Generalized Direct-Form II Realization of 2-D Separable-Denominator Digital Filters

被引：1

作者：

Hinamoto, Takao ^{[1
]}

Doi, Akimitsu ^{[2
]}

Lu, Wu-Sheng ^{[3
]}

机构：

[1] Hiroshima Univ, Higashihiroshima 7398527, Japan

[2] Hiroshima Inst Technol, Hiroshima 7315193, Japan

[3] Univ Victoria, Victoria, BC V8W 3P6, Canada

来源：

2018 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) | 2018年

关键词：

ROUNDOFF NOISE MINIMIZATION; STATE-SPACE REALIZATION; DESIGN;

D O I：

10.1109/ISCAS.2018.8351081

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：

In this paper, we explore generalized direct-form II realization of two-dimensional separable-denominator digital filters of order (m, n) based on the concept of polynomial operators, where we deal with a model with 3(m + n)+ mn + 1 fixed parameters plus m + n free parameters. An l(2)-scaling method is introduced by utilizing different coupling coefficients at different branch nodes to avoid overflow. An expression for the roundoff noise gain in the realization is also examined. It is shown that the roundoff noise gain can be minimized with respect to the m + n free parameters by means of exhaustive search in a finite element space.

引用

页数：5

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