天文定位中倾角传感器的标定
发布时间:2018-01-25 13:24
本文关键词: 天文定位 倾角传感器 标定 安装参数 校正 出处:《光子学报》2017年09期 论文类型:期刊论文
【摘要】:为提高天文定位系统的定位精度,减小倾角传感器安装误差对系统水平测量精度的影响,对系统中倾角传感器的安装参数标定及校正进行了研究.首先,给出基于倾角传感器的天文定位系统工作原理,分析倾角传感器安装过程中存在的误差源.然后,提出一种通过对天文定位系统进行改造,利用系统自身完成倾角传感器安装参数标定的方法,并给出了倾角测量数据的校正算法.最后,建立三视场天文定位系统仿真测试平台,对标定方法的性能进行了分析和验证.实验结果表明:该倾角传感器安装参数标定方法的标定精度与倾角传感器自身测量精度保持一致,在全量程范围内校正后的倾角测量结果最大误差为4.315 5″,基本满足天文定位系统中高精度倾角测量要求.
[Abstract]:In order to improve the positioning accuracy of the astronomical positioning system and reduce the influence of the installation error of the inclination sensor on the horizontal measurement accuracy of the system, the calibration and correction of the installation parameters of the inclination sensor in the system are studied. The working principle of astronomical positioning system based on inclination sensor is given, and the error source in installation process of inclination sensor is analyzed. Then, a retrofit of astronomical positioning system is put forward. The calibration method of the installation parameters of the inclination sensor is completed by the system itself, and the correction algorithm of the inclination angle measurement data is given. Finally, the simulation test platform of the three-field astronomical positioning system is established. The performance of the calibration method is analyzed and verified. The experimental results show that the calibration accuracy of the calibration method is consistent with that of the inclination sensor itself. The maximum error of the corrected obliquity measurement in the range of full range is 4.315 5 ", which basically meets the requirement of high precision inclination measurement in the astronomical positioning system.
【作者单位】: 长春工业大学;中国科学院长春光学精密机械与物理研究所;
【基金】:中科院国防科技创新基金(No.CXJJ-10-M53) 吉林省教育厅项目(No.吉教科合字[2016]第343号)资助~~
【分类号】:P128.4;TP212.9
【正文快照】: (2中国科学院长春光学精密机械与物理研究所,长春130033)0引言天文定位是一种古老而基本的导航方式,以其自主导航、定位精度高、抗干扰能力强等优点被广泛应用于1-7002190航海、航空等领域[1].天文定位利用天体敏感器(如星敏感器、经纬仪、天顶仪等)对已知准确空间位置的自然,
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