Error-feedback digital filters
- 7 June 1979
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 15 (12) , 348-349
- https://doi.org/10.1049/el:19790247
Abstract
It is shown that the recursive digital filter1 employing the residue retention techniques of digital differential analysers and error-feedback digital filters2.3 are functionally equivalent. However, the error-feedback formulation can be readily extended to higher-order filters and clearly shows when error feedback should be used.Keywords
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