A Novel Module-Sign Low-Power Implementation for the DLMS Adaptive Filter With Low Steady-State Error

Gennaro Di Meo,Davide De Caro,Gerardo Saggese,Ettore Napoli,Nicola Petra,Antonio Giuseppe Maria Strollo

IEEE Transactions on Circuits and Systems I: Regular Papers（2022）

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摘要

In this paper, a novel implementation is proposed for the Delayed LMS (DLMS) filter, able to reduce the power dissipation while preserving regime performances. The approach relies on the observation that the error signal is small in magnitude and oscillates around zero when the circuit is close to the convergence point. Therefore, the most significant bits of the error signal continuously toggle f...

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关键词

Finite impulse response filters,Approximation algorithms,Signal processing algorithms,Registers,Switches,Convergence,Table lookup

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