This paper analyzes the components and features of GPS, discusses differential dynamic positioning technology with GPS in real time and its error sources.
分析了全球定位系统GPS的组成及功能，探讨了GPS实时差分动态定位技术及其误差来源。
In this context, a differential GPS (DGPS) positioning, carrier phase technology emerged and rapid development.
在此背景下，差分gps (DGPS)定位、载波相位等技术应运而生并飞速发展。
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