GNSSRTK建立等级控制点精度分析  

GNSS RTK Accuracy Analysis of Establishing Grade Point

作　　者：施克 雷海林[2] 陈永生[2] 谢尚威 

机构地区：[1]中国能源建设集团辽宁电力勘测设计院有限公司,沈阳110179 [2]东北大学资源与土木工程学院,沈阳110819

出　　处：《导航定位学报》2015年第4期106-109,共4页Journal of Navigation and Positioning

摘　　要：针对单基站GNSS RTK技术应用广泛,但对其精度探讨不足的问题,选择带状区域用0.5″高精度的全站仪施测高精度控制网,建立实验场地;然后以基准站至流动站间的距离为可控变量,在带状控制网的一端设置GNSS RTK的基准站,在距基准站不同距离的位置上设置流动站,用RTK静态方式采集实时动态数据。利用大量的实验数据得出动态点相对于静态基准站间的相对精度,并以此建立两者之间的点图;根据点图建立两者之间的函数关系,通过反复建模比较确认两者之间成指数函数关系。最后,利用指数函数曲线回归的方法求出了两者之间的关系式,通过数据分析,证明了利用GNSS RTK技术建立等级控制点的可行性。GNSS RTK technology has been widely used for single base station, but its accuracy is inadequately discussed. This paper selects the strip area with 0.5 seconds precision Total Station surveying high-precision control network, establishes experimental site; then, with the distance between reference station and rover as controllable variables, it sets GNSS RTK base station at the end of the ribbon control network, in different distance from the reference station position setting rover, the real-time dynamic data acquisition by RTK static mode of operation. A large number of experimental data summarizes the relative accuracy between dynamic point and the static base station, builds the point diagram between them, according to the point diagram to establish the function relationship between them. By comparing modeling repeatedly confirmed a exponential function relationship between the two, using the exponential function curve regression method to calculate the relationship between them, analyzing the collected data, this paper proves the feasibility of using GNSS RTK technology to establish grade control points.

关 键 词：GNSSRTK 相对精度 曲线回归 等级控制 

分 类 号：TN96[电子电信—信号与信息处理]