区域CORS网观测数据实时对流层延迟建模

针对高精度实时定位中区域天顶对流层延迟ZTD的时空特性导致插值精度不高的问题，提出一种基于高程归算的克里金插值模型。采用区域CORS网观测数据解算ZTD用于建模分析，相比于现有的其他方法，该模型能够提升插值精度，参与建模测站数量较少时其均方根误差RMSE仍可保持在10 mm以内，为区域实时高精度定位提供了基础。

Real Time Tropospheric Delay Modeling of Regional CORS Network Observation Data

Aiming at the problem of low interpolation accuracy caused by the spatiotemporal characteristics of regional zenith tropospheric delay (ZTD) in real-time precision positioning, we propose a Kriging interpolation model based on elevation reduction. We use regional CORS network observation data to solve the ZTD value for modeling analysis. Compared with other existing methods, the model can improve interpolation accuracy. When fewer stations participate in modeling, the RMSE can still be kept below 10 mm, which provides a basis for regional real-time high-precision positioning.