基于单轴定标的三轴磁传感器的误差校正  

Error Rectification of Triaxial Magnetometer Based on Calibration of Single Axis

作　　者：朱兴乐[1] 肖昌汉[1] 闫辉[1] 

机构地区：[1]海军工程大学电气与信息工程学院,湖北武汉430033

出　　处：《海洋测绘》2010年第6期26-29,共4页Hydrographic Surveying and Charting

摘　　要：提出了一种校正三轴磁传感器综合误差的新方法。该方法利用三轴磁传感器的误差校正数学模型和遗传算法,通过预先对其中某单轴灵敏度定标,并以此为标准来校正其他两轴以及综合误差。仿真结果表明,该方法稳定收敛并可达到1nT精度。用实际地磁场测量数据对该方法进行验证,结果表明磁传感器性能得到极大改善,测量精度有了较大幅度提高。A new method is proposed to rectify general errors of triaxial magnetometer.The sensitivity of certain axis is scaled and taken as criterion beforehand.Then both the other two axis and the general errors are corrected by using the mathematical correction model of triaxial magnetometer and genetic algorithm.Simulational result indicates that the method can get stable convergence and high precision of 1nT.Practical measurement data of geomagnetic field is used to test the method.The result shows that the capability of triaxial magnetometer is improved greatly and the measuring precision is enhanced large in extent.

关 键 词：磁场测量 误差校正 单轴定标 遗传算法 

分 类 号：P318.63[天文地球—固体地球物理学]