JLCORS测量的精度测试与分析

The Precision Test and Analysis to JLCORS Measurement

介绍了吉林CORS(以下简称JLCORS)的相关情况以及用CORS测量坐标时点位中误差的评定方法;分析了在长春地区用JLCORS测量点位的稳定情况,并根据计算,得出在长春地区用JLCORS测量时一次测量的点位中误差为1.83cm。通过研究认为:在长春地区,JLCORS稳定可靠,即可用于工程测量的碎部测量,也可以用于建立测区四等以下的平面控制。

This research introduces the relevant situation of Jilin CORS(hereinafter referred to as JLCORS)and the evaluation method to the point mean square error when using CORS to measure coordinates.Analysis to the stability of measuring points with JLCORS in Changchun area has been made,and according to the calculation,in Changchun area the mean square error of the point position measured by JLCORS is 1.83 cm.According to this study:the result has been got that in Changchun area JLCORS is stable and reliable,can be used for the step measurements of engineering survey,and also can be used for the establishment of the plane control below the fourth class.