摘要
短基线RTK技术的精度符合滑坡监测的要求,由于滑坡地带的特殊性,在利用RTK技术进行滑坡监测时,流动站与基准站构成长基线。长基线RTK观测精度是否符合滑坡监测精度要求未知。进行了模拟实验,设定一条长基线,利用RTK观测对固定不动的观测点进行动态测量,求出其观测坐标,将观测坐标与平均坐标相比,并利用求坐标中误差的方法解算出水平精度和高程精度,结果求得的水平精度和高程精度都达到了厘米级。结果显示:长基线RTK技术可以很好的用于滑坡监测,且监测精度达到厘米级。
Practice has proved that the accuracy of short baseline RTK technology meets the requirements of landslide monitoring. Due to the particularity of landslide area, the baseline of mobile station and reference station should be built up when RTK technology is used for landslide monitoring. Whether the long baseline RTK observational accuracy meets the requirements of the landslide monitoring precision is unknown. This paper carried out a simulation experiment with setting a long baseline by using the RTK observation point on a fixed position of the dynamic measurement, calculated the observation coordinate, compared the observed coordinates with the average coordinates, and used the method of coordinates error to solve the horizontal and elevation accuracy. The results show that the horizontal and elevation accuracy obtained has reached centimeter level. The experiment shows that the long baseline RTK technology can be used well for landslide monitoring and the monitoring accuracy reaches to centimeter level.
作者
陈伟
CHEN Wei(Surveying and Mapping Institute Lands and Resource Department Of Guandong Province,Guangzhou 510500,China)
出处
《华南地震》
2018年第4期29-33,共5页
South China Journal of Seismology
关键词
长基线
RTK
差分
滑坡监测
极限误差
Long baseline
RTK
Difference
Landslide monitoring
Limit error
