Amplitude gain control is widely used in seismic data processing and interpretation.Based on an analysis of the shortcomings of conventional amplitude gain control (AGC),this paper presents an amplitude gain control method (envelope AGC) based on Hilbert transform.The basic principle is to decompose the amplitude envelope of seismic trace,get the normal amplitude and abnormal amplitude,then extract and add the abnormal value components to the normal value components by weighting,and finally conduct inverse transform to t-x domain to realize envelope AGC.The application results of actual seismic data show that the envelope AGC is realizable and has certain practical application value.
刘玉萍, 李丽青, 张宝金. 基于希尔伯特变换的振幅增益控制方法[J]. 物探与化探, 2020, 44(4): 790-795.
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