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LLL Algorithm and the Optimal Finite Wordlength FIR Design | IEEE Journals & Magazine | IEEE Xplore

LLL Algorithm and the Optimal Finite Wordlength FIR Design


Abstract:

In practical finite-impulse-response (FIR) digital filter applications, it is often necessary to represent the filter coefficients with a finite number of bits. The finit...Show More

Abstract:

In practical finite-impulse-response (FIR) digital filter applications, it is often necessary to represent the filter coefficients with a finite number of bits. The finite wordlength restriction increases the filter deviation. This increase can be reduced substantially if the optimal finite wordlength coefficients are used. The time needed to compute these coefficients is greatly reduced with the help of a lower bound on the deviation increase. Derivation of an improved lower bound that uses the well-known LLL algorithm is presented in this correspondence.
Published in: IEEE Transactions on Signal Processing ( Volume: 60, Issue: 3, March 2012)
Page(s): 1493 - 1498
Date of Publication: 02 December 2011

ISSN Information:


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