奇异谱分解matlab代码，对信号信息特征值分解，得到不同特征向量的子序列，筛选主要权重的子序列进行重构，平滑原始型号，起到降噪和过滤的作用。(The singular spectrum decomposes the matlab code, decomposes the eigenvalues of the signal information, obtains subsequences of different eigenvectors, filters the sub-sequences of the main weights for reconstruction, smoothes the original model, and plays the role of noise reduction and filtering.)