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Design of FIR filters combining the frequency-response masking and the WLS-Chebyshev approaches

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3 Author(s)
L. C. R. Barcellos ; COPPE, Univ. Federal do Rio de Janeiro, Brazil ; S. L. Netto ; P. S. R. Diniz

This paper presents an efficient method for designing FIR filters by combining the frequency-response masking (FRM) approach with the WLS-Chebyshev method. With the proposed method, the specifications for the base filter in the FRM approach can be relaxed. This is accomplished based on the ability of the WLS-Chebyshev method for finding a good compromise between the minimum attenuation and total energy within the filter's stopband. A typical design performed with the proposed method is included indicating that the total number of multiplications per output sample required is significantly reduced

Published in:

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on  (Volume:2 )

Date of Conference:

6-9 May 2001