精密测距三角高程测量在JXCORS基准站高程测量中的应用  

Precision ranging triangulation height measurement applied in height measurement at JXCORS base station

作　　者：康建松 杨波 KANG Jiansong;YANG Bo(Jiangxi Institute of Natural Resources Surveying and Monitoring,Nanchang 330002,China)

机构地区：[1]江西省自然资源测绘与监测院,江西南昌330002

出　　处：《经纬天地》2024年第4期28-33,共6页Survey World

摘　　要：针对江西省卫星导航定位服务系统部分基准站点采用水准测量方法测定高程无法实施或非常困难的问题,选取其中一个站点,分别采用二等水准测量和精密测距三角高程测量2种方法进行施测。根据误差传播定律和数理统计原理,对影响观测高差中误差的观测边长和竖直角进行分析。结果表明:利用测量机器人,采用中间法和对向观测法进行精密测距三角高程测量,测量精度满足二等水准测量的精度要求,可以应用在基准站高程属性测定工作中。In response to the issue that some base stations of the Jiangxi Satellite Navigation and Positioning Service System cannot be measured due to using leveling measurement methods or difficult measurement,one of the stations is selected and two methods such as second-class leveling measurement and precision ranging triangulation height measurement are used in this article.According to the law of error propagation and the principles of mathematical statistics,the observation edge length and vertical right angle that affect the error in the observation height difference get analyzed.It has been verified that the use of both measuring robots and intermediate and opposite observation methods for precise distance measurement of trigonometric elevation can meet the accuracy requirements of second-class leveling and can be applied in the determination of elevation attributes at reference stations.

关 键 词：JXCORS 基准站 二等水准测量 三角高程测量 

分 类 号：P224[天文地球—大地测量学与测量工程]