Explicit formula for filter function of maximally flat nonrecursive digital filters
Abstract
A general formula for the filter function of maximally flat FIR digital filters using modified Krawtchouk polynomials is presented. This formula permits a direct calculation of the filter weights. It is especially advantageous for either high or low passband/stopband width ratios.
- Publication:
-
Electronics Letters
- Pub Date:
- November 1980
- DOI:
- Bibcode:
- 1980ElL....16..905B
- Keywords:
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- Digital Filters;
- Fir Filters;
- Low Pass Filters;
- Polynomials;
- Electronics and Electrical Engineering