Title :
A design technique for high order digital differentiators
Author :
Medlin, Gregory W.
Author_Institution :
Dept. of Electr. & Comput. Eng., South Carolina Univ., Columbia, SC, USA
Abstract :
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
Keywords :
differentiating circuits; digital filters; frequency response; quadratic programming; approximation bands; closed-form solution; design technique; differentiators; filter coefficients; frequency response; high order digital differentiators; integrated square error; linear phase; minimization; optimized design; quadratic programming; stopbands; Closed-form solution; Computer errors; Design engineering; Design optimization; Filters; Finite impulse response filter; Frequency measurement; Frequency response; Process design; Quadratic programming; Signal design;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.115607
