Stable IIR notch filter design with optimal pole placement | IEEE Journals & Magazine | IEEE Xplore

Stable IIR notch filter design with optimal pole placement


Abstract:

This paper presents a two-stage approach for designing an infinite impulse response (IIR) notch filter. First, the numerator of the transfer function of the IIR notch fil...Show More

Abstract:

This paper presents a two-stage approach for designing an infinite impulse response (IIR) notch filter. First, the numerator of the transfer function of the IIR notch filter is obtained by placing the zeros at the prescribed notch frequencies. Then, the denominator polynomial is determined by using an iterative scheme in which the optimal pole placements are found by solving a standard quadratic programming problem. For stability, the pole radius in the single notch filter design is specified by the designer, and in the multiple notch filter design, the pole radius is constrained by using the implications of Rouche's theorem. Examples are included to illustrate the effectiveness of the proposed techniques.
Published in: IEEE Transactions on Signal Processing ( Volume: 49, Issue: 11, November 2001)
Page(s): 2673 - 2681
Date of Publication: 30 November 2001

ISSN Information:


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