基于深度加权的重力梯度数据联合相关成像反演

doi:10.12068/j.issn.1005-3026.2020.11.017

东北大学学报:自然科学版 ›› 2020, Vol. 41 ›› Issue (11): 1628-1632.DOI: 10.12068/j.issn.1005-3026.2020.11.017

基于深度加权的重力梯度数据联合相关成像反演

侯振隆^1,2，郑玉君¹，巩恩普¹，程浩¹

(1. 东北大学资源与土木工程学院，辽宁沈阳110819;2. 东北大学深部金属矿山安全开采教育部重点实验室，辽宁沈阳110819)

收稿日期:2019-12-26 修回日期:2019-12-26 出版日期:2020-11-15 发布日期:2020-11-16
通讯作者: 侯振隆
作者简介:侯振隆(1988-)，男，辽宁沈阳人，东北大学讲师，博士；巩恩普(1958-)，男，辽宁沈阳人，东北大学教授，博士生导师.
基金资助:
中央高校基本科研业务费专项资金资助项目(N180104020); 国家重点研发计划项目(2017YFC1503101); 国家自然科学基金NSFC-山东联合基金资助项目(U1806208).

Joint Correlation Imaging Inversion with Gravity Gradiometry Data Based on Depth Weighting

HOU Zhen-long^1,2， ZHENG Yu-jun¹， GONG En-pu¹， CHENG Hao¹

1. School of Resources & Civil Engineering，Northeastern University，Shenyang 110819， China; 2. Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines，Northeastern University，Shenyang 110819， China.

Received:2019-12-26 Revised:2019-12-26 Online:2020-11-15 Published:2020-11-16
Contact: HOU Zhen-long
About author:-
Supported by:
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摘要/Abstract

摘要： 针对矿产勘查中相关成像反演存在的纵向分辨率较低的问题，提出了一种基于深度加权的重力梯度数据相关成像反演方法.通过联合多个重力梯度分量、引入基于先验信息的深度加权函数与地下空间分区加权等方法，提高反演的纵向空间分辨率.在数据试验中，利用立方体组合模型证实了提出的方法能够准确反演出目标体的空间位置，计算的密度数值范围与理论模型基本一致，且方法具有一定的抗噪能力.将反演应用于美国文顿盐丘地区的实测重力梯度数据，结果显示出的盖岩位置与已知地质资料相符，证明了本文方法具有可行性和实用性.

关键词: 重力梯度数据, 分区加权, 深度加权函数, 相关成像反演, 文顿盐丘

Abstract: Aiming at the low vertical resolution of correlation imaging inversion in the mineral exploration， a correlation imaging inversion based on depth weighting with gravity gradiometry data is proposed. The vertical space resolution of the inversion would be improved by the means of combining multiple gravity gradiometry tensors， introducing the depth weighting function based on the prior information and the underground zonal weighting method. In the data test，it is demonstrated by the cube-combination model that the proposed method could inverse the objective location accurately， the numerical range of computed density is consistent with the theoretical model， and the method has the anti-noise ability. The inversion is then applied to the real gravity gradiometry data from Vinton Dome， U. S.， the location of the cap rock displayed in the results conforms to the known geological information. It is proved that the method is effective and practical.

Key words: gravity gradiometry data, zonal weighting, depth weighting function, correlation imaging inversion, Vinton Dome

中图分类号:

TP20

侯振隆，郑玉君，巩恩普，程浩. 基于深度加权的重力梯度数据联合相关成像反演[J]. 东北大学学报:自然科学版, 2020, 41(11): 1628-1632.

HOU Zhen-long， ZHENG Yu-jun， GONG En-pu， CHENG Hao. Joint Correlation Imaging Inversion with Gravity Gradiometry Data Based on Depth Weighting[J]. Journal of Northeastern University Natural Science, 2020, 41(11): 1628-1632.

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基于深度加权的重力梯度数据联合相关成像反演

Joint Correlation Imaging Inversion with Gravity Gradiometry Data Based on Depth Weighting

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