基于天文测量高精度真北方位校准的可靠性分析  

Reliability Analysis of High Accuracy True North Azimuth Calibration Based on Astronomical Survey

作　　者：庞飞 王应建 刘宁 温锐 时春霖 杨永旭 钟湘林 PANG Fei;WANG Yingjian;LIU Ning;WEN Rui;SHI Chunlin;YANG Yongxu;ZHONG Xianglin(61365 Troops,Tianjin 300140,China;61206 Troops,Beijing 100042,China)

机构地区：[1]61365部队,天津300140 [2]61206部队,北京100042

出　　处：《测绘与空间地理信息》2023年第9期131-135,共5页Geomatics & Spatial Information Technology

摘　　要：基于目前真北方位标准的建立和校准缺少规范化统一的计量标准和方法的问题,本文对真北校准方法进行梳理,以定向精度最高的天文测量方法为基础,通过对Y/JGT-1型天文测量系统进行溯源和性能指标确定,分别在实验室内和野外条件下进行实际测量,通过重复性和稳定性试验研究其作为真北方位校准装置的可行性。实验数据表明,天文测量系统在野外真北方位边上的测量具有良好的重复性和稳定性,完全满足校准真北方位的相关要求,实现了完整的真北方位溯源链,为规范真北方位标准的建立校准工作提供有益数据支撑和技术借鉴,同时为精密工程测量、形变监测和工业测量等领域提供可行的标定方案。Based on the lack of standardized and unified measurement standards and methods for the establishment and calibration of the true north azimuth standard,this paper sorts out the true north azimuth calibration methods.Based on the astronomical measure-ment method with the highest orientation accuracy,the Y/JGT-1 astronomical measurement system is traced to the source and the per-formance indicators are determined,and the actual measurements are carried out in laboratory and field conditions respectively.Through the repeatability and stability tests,the feasibility of using it as the true north azimuth calibration device is studied.The ex-perimental data shows that the measurement of the astronomical measurement system on the side of the true north azimuth in the field has good repeatability and stability,fully meets the relevant requirements for calibrating the true north azimuth,realizes a complete true north azimuth traceability chain,provides useful data support and technical reference for standardizing the establishment and cali-bration of the true north azimuth standard,and provides a feasible calibration scheme for precise engineering measurement,deforma-tion monitoring,industrial measurement and other fields.

关 键 词：校准装置 天文定向 真北方位角 重复性 稳定性 

分 类 号：P128.1[天文地球—天体测量]