Computer-Aided Design of Recursive Digital Notch-Filter with One Coefficient.

摘要

A procedure for the design of a recursive digital notch-filter with one coefficient is proposed. This type of filter can be implemented readily with CCD (charge-coupled device). The effect of coefficient on notch-gain, notch-width, and passband-ripple is examined. The computer implementation is tested for second, third, and sixth order notch-filters and the optimum coefficient is found based upon limited computer wordlength. (Author)