CEEMDAN是对EEMD的改进算法，EEMD算法通过加入噪声来减小EMD的模态效应，CEEMDAN算法通过加入自适应的噪声来进一步减小模态效应，而且具有更好的收敛性。(CEEMDAN is an improved algorithm of EEMD, the EEMD algorithm by adding noise to reduce modal effects of EMD, CEEMDAN algorithm by adding noise adaptive mode to further reduce the effect, but also has better convergence.)