最新版计算三维HHT时频图的M文件，很有用-HHT the latest version of the calculation of three-dimensional time-frequency map M files, very useful

本程序主要通过EMD和hilbert求IMF，作出HHT归一化能量谱图（三维图），边际谱图和瞬时能量图，并做完备性验证，比较好用-This program mainly by EMD and Hilbert and the IMF, make the HHT normalized energy spectra (three-dimensional figure), marginal spectrum and instantaneous energy diagram, completeness,