摘要
RTK+全站仪测量技术在既有线铁路复测中的应用,克服了以往卷尺+全站仪测量效率低的缺陷。针对RTK在某些地方卫星遮挡、信号不好致使观测时间延长的问题,通过抬高RTK扩大卫星信号接收范围,减少遮挡,提高接收卫星信号的几率,缩短观测时间。但是,由于抬高使得RTK在曲线超高地段相位中心发生偏移,不能精确得到坐标,经对RTK相位中心偏移与抬高高度关系的分析,抬高RTK不超过1000mm产生的误差满足规范精度。
RTK total station measuring technology in the application of existing railway survey. It overcome the previous tape and the defects of low efficiency of total station measurement. In view of the RTK signal is bad in some places the observation time prolonged.While raise the gps-rtk expanding the scope of the satellite signal receiving and reduce barriers, it will increases the chances of the satellite reception and better shorten the observation time. However, due to made the gps-rtk in a curve super-high location phase center offset. It cannot obtain precise coordinates. The phase center offset of RTK and push up highly relationship analysis, Raise the RTK does not exceed the error of 1 000 mm to meet the specification accuracy.
作者
马勇
MA Yong(The First Topographic Survey Team of the Ministry of Natural Resources, Xi′an 710054, China)
出处
《测绘与空间地理信息》
2019年第6期164-168,共5页
Geomatics & Spatial Information Technology
