters. In order to reduce cost by reducing the total number of parameters, a method of analytic design is proposed in which the error feedback coefficient is specified by a diagonal matrix. The proposed algorithm has the feature that the optimal error feedback coefficient can be designed analytically in closed form by minimizing a quadratic form. The validity of the proposed algorithm is demonstrated with a numerical example. The noise reduction effect where the subdecimal part of the optimal coefficient is rounded by the power of 2 is also demonstrated. (C) 1998 Scripta Technica.
引用
收藏
页码：79 / 90
页数：12
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