希尔伯特黄变换(Hilbert-Huang)原理、HHT求时频谱、边际谱
https://blog.csdn.net/weixin_41406486/article/details/104775769
Hilbert-Huang Transform: matlab 希尔伯特-黄变换: matlab实现
https://www.cnblogs.com/minks/p/5671246.html
及
【原创】用希尔伯特黄变换（HHT）求时频谱和边际谱
https://www.ilovematlab.cn/thread-65516-1-1.html
需要付费下载的：
经验模式分解EMD成本征模式函数IMF
https://download.csdn.net/download/lijq/1425279?utm_term=本征模态函数&utm_medium=distribute.pc_aggpage_search_result.none-task-download-2~all~sobaiduweb~default-0-1425279&spm=3001.4430
本征模态分解和希尔伯特谱分析.zip
https://download.csdn.net/download/tszy17/12512823
EMD
http://www.pudn.com/Download/item/id/2674942.html
