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Multiplierless implementations of adaptive FIR filters

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4 Author(s)
DeBrunner, L.S. ; Sch. of Electr. & Comput. Eng., Oklahoma Univ., Norman, OK, USA ; Wang, Y. ; DeBrunner, V. ; Tull, M.

Implementations of adaptive filters using field programmable gate arrays require the ability to change the coefficient values of the filter based on the adaptation algorithm. Multiplierless filter designs rely on a priori knowledge of the coefficient values to implement the filter using hard-wired shifts and additions. We describe a multiplierless approach to adaptive filter implementation that reduces the complexity from quadratic to linear in the number of bits.

Published in:

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on  (Volume:2 )

Date of Conference:

9-12 Nov. 2003