Type II, III, and IV Linear-Phase FIR Structures Based on Cardinal Filters

Peng Hua Wang*, Bo You Yu, Po Ning Chen

*Corresponding author for this work

研究成果: Article同行評審

摘要

Novel structures of type II, III, and IV linear-phase finite impulse response (FIR) systems are proposed. It is constituted of a linear combination of basic sub-filters, called cardinal filters, with weighting coefficients equal to the derivatives of the system amplitude response at a prescribed frequency. Since the cardinal filters can be synthesized via recursive closed-form expressions, regardless of the desired system amplitude response, the proposed structure provides a universal design for arbitrary derivative-constrained linear-phase FIR filters. Design examples of maximally flat filters show that further improvement by combining derivative constraints with the least squared error optimization technique can be obtained.

原文English
文章編號8610214
頁(從 - 到)1920-1924
頁數5
期刊IEEE Transactions on Circuits and Systems I: Regular Papers
66
發行號11
DOIs
出版狀態Published - 十一月 2019

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