导航系统性能仿真面临多领域模型集成和分析的困难。研究了仿真模型可移植性(simulation model portability,SMP2.0)规范,分析了卫星导航系统仿真的基本特点和需求,提出了卫星导航性能仿真的可移植性框架,建立了基于SMP2.0的导航仿真应用架构。该架构包含导航系统模型设计、开发、集成、运行和试验分析,涵盖了所有导航系统大系统性能指标的仿真分析。最后,基于此方法采用GALILEO系统相关想定数据对其导航性能指标进行了仿真和试验分析。结果表明,本文所提方法和技术框架能够很好地满足卫星导航系统仿真的特殊需求。
The integrating and analysis of multi-domain models is a hot research issue in the simulation of performance for satellite navigation systems.The simulation model portability standard(SMP2.0) is researched firstly,and then the requirements and features of a satellite navigation system are analyzed,and the architecture of portability for the simulation of performance is proposed,the system operation architecture based on SMP2.0 is developed.The system architecture consists of model design,development,integrating,executing and analysis,and can be used to simulate and analyze the performance for navigation systems.Finally,the regional performance of the GALILEO satellite navigation system is analyzed based on the architecture and method,which can fit the features of the simulation for navigation systems well.