提出了一种新的FIR数字滤波器最小滤波器长度估计公式

ICSP '98. 1998 Fourth International Conference on Signal Processing (Cat. No.98TH8344) Pub Date : 1998-12-01 DOI:10.1109/ICOSP.1998.770158

K. Ichige, M. Iwaki, R. Ishii

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引用次数: 1

摘要

本文给出了最优FIR低通数字滤波器(基于极大极小准则)最小滤波器长度的精确估计公式。对于通带和阻带波纹相同的特殊情况，给出了一个精确的估计公式。现在我们展开一般情况下的公式。通过与常规公式的比较，对所提公式的精度进行了评价。我们还描述了如何将所提出的公式应用于其他类型滤波器的设计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A new estimation formula for minimum filter length of optimum FIR digital filters

This paper presents an accurate estimation formula for the minimum filter length of optimum (the minimax criterion-based) FIR low-pass digital filters. The authors have proposed an accurate estimation formula for the particular case that the passband and stopband ripples are identical. Now we expand the formula for the general case. The accuracy of the proposed formula is evaluated in comparison with that of the conventional formulae. We also describe how to apply the proposed formula for the design of other types of filters.

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来源期刊

ICSP '98. 1998 Fourth International Conference on Signal Processing (Cat. No.98TH8344)

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