HIGH SPEED DIGITAL FILTERING BY CONVOLUTION APPROXIMATION
Abstract
This report discusses a technique for digital filtering by convolution approximation which is an acceptable compromise between accuracy and speed. This technique is applicable where high accuracy is not necessary and where a digital computer with elaborate processing capability is not available. Most requirements for digital filtering can be developed in terms of the approximations suggested in this report. By casting the required filter in a form that is most amenable to numerical computation, the accuracy of approximation is maximized. If power-of-two accuracy is insufficient there is a continuous tradeoff between accuracy and speed which involves range division and more bits in the approximation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1967
- Accession Number
- AD0652856
Entities
People
- E. B. Weis Jr.
Organizations
- Air Force Research Laboratory