Research on Magnetic Target Location Method Based on a Single Magnetic Gradiometer

doi:10.3969/j.issn.1000-1093.2017.08.015

Abstract

Abstract: Euler method can be used to realize the accurate positioning of magnetic dipole source. The magnetic gradient tensor data can be calculated using the magnetic field strength data, which is measured by rotating the magnetic gradiometer. A magnetic target location method based on the rotation of a single vector magnetic gradiometer is proposed. A rotating detection model of magnetic gradiometer is established. The influences of rotational angle, inclination angle and baseline length on the positioning accuracy of target are analyzed, which provides a reference for the design of rotating device. The proposed detection method has a higher positioning accuracy in the region near the magnetic target compared with the detection method using an array of seven magnetic sensors.Key

Key words: electromagnetics, magnetictensor, Eulermethod, magneticgradiometer

CLC Number:

TJ61⁺7

JIA Wen-dou, LIN Chun-sheng, SUN Yu-hui, ZHAI Guo-jun. Research on Magnetic Target Location Method Based on a Single Magnetic Gradiometer[J]. Acta Armamentarii, 2017, 38(8): 1572-1577.

References

［1］吕俊伟，迟铖，于振涛，等．磁梯度张量不变量的椭圆误差消除方法研究［J］．物理学报，2015，64(19)：52-59．
LYU Jun-wei, CHI Cheng, YU Zhen-tao, et al. Research on the asphericity error elimination of the invariant of magnetic gradient

tensor［J］. Acta Physica Sinica, 2015, 64(19): 52-59. (in Chinese)
［2］陈谨飞，张琦，潘孟春，等．基于正六面体结构测量阵列的磁异常定位技术研究［J］．传感技术学报，2012，25(8)：1088-1092．
CHEN Jin-fei, ZHANG Qi, PAN Meng-chun, et al. Research on geomagnetic anomaly localization based on cubic measurement array［J］. Chinese Journal of Sensors and Actuators, 2012, 25(8): 1088-1092. (in Chinese)
［3］ Wiegert R, Oeschger J. Generalized magnetic gradient contraction based method for detection, localization and discrimination of underwater mines and unexploded ordnance［C］∥MTS/IEEE OCEANS 2005. Washington DC, US: IEEE , 2006: 1325-1332.
［4］张朝阳，肖昌汉，阎辉．磁性目标的单点磁梯度张量定位方法［J］．探测与控制学报，2009，31(4)：44-48．
HANG Zhao-yang, XIAO Chang-han, YAN Hui. Localization of a magnetic object based on magnetic gradient tensor at a single point［J］. Journal of Detection & Control, 2009, 31(4): 44-48. (in Chinese)
［5］张光，张英堂，李志宁，等．载体平动条件下的磁梯度张量定位方法［J］．华中科技大学学报：自然科学版，2013，41(1)：21-24．
ZHANG Guang, ZHANG Ying-tang, LI Zhi-ning,et al. Localizing method of magnetic field gradient tensor under carriers moving parallelly［J］, Journal Huazhong University of Science & Technology: Natural Science Edition, 2013, 41(1): 21-24. (in Chinese)
［6］庞鸿锋，朱学军，万成彪，等．基于磁梯度张量和地磁矢量测量的运动式定位方法：中国，201510027060.7［P］. 2015-04-22．
PANG Hong-feng, ZHU Xue-jun, WANG Cheng-biao, et al. Movable type location method based on magnetic gradient tensor and geomagnetic vector measurement: China, 201510027060.7［P］, 2015-04-22.(in Chinese)
［7］于振涛，吕俊伟，张本涛．基于海底磁力仪阵列的磁性目标定位方法［J］．武汉理工大学学报，2012，34(6)：131-135．
YU Zhen-tao, LYU Jun-wei, ZHANG Ben-tao. A method to localize magnetic target based on a seabed array of magnetometers［J］. Journal of Wuhan University of Technology, 2012, 34(6): 131-135. (in Chinese)
［8］ Nara T, Ito W. Moore-Penrose generalized inverse of the gradient tensor in Euler's equation for locating a magnetic dipole［J］. Journal of AppliedPhysics , 2014, 115(17): 17E504.
［9］庞学亮，林春生，张宁．一种基于磁偶极子模型的潜艇信号检测方法［J］．海军工程大学学报，2011，21(3)：73-76．
PANG Xue-liang, LIN Chun-sheng, ZHANG Ning. A new method of signal detection and parameter estimation based on magnetic dipole model［J］. Journal of Naval University of Engineering, 2011, 21(3): 73-76. (in Chinese)

第38卷
第8期2017 年8月兵工学报ACTA
ARMAMENTARIIVol.38No.8Aug.2017

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