山区村落单基站RTK测量的可靠性检测和成果精度评估

摘要

GPS RTK ( Real Time Kinematic ) is a technique of the real time GPS based on the carrier phase measurement .The phe-nomenon of using a long time in the initialization and the phase unlocking sometimes could be arisen to the single base station RTK . The main problems are the limit of the GPS system and the data chains of the transmission to RTK itself .The article discusses the de-tection of the reliability and the Evaluation of the production precision to the single base station RTK as an example for the tape of S 82 RTK of SOUTH SURVEY CO .in the surveying the large scale digital terrain maps at the south mountain village of GANSU province .%GPS RTK（实时动态相对定位）是一项以载波相位观测为基础的GPS实时差分测量技术。在山区作业环境下，对于单基站RTK，容易造成仪器初始化时间较长，有时出现失锁的现象。其主要问题产生的原因是整个GPS系统的局限性和RTK传输数据链本身可靠性。本文以南方测绘S82型RTK仪器应用为例，在甘肃省南部山区村庄大比例尺数字测图中，对单基站RTK测量可靠性的检验和成果实测精度的评价进行讨论。