使用VC2005编写的自己生成不同频率的数据，使用FFT算法进行处理，显示。非常适合VC初学者效仿-VC2005 prepared to use its own generation of data at different frequencies, using FFT algorithm, show. Very suitable for beginners to follow VC

包含有希尔伯特黄变换的主程序、边际谱的计算方法、并绘制了仿真信号的FFT频谱和功率谱，并调用emd分析方法，绘制了emd分解结果，以及瞬时包络和瞬时频率图，还有Hilbert-Huang谱和Hilbert边际谱- Including the main program of the Hilbert Huang transform, marginal spectrum calculation method, and draw the simulation signal FFT spectrum