数字测图中GPS控制测量实施探讨

Probe into the Implementation of GPS Control Survey in Digital Mapping

随着先进测量仪器、数字化测图软件的使用,地形图测量工作已经完全实现数字化,测图控制网也完全采用GPS技术进行。从GPS测图控制网设计和GPS外业观测入手,重点探讨了数字测图中GPS控制网的设计与选点,提出了GPS外业观测的作业和记录要求,对GPS数据处理中的基线解算和网平差的处理过程及要求进行了阐述。

Along with the application of advanced surveying instrument and digital mapping software,topographic map surveying work has fully realized digitalization,and the mapping control network has completely adopted GPS technology.This paper,from GPS mapping control network design and GPS field observation,mainly probes into the design and point selection of GPS control network in digital mapping,puts forward some requirements for the operation and record of GPS field observation,and expounds the baseline calculation in GPS data processing and the processing procedures of and requirements for network adjustment.