A Partial MILP Algorithm for the Design of Linear Phase FIR Filters with SPT Coefficients

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概要

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• This article presents a three-step method for designing linear phase FIR filters with signed-powers-of-two (SPT) coefficients. In Step one, a prototype optimal FIR filter is designed by the Remez exchange algorithm. In Step two, a scaling factor is selected by employing simple ad-hoc rules. In Step three, each coefficient of the prototype filter is scaled by the scaling factor and is quantized coarsely as the canonic-signed-digit (CSD) representation. Then, a mixed-integer-linear-programming (MILP) algorithm is applied to three least significant digits (LSDs) of the filter's coefficients to reduce the number of SPT terms. Design examples demonstrate that the proposed algorithm is able to produce linear phase fixed-point FIR filters using fewer SPT terms than the existing methods under the same normalized peak ripple magnitude (NPRM) specification.

• 社団法人電子情報通信学会の論文
• 2002-10-01

著者

• Yao Chia-yu

  Department Of Electrical Engineering National Taiwan University Of Science And Technology

• Yao Chia-yu

  Department Of Electronic Engineering Huafan University

• CHIEN Chiang-Ju

  Department of Electronic Engineering, Huafan University

• Chien Chiang-ju

  Department Of Electronic Engineering Huafan University

関連論文

• A Partial MILP Algorithm for the Design of Linear Phase FIR Filters with SPT Coefficients
• The Design of Square-Root-Raised-Cosine FIR Filters by an Iterative Technique(Digital Signal Processing)

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