High-resolution imaging: an approach by compensating absorption and dispersion using inverse Q filtering

IF 0.6 4区地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS

Exploration Geophysics Pub Date : 2022-09-02 DOI:10.1080/08123985.2022.2119126

Jizhong Wu, Ying Shi, Weihong Wang, Qianqian Yang

引用次数: 0

Abstract

We have presented an inverse filtering scheme that can compensate absorption and dispersion caused by intrinsic attenuation in subsurface media with a heterogeneous model. We have adopted two methods to suppress high-frequency noise at the same time, one is to design a compensation operator with a fixed gain limit, and the other is to introduce an adaptive frequency-varying band calculation method. We use VSP data and seismic velocity data to estimate model of the whole work area in a unique way. The proposed scheme can be incorporated into conventional seismic data processing workflow. Tests on synthetic and real data set demonstrate effectiveness of the proposed inverse filtering.

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高分辨率成像:一种利用反Q滤波补偿吸收和色散的方法

我们提出了一种逆滤波方案，该方案可以补偿地下介质中非均质本征衰减引起的吸收和色散。我们采用了两种方法同时抑制高频噪声，一种是设计固定增益限制的补偿算子，另一种是引入自适应变频带计算方法。利用VSP数据和地震速度数据，以一种独特的方式估算了整个作业区的模型。该方法可与常规地震数据处理流程相结合。在合成数据集和实际数据集上的测试表明了所提反滤波方法的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Exploration Geophysics 地学-地球化学与地球物理

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Exploration Geophysics is published on behalf of the Australian Society of Exploration Geophysicists (ASEG), Society of Exploration Geophysics of Japan (SEGJ), and Korean Society of Earth and Exploration Geophysicists (KSEG). The journal presents significant case histories, advances in data interpretation, and theoretical developments resulting from original research in exploration and applied geophysics. Papers that may have implications for field practice in Australia, even if they report work from other continents, will be welcome. ´Exploration and applied geophysics´ will be interpreted broadly by the editors, so that geotechnical and environmental studies are by no means precluded. Papers are expected to be of a high standard. Exploration Geophysics uses an international pool of reviewers drawn from industry and academic authorities as selected by the editorial panel. The journal provides a common meeting ground for geophysicists active in either field studies or basic research.