Beginning in the late 1970s and continuing today, the sliding mode control has received plenty of attention due to its insensitivity to disturbances and parameter variations. The well known sliding mode control is a particular type of Variable St

用Cholesky分解求ARMA模型的参数并作谱估计.分两步，具体可参见《数字信号处理-理论、算法与实现》-Cholesky decomposition ask using ARMA model parameters and spectral estimation in two steps for more details, see. " Digital Signal Processing- Theory, Algorithm and Implementation"