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Durrani-Chapman Optimal All-Pole Lowpass Filter Design 1.0

  Date Added: April 18, 2013  |  Visits: 242

Durrani-Chapman Optimal All-Pole Lowpass Filter Design

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The code was generated according toT.S. Durrani, and R. Chapman. Optimal All-Pole Filter Design Based on Discrete Prolate Spheroidal Sequences. IEEE Transactions on Acoustics, Speech and Signal processing, Vol ASSP-32, No.4, August 1984.This filter design uses discrete prolate spheroidal sequences (Slepian sequences) to optimize the magnitude response function in the passband under a quadratic constraint. Slepians are unique in their ability to concentrate power in a specified bandwidth.This filter is all-pole, near-linear in phase (which is why it should be forward/backward filtered on implementation if nonlinear phase shift is not acceptable.)This filter is great. Give it a try. I will be working on extending this code to a highpass, bandpass, and bandstop filter design, as is suggested in the paper, within the next few weeks.

Requirements: No special requirements
Platforms: Matlab
Keyword: Ability Allpole Bandpass Bandstop Bandwidththis Concentrate Constraint Filtered Forwardbackward Nearlinear Phase Power Quadratic Slepians Suggested Unique
Users rating: 0/10

License: Freeware Size: 10 KB
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