Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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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)
  • Received : 2013.08.09
  • Published : 2013.09.25
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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.

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References

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  1. Quiet Zone Enhancement for a Target Location Using an Improved Virtual Sensing Algorithm vol.6, pp.4, 2017, https://doi.org/10.3390/electronics6040076