频率域吊舱式直升机航空电磁资料的马奎特反演  

Inversion of frequency domain helicopter-borne electromagnetic data with Marquardt's method

作　　者：周道卿[1] 谭林[2] 谭捍东[2] 张洪瑞[1] 杨雪[1] 王卫平[1] 

机构地区：[1]中国国土资源航空物探遥感中心,北京100083 [2]中国地质大学地球物理与信息技术学院,北京100083

出　　处：《地球物理学报》2010年第2期421-427,共7页Chinese Journal of Geophysics

基　　金：国土资源大调查科研项目(1212010660503)资助

摘　　要：频率域吊舱式航空电磁系统在国内尚处于研究和试生产阶段,由于缺少有效的数据处理手段,限制了该项技术的进一步应用和发展.本文通过对马奎特方法原理介绍,成功地将其运用到频率域航空电磁资料的反演计算中,并对几个关键技术——雅可比矩阵计算、初始模型赋值、形态模型与物性模型反演效果等进行分析,提出了切实可行的算法,并在计算机上加以实现.最后,通过理论模型和实测数据测试验证了算法的有效性和正确性,填补了国内该应用领域的技术空白,取得了较好的应用效果.Frequency domain helicopter-borne electromagnetic survey is still in the stage of research and testing in China. Due to the lack of effective means of data processing, further application and development of this technology is limited. After a brief introduction to the Marquardt＇s algorithm in this article, we successfully applied it in the processing of frequency domain aero electromagnetic （FAEM） data, and several key technologies such as Jacobian matrix calculation, the initial model assignment, the shape model and physical properties model inversion are also discussed. Finally, the method is used in some theoretical models and field data, the result is satisfying and believed to be helpful for the interpretation of FAEM data.

关 键 词：频率域 吊舱式航空电磁 马奎特反演 形态模型 物性模型 

分 类 号：P631[天文地球—地质矿产勘探]