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Efficient design of recursive filters satisfying prescribed magnitude and phase specifications

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2 Author(s)
Sunder, S. ; Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada ; Ramachandran, V.

A method for the design of recursive filters satisfying prescribed specifications using a least-squares approach is presented. In this method, a weighted mean-square error based on the difference between desired and actual frequency responses is formulated in a quadratic form. Quadratic programming is employed wherein the constraint on stability is accommodated. The proposed method is compared with the linear programming approach in terms of the computational complexity, mean-square error, and group delay error. It is shown that the proposed method has a much lower computational complexity and yields filters that have lower mean-square and group delay errors compared to those obtained using the linear programming approach

Published in:

Communications, Computers and Signal Processing, 1993., IEEE Pacific Rim Conference on  (Volume:2 )

Date of Conference:

19-21 May 1993