基于遗传算法的矢量磁测量非对准误差校正  

Misalignment Error Calibration of Vector Magnetic Measurement Based on Genetic Algorithm

作　　者：罗建刚 张峰 刘静晓 李海兵 罗骋[1,2] LUO Jiangang;ZHANG Feng;LIU Jingxiao;LI Haibing;LUO Cheng(Pilot National Laboratory for Marine Science and Technology(Qingdao),QingDao 266237,China;Beijing Aerospace Control Device Institute,BeiJing 100039,China)

机构地区：[1]青岛海洋科学与技术试点国家实验室,山东青岛266237 [2]北京航天控制仪器研究所,北京100039

出　　处：《探测与控制学报》2021年第4期51-57,共7页Journal of Detection & Control

基　　金：国家自然科学基金项目资助(41976182);山东省重大科技创新工程专项(2018SDKJ0201);青岛海洋科学与技术试点国家实验室“主任基金”(QNLM201715);青岛海洋科学与技术试点国家实验室联合实验室自主研发课题(2019LHHT1301)。

摘　　要：针对矢量磁测量系统中存在非对准误差影响矢量磁场的测量精度,而传统校正方法不能对其进行有效校正的问题,提出基于遗传算法(GA)的矢量磁测量非对准误差校正方法。该方法以空间磁场的投影矢量为基准,通过三步坐标旋转的方式实现磁力仪和姿态仪坐标系对准,并利用遗传算法估算其中的坐标系旋转角度,最终实现非对准误差校正。仿真计算和实验结果表明,该方法可以准确估算出非对准角,经非对准误差校正后,仿真数据和实测数据各分量的均方根误差改善效果分别在94%和92%以上。Aiming at the problem that the misalignment error in vector magnetic measurement system affects the measurement accuracy of vector magnetic field,but the traditional correction method can not effectively correct it.A new method based on genetic algorithm was proposed to correct the misalignment error in vector magnetic measurement.Based on the projection vector of space magnetic field,the coordinate system alignment of magnetometer and attitude meter was realized by three-step coordinate rotation,and the rotation angle of the coordinate system was estimated by genetic algorithm,and finally realized the misalignment error correction.The simulation and experimental results showed that the method could accurately estimate the misalignment angle,After the misalignment error was corrected,the root mean square error of each component of the simulation data and the measured data was improved by more than 94%and 92%respectively.

关 键 词：矢量磁测量 非对准误差 遗传算法 误差校正 

分 类 号：P318.6[天文地球—固体地球物理学]