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 air-seawater-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.
2022,44(7): 132-137 收稿日期：2021-07-30
DOI：10.3404/j.issn.1672-7649.2022.07.026
分类号：U674.7
基金项目：基础科研项目支持（JCKY2019207A019）
作者简介：孙兴凯(1996-),男,硕士研究生,研究方向为水下磁定位技术
参考文献：
[1] 向前, 马小龙. 基于磁偶极子模型的水下目标定位与跟踪[J]. 探测与控制学报, 2019, 41(3): 70–75
XIANG Q, MA X L. Underwater target passive location and tracking based on magnetic dipole model[J]. Journal of Detection & Control, 2019, 41(3): 70–75. (in Chinese)
[2] 林春生, 龚沈光. 舰船物理场[M]. 北京: 兵器工业出版社, 2007, 45-46.
[3] 吴云超, 刘永志, 苏建业, 等. 舰船交变电偶极子模型产生的交变磁场计算[J]. 舰船科学技术, 2009, 31(10): 123–128
WU Y C, LIU Y Z, SU J Y, et al. The computation of the AM field of a ship using the AC electric dipole[J]. Ship Science and Technology, 2009, 31(10): 123–128
[4] 毛伟, 张宁, 林春生. 在三层介质中运动的时谐水平电偶极子产生的电磁场[J]. 电子学报, 2009, 9: 2077–2081
MAO W, ZHANG N, LIN C S. The EM FIELDS produced by a moving Horizontally-Directed time-harmonic dipole in three-layer medium[J]. ACTA Electronic Sinica, 2009, 9: 2077–2081
[5] 卢新成, 龚沈光, 周骏, 等. 海水中时谐水平电偶极子的准近场定位[J]. 武汉理工大学学报, 2005, 29(3): 331–334
LU X C, GONG S G, ZHOU J, et al. Quasi-near field localization of a time-harmonic HED in sea water[J]. Journal of Wuhan University of Technology, 2005, 29(3): 331–334
[6] 张华, 王向军, 单潮龙, 等. 基于目标静电场的水中兵器制导方法研究[J]. 电子学报, 2013, 41(3): 470–474
ZHANG H,WANG X J, SHAN C L, et al. Research of guidance method based on the electrostatic field of target for underwater weapon[J]. ACTA Electronica Sinica, 2013, 41(3): 470–474
[7] 李涛, 王向军, 嵇斗. 浅海中时谐水平电偶极子定位研究[J]. 舰船电子工程, 2015, 35(5): 142–146
LI T, WANG X J, JI D. Time-harmonic horiziontal dipole in coastal[J]. Ship Electronic Engineering, 2015, 35(5): 142–146
[8] 吕俊军, 陈凯, 苏建业, 等. 海洋中的电磁场及其应用[M]. 上海: 上海科学技术出版社, 2020, 207-208.
[9] 徐杰. 一种高效的舰船磁性定位方法[J]. 舰船科学技术, 2011, 33(12): 69–71
XU J. A efficient vessel magnetic location method[J]. Ship Science and Technology, 2011, 33(12): 69–71
