摘要
JLCORS于2011年12月27日投入试运行,在试运行期间提供厘米级网络RTK定位服务。将对我省水利工程测量产生深远影响,使测量工作更加方便、快捷。但是它提供的是国家坐标系统下的坐标,在某些地区其投影长度变形值可能超过水利工程测量规范的要求,不能直接利用其成果,本文将从如何限制投影长度变形方法,采用适当的坐标系,对成果进行坐标转换,从而使其满足水利工程测量的要求。
JLCORS was put into trial operation on December 27, 2011, it provided centimeter-level network RTK positioning service during the test run. It might make deeply impact on water projects in Jilin Province, and makes the measurement more convenient and faster. But it provides a national coordinate system coordinates, the deformation values of the projection length in some areas may exceed the specification requirements of hydraulic engineering measurement, can not be directly used. This article dicusses how to limit the length of projection deformation, using the appropriate coordinate to transform the survey results and make them meet the measurement requirements of hydraulic engineering.
出处
《吉林水利》
2012年第7期31-33,共3页
Jilin Water Resources
关键词
JLCORS
水利工程测量
投影长度变形
坐标系统选择
JLCORS
hydraulic engingeering survey
projector length deformation
coordinate system selection
