NDLI: Mean-sense behavior of filtered-X LMS algorithm in the presence of frequency mismatch

Content Provider	IEEE Xplore Digital Library
Author	Jian Liu Jinwei Sun Yegui Xiao
Copyright Year	2012
Description	Author affiliation: Dept. of Automatic Testing and Control, Harbin Institute of Technology, Box 351, Harbin Institute of Technology, Harbin 150001, China (Jinwei Sun) \|\| Dept. of Measurement and Testing Engineering, Nanjing University of Aeronautics and Astronautics, 29 YuDao St., Nanjing 210016, China (Jian Liu) \|\| Dept. of Management and Information Systems, Prefectural University of Hiroshima, 1-1-71 Ujina-Higashi, Minami-ku, Hiroshima 734-8558, Japan (Yegui Xiao)
Abstract	Narrowband active noise control (ANC) systems are promising in suppressing sinusoidal noises, especially the lower frequency portion generated by rotating machines. In real-life applications, when a non-acoustic sensor is used to acquire the synchronization signal from which the primary noise frequencies are identified, the frequencies of reference sinusoids generated by the cosine wave generator usually contain errors due to sensor aging, fatigue accumulation, etc. That is frequency mismatch (FM) may exist between the reference signal and the primary noise. This paper analyzes performance degradation of the typical filtered-X LMS (FXLMS)-based narrowband ANC system in the presence of FM by investigating convergence of the system in the mean sense. The obtained analytical results enrich our understanding of influence of the FM on system performance. Computer simulations are conducted to verify the analysis results.
Starting Page	374
Ending Page	379
File Size	364383
Page Count	6
File Format	PDF
ISBN	9781467350839
e-ISBN	9781467350822
e-ISBN	9781467350815
DOI	10.1109/ISPACS.2012.6473514
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-04
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency modulation Noise Narrowband Mathematical model Signal processing algorithms Difference equations Stability analysis convergence analysis Narrowband active noise control filtered-X LMS (FXLMS) frequency mismatch (FM)
Content Type	Text
Resource Type	Article

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