【摘 要】
：
实时精密单点定位(Real-Time Precise Point Positioning,RT-PPP)技术是当前GPS导航定位领域的研究热点,也是未来在全球范围内实现实时高精度静态或动态定位的关键技术之
【机 构】
：
广州中海达卫星导航技术股份有限公司,广州,中国,511400
论文部分内容阅读
实时精密单点定位(Real-Time Precise Point Positioning,RT-PPP)技术是当前GPS导航定位领域的研究热点,也是未来在全球范围内实现实时高精度静态或动态定位的关键技术之一.PPP技术不需要坐标已知的固定参考站,不受基线长度的制约,单台接收机即可在全球范围内进行静态或动态定位,并且能直接得到全球同精度的ITRF框架内的精密三维坐标.计算量和耗时仅是测站数的线性增长等.目前市场上已经有了部分基于RT-PPP技术商用服务系统,如天宝的RTX服务、合众思壮的中国精度服务等,RT-PPP服务的推出对RTK的定位有了很好辅助和增强,特别是在基准站信号丢失时对定位精度进行维持.本文讨论了建立RT-PPP系统的技术要点,并描述了中海达RTP系统的建设方案,并对系统的定位精度、收敛时间等指标进行测试.
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