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Minimax design of nonlinear-phase FIR filters with prescribed phase error using an SCLS method

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3 Author(s)
Shaowei Zhang ; Sch. of Inf. Eng., Shandong Univ. at Weihai, Weihai, China ; Dong Xu ; Xiaoping Lai

Minimax design of nonlinear-phase FIR Alters with prescribed phase error is considered in this paper. By using a sequential constrained least-squares (SCLS) method, the minimax design is converted into a series of constrained least-squares problems, where the upper-bounds imposed on the frequency response (FR) error converge exponentially to the minimal value of the maximum FR error. Design examples demonstrate the effectiveness of the SCLS method. Comparisons of the performances of the filters designed by the SCLS and some other methods are provided.

Published in:

Signal Processing (ICSP), 2010 IEEE 10th International Conference on

Date of Conference:

24-28 Oct. 2010