结合PCA的尺度不变特征变换(SIFT)算法，能量熵的计算，含噪脉冲信号进行相关检测,供做算法研究人员参考，预报误差法参数辨识-松弛的思想，仿真效率很高的。- Combined with PCA scale invariant feature transform (SIFT) algorithm, Energy entropy calculation, Noisy pulse correlation detection signal, Algorithm for researchers to do reference, Prediction Error Method for Parameter Identification- the idea of relaxation, High simulation efficiency.