基于CORS系统的1:500地形图精度研究

Accuracy Research of 1∶500 Topographic Mapping Based on CORS System

随着GNSS卫星定位应用的普及和计算机、数据通信及互联网络(LAN/WAN)等技术的日益成熟,连续运行参考站系统(CORS)应运而生。各个省市都建立了全省或者以地市为单位的CORS系统。利用CORS站来测量各种比例尺地形图的方法逐渐被测量单位所采用,这是测量应用方面的一次重要变革。本文主要阐述了CORS系统的概念、组成和使用,提出对利用CORS站测量出的地形图精度的检测方案,并通过实际项目进行检测,得出数字化地形图精度结论。

With the popularity of GNSS satellite positioning application and the development of computer,data communications and the Internet（LAN/WAN）,Continuously Operating Reference Station System（CORS）came into being.Various provinces and municipalities had established their CORS system.It＇s a significant change on the application of survey and mapping that CORS station had been gradually adopted in various scales of topographic maps.The concept、components and applications of CORS system were elaborated in this paper.It proposed the detection program of topographic maps by CORS,and draw the accuracy conclusion of digital topographic maps by testing practical projects.