This paper by Norden Huang describes the Hilbert Huang Transform and its algorithm

一篇关于希尔伯特黄变换在地震信号处理方面的理论研究，里面对其具体的算法进行了设计和讲解，对以后地震信号的深入研究提供了一个参考。-Article on the Hilbert Huang transform in seismic signal processing theory, which carried out its specific algorithm and explain the design of future-depth study of the seismic signal p

Article for extracting 3th and 4th heard sound fECGH and fPCG using Hilbert Huang Transform-Article for extracting 3th and 4th heard sound fECGH and fPCG using Hilbert Huang Transform