Journal of the Korean Institute of Telematics and Electronics (대한전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Study on the Design of Multiplierless FIR Filters

Multiplierless FIR여파기의 설계에 관한 연구

  • Shin, Jae Ho (Dept. of Elec. Eng., Seoul National Univ.) ;
  • Lee, Chong Kak (Dept. of Elec. Eng., Seoul National Univ.)
  • 신재호 (서울대학교 전자공학과) ;
  • 이종각 (서울대학교 전자공학과)
  • Published : 1986.02.01
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Abstract

In this paper, we propose the MDM algorithm by which one can desing an FIR filter that is maximally flat and requires no multiplication. We use the modified MAXFLAT subroutive of Kaiser to achieve the maximally-flat characteristics. The filter coefficients are encoded in MDM-code and the optimal stepsize is determined the steepest- descent method. Simulation results shows that the FIR filter designed is almost maximally-flat in passband, but has about -30dB ripples in stopband due to MDM quantization error.

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