Title :
Adaptive echo cancellation based on third order cumulant
Author :
Asjadi, Hosien ; Ababafha, Mohammad
Author_Institution :
Dept. of Electr. Eng., K.N. Toosi Univ. of Technol., Tehran, Iran
Abstract :
A new adaptive algorithm is introduced for echo cancelling. In this method, we employ the third order cumulant to update the adaptive filter coefficients. We demonstrate, by means of simulations that the third order cumulant-based adaptive algorithm performs more effectively than the LMS algorithm particularly when the input signal is accompanied with Gaussian uncorrelated noise. Moreover, the proposed algorithm shows robustness to the variations of the step-size and input signal statistics
Keywords :
Gaussian noise; adaptive filters; adaptive signal processing; echo suppression; filtering theory; higher order statistics; Gaussian uncorrelated noise; LMS algorithm; adaptive algorithm; adaptive echo cancellation; adaptive filter coefficients; computational complexity; input signal; input signal statistics; step-size; third order cumulant; Adaptive algorithm; Adaptive filters; Echo cancellers; Equations; Gaussian noise; Higher order statistics; Least squares approximation; Modems; Noise cancellation; Telephony;
Conference_Titel :
Information, Communications and Signal Processing, 1997. ICICS., Proceedings of 1997 International Conference on
Print_ISBN :
0-7803-3676-3
DOI :
10.1109/ICICS.1997.647114
