基于希尔伯特变换的振幅增益控制方法

doi:10.11720/wtyht.2020.1536

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Abstract

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.

Key words： Hilbert transform amplitude envelope abnormal value AGC amplitude gain

Received: 13 November 2019 Published: 28 August 2020

P631.4

Corresponding Authors: Bao-Jin ZHANG E-mail: liu-yuping@163.com;zhangbaojinchg@163.com

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	Yu-Ping LIU
	Li-Qing LI
	Bao-Jin ZHANG

Cite this article:

Yu-Ping LIU,Li-Qing LI,Bao-Jin ZHANG. An Amplitude gain control method based on Hilbert transform[J]. Geophysical and Geochemical Exploration, 2020, 44(4): 790-795.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2020.1536 OR https://www.wutanyuhuatan.com/EN/Y2020/V44/I4/790

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