全站仪自动目标识别测定真北方位角  

Measurement of true north position angles based on automatic target recognition of total station

作　　者：张宏宇 许皓瑞 ZHANG Hongyu;XU Haorui(School of Surveying&Land Information Engineering,Henan Polytechnic University,Jiaozuo,Henan 454000,China)

机构地区：[1]河南理工大学测绘与国土信息工程学院,河南焦作454000

出　　处：《导航定位学报》2024年第5期164-170,共7页Journal of Navigation and Positioning

摘　　要：为了进一步提升导弹预设阵地建设、航空航天器发射、陀螺仪标校等领域中真北方位测定的精度和准确度,提出一种真北方位角测定方法:通过研究多种真北方位角测定方法,在分析现有方法特点及测量精度的基础上,提出并实现一种利用具备自动目标识别(ATR)功能的全站仪来实现真北方位角测量的方法;并运用2种方法对所测得的4个真北方位角的精度及准确度进行分析。实验结果表明,不符值绝对值最大为0.38″,对于短边真北方位角其真实准确度可以做到优于±0.5″,能够证明其可行性及准确性,为确定方位基准的外符精度提供参考。In order to further improve the determination accuracy and exactitude of true northern position angles in the construction of missile preset positions,aerospace launch,gyroscope calibration and other fields,the paper proposed a measurement method of true north position angles:various methods for measuring true north azimuth were discussed,and the characteristics and measurement accuracy of existing methods were analyzed;then a method for measuring true north azimuth using a total station with automatic target recognition(ATR)function was given;finally,two methods were used to analyze the accuracy and precision of the four true northern azimuth angles measured.Experimental results showed that the maximum absolute value of the discrepancy would be 0.38″,and the true accuracy of the short edge true northern azimuth angle measurement based on ATR would be better than±0.5″,providing technical reference for determining the extrinsic accuracy of the azimuth basis,which could verify the feasibility and accuracy of the proposed method.

关 键 词：真北方位 自动目标识别(ATR) 全站仪 天文方位角 精度分析 

分 类 号：P228[天文地球—大地测量学与测量工程]