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http://dx.doi.org/10.5573/ieek.2013.50.9.172

Modified FxLMS Algorithm for Active Noise Control and Its Real-Time Implementation  

Mu, Xiangbin (Department of Electrical, Electronics and Communication Engineering, Korea University of Technology and Education)
Ko, JinSeok (Department of Electrical, Electronics and Communication Engineering, Korea University of Technology and Education)
Rheem, JaeYeol (Department of Electrical, Electronics and Communication Engineering, Korea University of Technology and Education)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.9, 2013 , pp. 172-176 More about this Journal
Abstract
This paper presents a modified filtered-x least mean square (FxLMS) algorithm to improve the stability of active noise control (ANC) system in realistic environment. A real-time ANC system employing modified FxLMS is designed and implemented on digital signal processor (DSP) board. The ANC system is evaluated for cancelling various tonal frequency noises in the range from 100 to 500 Hz and the performance is measured in terms of sound pressure level (SPL) attenuation. Experiment results show that a quiet zone with maximum 20 dB SPL attenuation can be generated around the location of error microphone.
Keywords
Real-time ANC; DSP board; FxLMS; quiet zone;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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