虚拟波场变换方法在电磁法中的进展  

Research progress of fictitious wave field transformation method in electromagnetic method

作　　者：林超[1,2] 严家斌[1,2] LIN Chao;YAN Jiabin(Central South University,School of Earth Sciences and Information Physics,Changsha 410083,China;Key Laboratory of Non-ferrous Resources and Geological Hazard Detection,Changsha 410083,China)

机构地区：[1]中南大学地球科学与信息物理学院,长沙410083 [2]有色金属成矿预测与地质环境监测教育部重点实验室,长沙410083

出　　处：《物探化探计算技术》2020年第1期56-63,共8页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家自然基金项目(40874055);湖南省自然科学基金项目(14JJ2012)。

摘　　要：虚拟波场变换方法作为电磁法数据处理中一种有效的方法,通过将扩散的麦克斯韦方程组变换成虚拟波动方程,在虚拟波场中应用和研究,丰富和拓展了电磁场的内涵,在电磁法高分辨率成像,数据精细解释地研究以及提高数值模拟计算效率等方面具有重要意义。这里详细介绍了虚拟波场变换方法的基本原理和变换的方法,讨论了它的优缺点,并对虚拟波场在电磁法中的应用做了综述。As an effective method of electromagnetic data processing,the method of transforming the diffused Maxwell equations into virtual wave equations can be used to apply and study in the fictitious wave field,and this also can enrich and expand the connotation of electromagnetic fields.It is of great significance in high-resolution imaging of electromagnetic methods,research on fine interpretation of data,and improvement of numerical simulation calculation efficiency.In this paper,the basic principle and transformation method of fictitious wave field transform method are introduced in detail.Its advantages and disadvantages are discussed.The application of fictitious wave field in electromagnetic method is reviewed.

关 键 词：电磁法 虚拟波场 数值模拟 成像 

分 类 号：P631.2[天文地球—地质矿产勘探]