地雷探测方法研究对保障国防安全、边境雷区人民生命安全及经济发展具有重要意义。在申请人博士论文和课题组前期对电磁法探雷研究的基础上，针对总场电磁法在强导电导磁土壤背景下对微金属含量地雷探测能力较差的问题，本项目拟开展基于虚分量电磁法的微金属含量地雷探测方法的研究。主要内容有：建立典型磁性和电性背景土壤的物理模型并研究其电磁响应特征，以分析背景土壤导电性和导磁性干扰微金属含量地雷探测的机理；研究基于虚分量电磁法的微金属含量地雷异常场提取方法，以提高仪器在强导电导磁土壤上的背景干扰抑制能力从而提取出纯目标信号；研究电磁感应传感器抗干扰设计及环境自适应学习方法，以提高仪器在不同环境中的抗干扰和自适应能力。拟搭建实验平台来验证理论方法并测试传感器，进而研制新型微金属含量地雷探测器样机。本研究将为复杂背景下微金属含量地雷探测提供抗干扰能力更强的方法，促进探雷技术的发展，具有重要的科学意义和应用价值。

The research on the method of landmine detection has the vital significance to safeguard the national security, protect people's life in the minefield of border, guarantee the development of local economic. For the detectivity of total field electromagnetic method for the landmine with trace amount of metal is weak，this project intends to carry out the research on the detection of the landmine with trace amount of metal based on the quadrature electromagnetic method, which on the basis of applicant’s PhD thesis and the project team’s research on landmine detection based on electromagnetic method at the early stage. The main research includes: the physical model and electromagnetic response characteristics of the typical magnetic and electrical background soil is studied，which is to analyze the mechanism that how electrical conductivity and magnetic permeability of the background soil interference the detection of the landmine with trace amount of metal; based on the quadrature electromagnetic method, the method that how to extract the anomaly field of the landmine with trace amount of metal is studied to improve the anti-interference ability of the instrument in the background soil with strong electrical conductivity and magnetic permeability, therefore the pure target signal will be extracted; the anti-interference design and self-adaption learning method of the electromagnetic induction sensor are studied, so as to improve the ability of anti-interference and self-adaption of instruments in the different environment. A test platform is planted to build up to verify this theoretical method and test the sensor, and a new prototype of detector for landmine with trace amount of metal is developed. This study will provide a detection method of landmine with trace amount of metal, which could make the instruments have stronger anti-interference ability under complicated background, and it also will promote the development of method and technology of landmine detection, which has important scientific significance and application value.