SYNTHESIS OF BIRECIPROCAL WAVE DIGITAL FILTERS WITH EQUIRIPPLE AMPLITUDE AND PHASE (WedPmPO1)

Author(s) : Mohamed Yaseen (University of Assiut, Egypt, Egypt)

Abstract : The paper presents a new and robust simultaneous approximation method to synthesize wave digital bireciprocal filter structures satisfying arbitrary amplitude and linear phase specifications. It is relying on the translation of the amplitude and phase specifications into corresponding specifications for the sum and difference phase functions of the two branch bireciprocal polynomials. Consequently, these difference and sum functions are approximated alternatively and itertively until they converge into their optimal response.Interpolation method combined with Remez-exchange algorithm is employed for this purpose Accordingly, the final coefficient values of the two branch polynomials are determined and the wave digital realization is carried out.

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