Complex seismic trace analysis of seismic signal and its application

Complex seismic trace analysis is also called three instantaneous analysis.It can separate instantaneous amplitude from instantaneous phase and instantaneous frequency of seismic wave,and give local variations of seismic signal.Imaginary seismogram is obtained by Hilbert transform and three instantaneous information is obtained by complex seismic trace analysis method in this paper.The instantaneous amplitude,instantaneous phase and instantaneous frequency of theoretical synthetic seismogram are calculated and their effects are good.The actual data processing results show that the instantaneous information from the complex seismic trace analysis method not only reflects local variation of seismic signal,but also devotes to analysis of thin interbeds with seismic data,which can also improve interpretation accuracy.