便携式瞬变电磁系统探测未爆弹反演算法优化  

Optimization of Inversion Algorithm for Detecting Unexploded Projectiles with Portable Transient Electromagnetic System

作　　者：李庆振 张爽[1] 陈曙东[1] LI Qingzhen;ZHANG Shuang;CHEN Shudong(College of Electronic Science and Engineering,Jilin University,Changchun 130012,China)

机构地区：[1]吉林大学电子科学与工程学院,长春130012

出　　处：《吉林大学学报（信息科学版）》2022年第5期781-789,共9页Journal of Jilin University（Information Science Edition）

基　　金：国家自然科学基金资助项目(41704145)。

摘　　要：虽然便携式瞬变电磁系统适用于复杂地形条件下的未爆弹探测,但数据处理速度对其探测效率影响较大,为提高数据处理速度,对影响反演效率的因素进行了优化。采用吉林大学电磁传感技术实验室制作的便携式瞬变电磁系统获取目标响应,基于磁偶极子正演模型选用差分进化(DE:Differential Evolution)算法对数据进行反演。通过对数据预处理和DE算法参数优化,极大提高了反演速度。实验结果表明,采用优化后DE算法反演未爆弹位置参数和特征响应与常规DE算法反演得到的结果基本相同,定位误差在6 cm之内,计算用时为常规DE算法的1.4%。Portable transient electromagnetic system is suitable for unexploded ordnance detection under complex terrain conditions, and the data processing method has great influence on its detection efficiency. In order to improve the data processing speed, the factors affecting the inversion efficiency are optimized. The portable transient electromagnetic system made by the Electromagnetic Sensor Technology Laboratory of Jilin University is used to obtain the target response, and the DE(Differential Evolution) algorithm is used to invert the data based on the magnetic dipole forward model. The inversion speed is greatly improved by optimizing the data preprocessing and DE algorithm parameters. The experimental results show that the position parameters and characteristic responses of Unexploded Ordnance inverted by the optimized DE algorithm are basically the same as those obtained by the conventional DE algorithm, the positioning error is within 6 cm, and the calculation time is 1.4% of the conventional DE algorithm.

关 键 词：瞬变电磁 反演算法 差分进化算法 便携式系统 未爆弹 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构] TH763[自动化与计算机技术—计算机科学与技术]