精密单点定位(PPP)原理及其在境外工程项目中的应用  

Principle of precise point positioning(PPP) and its applicayion in overseas projects

作　　者：唐有国 麦若绵[1] 贾登科[1] 

机构地区：[1]中交第四航务工程勘察设计院有限公司,广东广州510230

出　　处：《水运工程》2013年第7期127-130,共4页Port & Waterway Engineering

摘　　要：GPS精密单点定位(PPP)方法采用单台双频GPS接收机进行观测并解算获得毫米级高精度的基于ITRF框架的测站坐标,因其数据采集及数据处理方便、简单且费用低,极具实用性。简述PPP的基本原理及其精度分析,并结合近几年在境外的工程案例,探讨该技术在类似项目中应用的可行性。GPS precise point positioning is a positioning method which using a single double frequency receiver to observe and calculate very precise positions up to several millimeter level based on the international terrestrial frame （ITRF）. It is very useful due to its easy fieldwork and simple data processing. The paper introduces the principle of this method and its high precision. Combining with some projects finished by our company in recent years, this paper discusses the application to similar projects.

关 键 词：GPS 精密单点定位(PPP) 精密星历 在线PPP ITRF国际地球参考框架 

分 类 号：TU195[建筑科学—建筑理论]