用于解决EMD分解过程中存在的模态混叠问题，采用总体平均经验模态分解算法，同传统EMD相比，分解效果更好。(To solve the problem of modal aliasing existing in the EMD decomposition process, the total average empirical mode decomposition (EMD) algorithm is adopted, and the decomposition effect is better than that of the traditional EMD.)