DESIGN AND IMPLEMENTATION OF A 2-D LINEAR PHASE-IIR FILTER USING SYMBOLIC COMPUTATION ROUTINES

Bhattacharya S.; Ray NC.; Sinha S.Bhattacharya D.

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DESIGN AND IMPLEMENTATION OF A 2-D LINEAR PHASE-IIR FILTER USING SYMBOLIC COMPUTATION ROUTINES

机译：DESIGN AND IMPLEMENTATION OF A 2-D LINEAR PHASE-IIR FILTER USING SYMBOLIC COMPUTATION ROUTINES

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摘要

A fully automated algorithm for designing two-dimensional IIR recursive filters with an approximately linear phase has been developed. Complete separability of the magnitude and phase generating transfer functions is assumed. An extension of the Chebyshev filter design algorithm has been used to design the magnitude transfer function and a specifiable number of allpass sections equalize the group delay. Symbolic computation routines have been used with the proposed algorithm to reduce algebraic computational burden. Low-pass filters of low orders have been realized and applied on laboratory condition images using an easy recursive reconstruction algorithm.

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《Signal Processing: The Official Publication of the European Association for Signal Processing (EURASIP)》 |1995年第1期|87-95|共9页
作者
Bhattacharya S.; Ray NC.; Sinha S.Bhattacharya D.;
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作者单位

INDIAN INST TECHNOL DEPT ELECT ENGN KHARAGPUR 721302 W BENGAL INDIA;

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原文格式 PDF
正文语种英语
中图分类通信;
关键词
Allpass; Group delay; Iir; Linear phase; Low-pass; L2-norm; Optimization; Symbolic computation; Symmetry;

DESIGN AND IMPLEMENTATION OF A 2-D LINEAR PHASE-IIR FILTER USING SYMBOLIC COMPUTATION ROUTINES

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