CORS系统在长江镇扬河段内的高程精度分析

The Elevation Accuracy Analysis Based on CORS System in Zhenyang Reach of Yangtze River

利用CORS-RTK对长江镇扬河段沿江26个控制点采集的数据与传统三等水准测量的高程成果进行对比,分析表明CORS-RTK在镇扬河段测区内的高程精度能够满足四等水准的要求,从而为该测区内水下、陆上的测量项目提供可靠的理论依据。

The collected data from 26 control points along Zhenyang reach of Yangtze River and traditional third leveling elevation results were compared based on CORS-RTK.The resuhs showed that elevation accuracy on CORS-RTK in Zhenyang reach of Yangtze River can meet the requirements of forth leveling elevation,and provide a reliable theoretical basis for underwater survey area and land measurement.