Design of recursive digital filters with magnitude specifications

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作者
Alkhairy, A
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O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
In this paper, we present an algorithm for the design of an optimal recursive digital filter with a specified magnitude frequency response. The method requires O(N-2) computations to design a filter of size N, and exhibits numerical stability and quadratic convergence to the optimum within five iterations. The multiple exchange iterative algorithm uses the Chebyshev error criterion in the magnitude-squared frequency response domain, and has been developed using the interpolation theory and the alternation theorem for rational function approximation.
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页码:2225 / 2227
页数:3
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