摘要
利用卫星定位及无约束平差技术建立贵阳市轨道交通2号线二期工程建立独立坐标系统,根据独立坐标系统构建独立平面、高程、联系测量控制网。在WGS-84坐标系中利用POWERADJ4.0软件的平差程序和NASEW软件进行平面控制网、高程控制网、联系测量控制网进行二维约束与二维无约束平差计算,平差后的坐标与一期工程控制网基准数据重合率高;该成果具有精度高、可靠性强,计算简便、节省了时间,使得工作效率得到提高。
It is to establish the independent coordinate system of section project of Guiyang rail transit line two by using satellite positioning and non-constraint adjustment technique. According to the indepen- dent coordinate system, an independent plane, elevation, contact measurement control network are estab- lished. And then it is calculated two dimensional constraints and two dimensional unconstrained adjustments through POWERADJ4.0 software adjustment program and NASEW software for plane control network, ele- vation control network and contact measurement control network in WGS-84 coordinate system. It coordi- nates after adjustment and reference data of first phase engineering control network with high coincidence rate. The result has high precision, high reliability, simple calculation and saving time, which improves work efficiency a lot.
出处
《辽宁省交通高等专科学校学报》
2017年第2期17-20,共4页
Journal of Liaoning Provincial College of Communications
关键词
坐标系统
联系测量
平差
精度分析
coordinate system, contact measurement, adjustment, accuracy analysis
