PPP-RTK (Precise Point Positioning – Real Time Kinematic) is a positioning method by GNSS (Global Navigation Satellite Systems), based on the SSR (State Space Representation) concept. One challenge for the fast convergence of PPP-RTK solutions in real-time applications is the mitigation of atmospheric effects (troposphere and ionosphere). Thus, using atmospheric models, PPP solutions can achieve accurate positions and shortened initialisation time. Such performance depends on the topology of permanent station networks and atmospheric conditions. The main objective of this contribution is to study the PPP-RTK and the optimised infrastructure in terms of costs and benefits to realise the method using atmospheric corrections.

PPP-RTK（精确单点定位 - 实时运动学）是 GNSS（全球导航卫星系统）基于 SSR（状态空间表示）概念的定位方法。实时应用中 PPP-RTK 解决方案快速收敛的挑战之一是减轻大气影响（对流层和电离层）。因此，利用大气模型，PPP 解决方案可以实现准确的定位并缩短初始化时间。这种性能取决于永久站网络的拓扑结构和大气条件。本贡献的主要目标是研究 PPP-RTK 和优化基础设施的成本和效益，以实现使用大气校正的方法。