基于磁矩梯度张量的单点定位方法
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摘要
在磁偶极子模型条件下,提出了一种利用磁矩信息替换磁场强度值的磁异常探测改进算法,设计了一种磁传感器阵列结构。利用磁梯度张量概念和磁矩信息降低测量过程中地磁场的影响,分析磁性目标磁矩方向、测量系统结构、高斯白噪声对该算法定位结果的影响,仿真结果表明该算法具有较高的定位精度,克服了目前利用磁梯度张量系统进行单点定位过程中测量系统姿态对定位结果的不良影响。
An improved magnetic anomaly detection algorithm using magnetic moment information to replace the magnetic field strength value was proposed under the condition of magnetic dipole model. A magnetic sensor array structure was designed in a targeted manner. The magnetic gradient tensor concept and magnetic moment information were used to reduce the influence of the geomagnetic field during the measurement process. The influence of magnetic target magnetic moment direction,measurement system structure and Gaussian white noise on the positioning result of the algorithm was analyzed. The simulation results show that the algorithm has higher positioning accuracy and effectively overcomes the current single point positioning process using magnetic gradient tensor system and the bad influence of the attitude of the measurement system on the positioning result.
An improved magnetic anomaly detection algorithm using magnetic moment information to replace the magnetic field strength value was proposed under the condition of magnetic dipole model. A magnetic sensor array structure was designed in a targeted manner. The magnetic gradient tensor concept and magnetic moment information were used to reduce the influence of the geomagnetic field during the measurement process. The influence of magnetic target magnetic moment direction,measurement system structure and Gaussian white noise on the positioning result of the algorithm was analyzed. The simulation results show that the algorithm has higher positioning accuracy and effectively overcomes the current single point positioning process using magnetic gradient tensor system and the bad influence of the attitude of the measurement system on the positioning result.
引文
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[11]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.
[12] WANG Xiaona,MENG M Q. CHAO H. A Localization Method Using 3-axis Magnetoresistive Sensors for Tracking of Capsule Endoscope[C]//Engineering in Medicine and Biology Society,2006. EMBS’06. 28th Annual International Conference of the IEEE,New York City,USA,2016.
[13]缪智威.改进的鲸鱼优化算法及其应用[C]//中国自动化学会过程控制专业委员会.第28届中国过程控制会议(CPCC 2017)暨纪念中国过程控制会议30周年摘要集.中国自动化学会过程控制专业委员会:中国自动化学会过程控制专业委员会,重庆:2017.
[2]王康谊,李世中,薛鹏.基于磁通门传感器的弹丸姿态角测量系统设计[J].弹箭与制导学报,2009,29(3):283-284,288.
[3]刘修泉,李艳红,刘畅,等.胶囊内窥镜磁定位算法改进及实验研究[J].测控技术,2017,36(8):150-154.
[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.
[5]于振涛,吕俊伟,樊利恒,等.基于磁梯度张量的目标定位改进方法[J].系统工程与电子技术,2014,36(7):1250-1254.
[6]刘继昊,李夕海,曾小牛.基于两点磁梯度张量的磁性目标在线定位方法[J].地球物理学报,2017,60(10):3995-4004.
[7] TAKAAKI N,SATOSHI S,SHIGERU A. A Closed-Form Formula for Magnetic Dipole Localiazation by Measurement of Its Magnetic Field and Spatial Gradients[J]. IEEE Transactions on Magnetics,2006,42(10):3291-3293.
[8]何庆,魏康园,徐钦帅.基于混合策略改进的鲸鱼优化算法[J/OL].计算机应用研究:1-8[2018-10-24]. http://kns. cnki. net/kcms/detail/51. 1196. TP. 20180929.1332. 012. html.
[9]万成彪.基于磁偶极子模型的磁性目标定位方法研究[D].长沙:国防科学技术大学,2013.
[10]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.
[11]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.
[12] WANG Xiaona,MENG M Q. CHAO H. A Localization Method Using 3-axis Magnetoresistive Sensors for Tracking of Capsule Endoscope[C]//Engineering in Medicine and Biology Society,2006. EMBS’06. 28th Annual International Conference of the IEEE,New York City,USA,2016.
[13]缪智威.改进的鲸鱼优化算法及其应用[C]//中国自动化学会过程控制专业委员会.第28届中国过程控制会议(CPCC 2017)暨纪念中国过程控制会议30周年摘要集.中国自动化学会过程控制专业委员会:中国自动化学会过程控制专业委员会,重庆:2017.