A new structure and design method for variable fractional-delay 2-D FIR digital filters

被引：0

作者：

Jong-Jy Shyu

Soo-Chang Pei

Yun-Da Huang

Yu-Shiang Chen

机构：

[1] National University of Kaohsiung,Department of Electrical Engineering

[2] National Taiwan University,Graduate Institute of Communication Engineering

来源：

Multidimensional Systems and Signal Processing | 2014年 / 25卷

关键词：

Farrow structure; Variable fractional-delay filter ; 2-D FIR filter; Least-squares method; 2-D quadrantally symmetric filter; Prefilter;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this paper, a new structure and design method are proposed for variable fractional-delay (VFD) 2-D FIR digital filters. Basing on the Taylor series expansion of the desired frequency response, a prefilter–subfilter cascaded structure can be derived. For the 1-D differentiating prefilters and the 2-D quadrantally symmetric subfilters, they can be designed simply by the least-squares method. Design examples show that the required number of independent coefficients of the proposed system is much less than that of the existing structure while the performance of the designed VFD 2-D filters is still better under the cost of larger delays.

引用

页码：511 / 529

页数：18

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