希尔伯特黄变换,包括EMD分解，寻找极值和画图。-hilbert-huang transformation

希尔伯特黄变换应用于转子震动，包括时频图，希尔伯特变换图，边际谱。-Hilbert-Huang transform is applied to the rotor vibration, including the time-frequency diagram, Hilbert transformation graphs, marginal spectrum.