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http://dx.doi.org/10.7840/KICS.2011.36C.6.343

Performance Improvement of ANC System for Wireless Headset  

Park, Sung-Jin (부산대학교 전자전기공학과 통신시스템 연구실)
Kim, Suk-Chan (부산대학교 전자전기공학과 통신시스템 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.36, no.6C, 2011 , pp. 343-348 More about this Journal
Abstract
This paper introduces a design for real time wireless headset using ANC (active noise control) system based on NFxLMS adaptive filter algorithm. The training time of the proposed system is significantly reduced by using the RMS delay spread of a channel as an error correction parameter, and convergence rate of the FxLMS filter has been improved with updating the coefficients of the NFxLMS filter, which we have got during the training process. Our system has shorter training time and better convergence rate at the same noise reduction level than the conventional system under real noisy environment.
Keywords
NFxLMS; active noise control; adaptive filter rate of convergence; RMS delay spread;
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