Novel coding approach to high throughput rate FIR filter implementation

A. H. Tewfik, G. E. Sobelman

Research output: Contribution to journalArticlepeer-review


The implementation of high throughput rate finite impulse response filters is studied using a geometrical coding point of view. The output of the filter is recognized as the projection of an arbitrary multidimensional input vector of data values onto a fixed coefficient vector. The fixed vector induces a partition of the space of possible input vectors into multidimensional strips. All vectors lying in a single strip produce the same filter output. Based on this observation, we propose to compute the output of the filter at each time instant by finding a codeword that lies in the same strip as the input vector and reading a look-up table entry that corresponds to the codeword.

Original languageEnglish (US)
Pages (from-to)29-34
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Dec 6 1989


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