DESIGN OF 2-DIMENSIONAL FIR DIGITAL-FILTERS BY MCCLELLAN TRANSFORMATION AND LEAST-SQUARES CONTOUR MAPPING

被引：17
|
作者：
PEI, SC
SHYU, JJ
机构：
[1] Department of Electrical Engineering, National Taiwan University, Taipei
[2] Department of Computer Science and Engineering, Tatung Institute of Technology, Taipei
来源：
SIGNAL PROCESSING | 1995年 / 44卷 / 01期
关键词：
ANALYTICAL LEAST-SQUARES APPROACH; MCCLELLAN TRANSFORMATION; 2-D FIR DIGITAL FILTER; FAN-TYPE FILTER; 2-D COMPLEX FILTER;
D O I：
10.1016/0165-1684(95)00012-3
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：
A new method for searching the coefficients of the McClellan transformation is proposed for designing 2-D FIR digital filters in this paper. It can design arbitrary shape transformation contours to map from 1-D prototypes to 2-D FIR filters very effectively. Certain conditions are composed such that the scaling problem of the transformation can be avoided. Also, a new generalized McClellan transformation is presented, so it can be applied to design 2-D filters with complex coefficients. Several examples including fan filters with arbitrary inclination, elliptically symmetric filters with arbitrary orientation, and full-plane complex filters are presented, which demonstrates the effectiveness of this method.
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页码：19 / 26
页数：8
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