用遗传算法设计二维对称FIR数字滤波器

The 2004 IEEE Asia-Pacific Conference on Circuits and Systems, 2004. Proceedings. Pub Date : 2004-12-06 DOI:10.1109/APCCAS.2004.1412784

Shian-Tang Tzeng

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引用次数: 11

摘要

除了设计正交对称线性相位二维FIR数字滤波器外，本文还提出了各种线性相位二维滤波器的设计。结果表明，根据二维序列在两个方向上的对称/不对称及其滤波长度(偶或奇)，可以考虑16种情况。用遗传算法实现二维FIR数字滤波器时，将这些二维序列对应的震级响应类型列成完整的表

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Design of 2D FIR digital filters with symmetric properties by genetic algorithm approach

Besides the design of quadrantally symmetric linear-phase 2D FIR digital filters, a wide variety of linear-phase 2D filter designs are proposed in this paper. It is shown that there are 16 types of cases to be considered according to the symmetry/antisymmetry of 2D sequences in both directions and their filter lengths (even or odd). The corresponding types of magnitude responses are tabulated into a complete table if these 2D sequences are used to realize 2D FIR digital filters by genetic algorithm (GA) approach

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The 2004 IEEE Asia-Pacific Conference on Circuits and Systems, 2004. Proceedings.

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