EMD经典程序包，求瞬时频率和瞬时幅值，以及希尔伯特谱等。-Classic EMD program package, and instantaneous frequency and amplitude, as well as Hilbert spectrometer.

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.