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ＧＰＳ是全球卫星定位系统的简称，通过介绍ＷＩＬＤ２００ＧＰＳ测量系统在高速公路Ⅲ等导线控制测量中的试用情况以及对计算成果进行统计分析，提出如何将ＧＰＳ网解算得到的ＷＧＳ—８４系统的大地高转换成工程需要的正常高数据的一些做法。
GPS is the abbreviation of Global Positioning System (GPS). By introducing the trial of WILD200 GPS measuring system in the control survey of freeway Ⅲ and other conductors, and making statistical analysis of the calculation results, it is proposed how to calculate the height of the WGS-84 system from the GPS network Convert some of the normal high data needed for engineering.