单机站CORS的精度分析

Accuracy Analysis of Single Base Station CORS

结合工程实践,对单基站CORS系统的工作原理与测量精度进行分析,并用其解决平面控制网中野外作业数据采集是否满足精度要求的问题,在项目中使用单基站CORS系统下的数据结果与四等城市坐标系GPS控制点数据进行对比分析。精度统计表明,单基站CORS系统下进行平面点位的测量能够为中小城市测绘工程提供足够精度的实时定位服务,并且可以将其推广到其他同等精度要求的工程项目中,为今后的工程作业提供了参考和依据。

The paper analyzes working principle and measurement accuracy of single base station CORS , and resolves the problem whether the accuracy can be satisfied for the field data collection in the horizontal control network .The comparison is conducted be-tween the data collected by using single base station CORS system and the data collected by GPS control points of the fourth -grade city coordinate .The accuracy statistics shows that the horizontal point measurement of single base station CORS is able to offer the real-time location service for the surveying and mapping project of the large and medium size cities , which provides the references for the project in the future .