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Design of stable IIR digital filters with equiripple passbands and peak-constrained least-squares stopbands

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1 Author(s)
Lu, W.-S. ; Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

This paper describes an algorithmic development for the design of stable infinite impulse response (IIR) digital filters with equiripple passbands and peak-constrained least-squares stopbands. Central to the development is a re-formulation of the design problem as an iterative quadratic programming problem where the stability and equiripple passbands and peak-constrained requirements are met by imposing a system of linear inequality constraints while the LSS property is satisfied by minimizing a weighted least-squares type objective function

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Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on  (Volume:46 ,  Issue: 11 )