终端区局域增强系统故障场景的仿真研究

Research on Scene of Failure of LAAS by Simulation

结合GPS信号在实际传播中可能遇到的干扰进行故障场景模拟，为局域增强系统完好性监测平台提供模拟的故障数据。设计了多种类型的故障场景，包括伪距跳变、载波周跳、电离层故障和星钟故障等，并对各种故障场景设计了相应的故障模型，用户可以根据需要对指定接收机、指定卫星选择某一具体时刻或者某段连续时刻，进行故障场景的模拟。

Take the signal disturbing about GPS in transmitting into account, we have done some research on the scene of failure of LAAS by Simulation, which provided the failure data for integrity monitor system of LAAS. We designed several type of failures, including pseudorange failure, carrier phase failure, ionosphere failure and clock failure, and also gave models about all the failures. We can simulate the scene of failure by selecting the specified receiver, the specified satellite and the specified times.