Minimax design of factorable Nyquist filters

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Abstract

The generation of zero-phase FIR (finite impulse response) low-pass Nyquist filters that can be split into minimum- and maximum-phase parts is considered. Two factorable minimax design methods are given. These methods use the McClellan-Parks algorithm as a first step to control the stopband behavior. The time domain constraints, imposed by solving a linear system of equations, determine the passband response. The final filter exhibits equiripple stopband behavior. The advantages of these methods are that the minimum- and maximum-phase parts are obtained without direct factorization and that arbitrary frequency weighting can be easily incorporated to allow for a nonequiripple behavior. The design approach is compared with other methods, and a practical design that conforms to a CCITT voiceband modem specification is shown.

Original languageEnglish (US)
Pages (from-to)1247-1250
Number of pages4
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume2
StatePublished - Dec 1 1989
Externally publishedYes
Event1989 International Conference on Acoustics, Speech, and Signal Processing - Glasgow, Scotland
Duration: May 23 1989May 26 1989

All Science Journal Classification (ASJC) codes

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

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