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An approach to the realization of a programmable FIR digital filter

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3 Author(s)
Nakamura, S. ; Tokyo Denki University, Chiyoda-ku, Tokyo, Japan ; Yasuda, S. ; Mitra, S.K.

It is shown that by varying the tap coefficients of a generalized transversal filter structure consisting of a tapped cascade of identical FIR subfilters, it is possible to implement an FIR digital filter with adjustable magnitude response. By choosing a few different FIR structures as subfilters, an overall FIR filter with a wide variation in magnitude response can be realized. An implementation of the proposed programmable FIR filter using a commercially available DSP chip is illustrated along with experimental results.

Published in:

Acoustics, Speech and Signal Processing, IEEE Transactions on  (Volume:33 ,  Issue: 3 )

Date of Publication:

Jun 1985

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