In the condition of the widespread nonlinear echo and the non-Gaussian noise environment

the performance of the adaptive algorithm in the traditional echo canceller is degraded

which leads to the decline of the echo cancellation effect. In this paper

aiming at this question

a collaborative functional link adaptive filtering echo cancellation method based on the minimum dispersion criterion is proposed.In this method

the weights of the linear and nonlinear functional expanded adaptive filters are updated by using a normalized minimum

l

p

norm algorithm

and the output signals are cooperatively combined to eliminate the nonlinear echo. The simulation results show that the proposed method can achieve higher echo return loss enhancement in the p

resence of the

α

-stable distributed noise and the nonlinear echo.