Bias-compensated LMS estimation for adaptive noisy FIR filtering

Xu Tingting, Jia Lijuan, Kanae Shunshoku

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Citations (Scopus)

Abstract

We investigate the parameter estimation of adaptive FIR filter with noisy input. When the filter input is corrupted by additive noise, the parameter estimation of traditional LMS algorithm is biased. For the noise is unknown, we propose an input noise variance estimation method under unconstrained condition based on the LMS algorithm and combine the bias-compensated LMS (BCLMS) algorithm by removing the noise-induced bias. Simulation results show that our proposed algorithm has better estimate accuracy than the bias-compensated LMS algorithm with the input noise variance estimation under constrained condition, and provides an unbiased estimate of the filter parameters under any different noise levels.

Original languageEnglish
Title of host publication2015 54th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages81-85
Number of pages5
ISBN (Electronic)9784907764487
DOIs
Publication statusPublished - 30 Sept 2015
Event54th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2015 - Hangzhou, China
Duration: 28 Jul 201530 Jul 2015

Publication series

Name2015 54th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2015

Conference

Conference54th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2015
Country/TerritoryChina
CityHangzhou
Period28/07/1530/07/15

Keywords

  • Noise variance estimation
  • adaptive filtering
  • bias-compensated
  • least-mean-square (LMS)
  • parameter estimation

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