Adaptive IIR Notch Filter with Modified Algorithm for Echo Cancellation
S. Sukhumalchayaphong and C. Benjangkaprasert
Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand 10520
Abstract—In this paper an adaptive echo canceller is presented, based on adaptive IIR notch filter with a new algorithm, for the echo cancellation in telephone network. Where the new algorithm is employs the modified sign-regressor algorithm and works with the autocorrelation of the error signal to estimate the parameter, resulting in obtaining good estimate of parameter for the echo canceller. The simulation results show that the performance of the proposed canceller outperforms the canceller with the classical LMS, SR and RLS algorithms in terms of Echo Return Loss Enhancement (ERLE).
Index Terms—echo canceller, adaptive algorithm, IIR notch filter
Cite: S. Sukhumalchayaphong and C. Benjangkaprasert, "Adaptive IIR Notch Filter with Modified Algorithm for Echo Cancellation," International Journal of Signal Processing Systems, Vol. 5, No. 2, pp. 75-78, June 2017. doi: 10.18178/ijsps.5.2.75-78
Cite: S. Sukhumalchayaphong and C. Benjangkaprasert, "Adaptive IIR Notch Filter with Modified Algorithm for Echo Cancellation," International Journal of Signal Processing Systems, Vol. 5, No. 2, pp. 75-78, June 2017. doi: 10.18178/ijsps.5.2.75-78