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A design technique for high order digital differentiators

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1 Author(s)
Medlin, G.W. ; Dept. of Electr. & Comput. Eng., South Carolina Univ., Columbia, SC, USA

A design technique for high-order digital differentiators is presented. The differentiators have linear phase and are maximally accurate. Their design is based on a minimization procedure for the integrated square error of the frequency response over designated approximation bands. The optimized design is formulated as a quadratic programming problem and the closed-form solution for the filter coefficients is presented. The inclusion of stopbands in the design process is discussed. Examples are included which demonstrate the effectiveness of the design technique

Published in:

Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on

Date of Conference:

3-6 Apr 1990