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Higher order Σ-Δ modulation encoding for design of multiplierless FIR filters

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2 Author(s)
Chao-Liang Chen ; Sch. of Electron. Commun. & Electr. Eng., Univ. of Plymouth, UK ; A. N. Willson

A technique is presented for the design of multiplierless FIR filters with canonical signed digit (CSD) coefficients based on higher-order Σ-Δ modulation with a CSD quantiser (Σ-Δ-CSD). The proposed algorithm requires little computational resources and is capable of designing more types of filters and providing better performance than the previously proposed first-order method

Published in:

Electronics Letters  (Volume:34 ,  Issue: 24 )