A robust variable step size adaptive algorithm is proposed, who can effectively adjust the step size by utilizing the correlation characteristic of output signal with previous iteration error signal.

• 针对变步长VSSLMS(Variable Step Size LMS)算法对噪声敏感问题,利用误差信号的相关值代替误差信号来调节步长,提出一种稳健的变步长自适应算法(Robust Variable Step-Size LMS:RVSSLMS)。