HNCORS在怀化市城区控制测量中的应用

省级CORS建设越来越多,应用也越来越广,如何保证省级CORS成果在地方的不同坐标系之间的转换精度,是需要重点考虑的问题。我们利用HNCORS在怀化市城区施测一级控制点作业中,首先验证了省级坐标转换参数在本地的转换精度,然后求取了适宜于本地的局部坐标转换参数,充分利用了HNCORS的高效、可靠的特点,作业时按照技术规程操作,使一级控制点的精度能够满足规范要求。

The Application of HNCORS in Huaihua City Control Surveying

The CORS construction is more and more,it is used more and more widely,how to ensure that the conver-sion between different coordinate system in place of the provincial CORS the accuracy of the results,is the need to focus on the issue. We use HNCORS in the urban area of Huaihua city surveying control points in a job,first verify that the provincial local coordinate transformation parameters in the conversion accuracy,and then the local coordinate transforma-tion parameters suitable for the local,make full use of the HNCORS high performance,reliable operation,in accordance with the technical specification for operation,so that the level of control the accuracy can meet the code requirement.