In order to eliminate the signal aliasing of multi-channel Surface Electromyography(SEMG),this paper proposes a new separation method based on the referenced cumulant on the time-frequency.First,the technique calculates the cumulant matrices through taking the observation signals as the cross-reference signals.;second,gets the time-scale cumulant matrices through the time-frequency analysis;third,constructs the contrast function by the time-scale cumulant matrices.The estimation of the SEMG can be performed...