文献类型：期刊文献

中文题名：三轴磁罗盘标定位置分布的研究

英文题名：Research on calibration position distribution of three-axis magnetic compass

作者：刘艳霞[1,2];李希胜[1];冯毅博[1];张晓娟[1]

第一作者：刘艳霞

通讯作者：Liu, Y.

机构：[1]北京科技大学自动化学院;[2]北京联合大学自动化学院

第一机构：北京科技大学自动化学院,北京100083

年份：2013

卷号：34

期号：3

起止页码：684-690

中文期刊名：仪器仪表学报

外文期刊名：Chinese Journal of Scientific Instrument

收录：CSTPCD;;EI(收录号：20131616220546);Scopus(收录号：2-s2.0-84876084233);北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家自然科学基金项目(61273082);中央高校基本科研业务费专项资金(FRF-TP-09-017B);北京市属高等学校人才强教计划项目(PHR201108411);北京联合大学新起点计划项目(ZK201205)资助

语种：中文

中文关键词：椭球假设;等面积均匀取点算法;等夹角均匀取点算法;夹角恒定假设;三轴磁罗盘

外文关键词：ellipsoid assumption;equal area uniform data acquisition algorithm;equal included angle uniform dataacquisition algorithm;constant included angle assumption;three-axis magnetic compass

摘要：针对符合椭球假设的误差模型,分析了均匀取点和非均匀取点对椭球拟合精度及误差校准效果的影响,在此基础上提出了等夹角均匀取点算法。仿真结果表明等夹角均匀取点算法优于等面积均匀取点算法,通过等夹角均匀取点,并结合夹角恒定假设条件进一步修正航向角,可以在信噪比100∶1的情况下使航向角误差控制在±0.1°。实测实验进一步证实了等夹角均匀取点算法的可行性,航向角误差小于±0.15°。等夹角均匀取点算法提高了三轴磁罗盘误差补偿精度,满足地磁导航的要求。
Aiming at the error model that complies ellipsoid assumption, the influences of the proper uniform data acquisition and the non-uniform data acquisition on the precision of ellipsoid fitting and the result of error calibration are analyzed, based on which an equal included angle uniform data acquisition algorithm is presented. The simulation experiment result shows that the calibration result of the equal included angle uniform data acquisition algorithm is better than that of the equal area uniform data acquisition algorithm. When the constant included angle assumption is used to correct the heading angle,the heading error can be controlled within± 0.1 ° under the signal-to-noise ratio of 100： 1. The actual experiment result demonstrates the feasibility of the equal included angle uniform data acquisition algorithm,and the compensated heading error is less than ±0.15°. The proposed equal included angle uniform data acquisition algorithm can improve the measurement accuracy of the three-axis magnetic compass efficiently and meets the requirements of geomagnetic navigation.