Large ionospheric gradients acting between a Ground Based Augmentation System (GBAS) reference station and an aircraft on approach could lead to hazardous position errors if undetected. Current GBAS stations provide solutions against this threat that rely on the use of “worst‐case” conservative threat models, which could limit the availability of the system.

中文翻译：

---

基于网络的电离层梯度监测以支持GBAS

如果未检测到，地面增强系统（GBAS）参考站与飞机进场之间的电离层梯度较大，可能会导致危险的位置误差。当前的GBAS站提供了针对这种威胁的解决方案，这些解决方案依赖于使用“最坏情况”的保守威胁模型，这可能会限制系统的可用性。