基于FMI的卫星数字仿真平台设计及实现

Design and Implementation of Satellite Digital Simulation Platform Based on FMI

针对卫星仿真技术的标准化和通用化发展需求,基于FMI(functional mock-up interface)的接口标准和模型复用技术,构建一个能够支持卫星数字仿真的工具体系架构,在此基础上,运用模块化思想设计了卫星数字仿真平台,并给出Simulink及C/C++模型的FMI标准封装方法.利用卫星数字仿真平台,搭建了多星运行仿真场景,通过远程过程调用技术,将仿真过程数据推送到可视化平台中,完成对卫星运行场景的可视化展示.仿真案例说明,卫星仿真平台可以对模型运行状态及变化趋势进行监控,同时,场景可视化平台可以对卫星的运行轨道及姿态等数据实时动态显示.

In view of the development needs of standardization and generalization of satellite simulation technology,a tool architecture is constructed that can support satellite digital simulation based on FMI(functional mock-up interface)and model reuse technology.On this basis,the satellite digital simulation platform is designed based on the idea of modularization,and the FMI standard wrapping method of Simulink and C/C++model is given.Using the satellite digital simulation platform,the multi satellite operation simulation scene is built.Through the remote process call technology,the simulation process data is pushed to the visualization platform to complete the visual display of the satellite operation scene.The simulation case shows that the satellite simulation platform can monitor the operation state and change the trend of the model.At the same time,the scene visualization platform can dynamically display the operation orbit,attitude and other data of the satellite in real time.