通过希尔伯特变换获得地震记录的三瞬参数（瞬时相位，瞬时振幅，瞬时频率）。压缩包中的文件record-128-2048.dat为原始地震记录，128道，2048个采样点，2毫秒采样间隔。amp.dat pha.dat fre.dat分别为计算获得的瞬时振幅剖面，瞬时相位剖面，瞬时频率剖面，也都是128道 2048个点。其中的函数都可以很方面地移植到其他地方使用。-Obtained through the Hilbert transform instantaneous seismic records

The Hilbert–Huang method is presented with modifications, for time-frequency analysis of distorted power quality signals. The empirical mode decomposition (EMD) is enhanced with masking signals based on fast Fourier transform (FFT), for separat

求地震数据的瞬时频率，瞬时振幅，瞬时相位的程序，对研究地球物理三瞬的同学很有帮助-The instantaneous frequency, instantaneous amplitude, and instantaneous phase of the seismic data are helpful for the study of geophysics.