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[Keyword] delayless subband active noise control(1hit)

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  • Delayless Subband Adaptive Filter for Active Wideband Noise Control

    Qinghua LIU  Shan OUYANG  Junzheng JIANG  

     
    LETTER-Noise and Vibration

      Vol:
    E96-A No:5
      Page(s):
    986-990

    The wideband noise controlling performance of the delayless subband adaptive filtering technique is affected by the group delay and in-band aliasing distortion of analysis filter banks. A method of recursive second-order cone programming is proposed to design the uniform DFT modulated analysis filter banks, with a small in-band aliasing error and low group delay. Simulation results show that the noise controlling performance is improved with small residual noise power spectra, a high noise attenuation level and fast convergence rate.

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