基于时谐电偶极子模型的交变磁场定位技术  

Research on alternating magnetic field location based on time-harmonic electric dipole model

作　　者：孙兴凯 胡平 吕俊军 崔培 SUN Xing-kai;Hu Ping;LV Jun-jun;CUI-Pei(Dalian Scientific Test and Control Technology Institute,Dalian 116013,China)

机构地区：[1]大连测控技术研究所,辽宁大连116013

出　　处：《舰船科学技术》2022年第7期132-137,共6页Ship Science and Technology

基　　金：基础科研项目支持(JCKY2019207A019)。

摘　　要：为解决现有舰船磁定位精度不高的问题,提出基于水平电偶极子模型的交变磁场定位技术研究,利用电性源产生交变磁场信号,以浅海空气—海水—海床3层界面电偶极子模型为正演求解模型,针对实际舰船磁性检测中所得磁场信息的局部性而引起反演模型病态不适定问题,应用Powell局部搜索优化算法反演求解模型定位参数,从而实现偶极子源位置的实时解算。通过实验室水池电偶极子源实验对定位的结果进行验证,结果表明,该方法定位精度高,并且稳定可靠。In order to solve the existing magnetic positing method positioning accuracy is not high, an alternating magnetic field location technology based on the horizontal electric dipole model is proposed in this paper. In this method,alternating magnetic field signals are generated by electrical sources. In the paper, a passive location method of alternating magnetic field based on electric dipole model is proposed, taking the three-layer interface electric dipole model of shallow sea airseawater-seabed as the forward solution model. In order to solve the ill-posed problem of the inversion model caused by the locality of magnetic field information obtained in the actual ship magnetic inspection, Powell’s local search optimization algorithm was used to invert and solve the model location parameters, so as to realize the real-time solution of the real-time position of the dipole source. Finally, the location results were verified by the experiment of the electric dipole source in the laboratory pool, experimental results show that the location accuracy is high, and the method is stable and reliable.

关 键 词：电偶极子 磁定位 POWELL算法 

分 类 号：U674.7[交通运输工程—船舶及航道工程]