航天器GN&C系统功能行为建模与仿真平台研究

Research on Function-Behavior Modeling and Simulation Platform of Spacecraft GN&C System

在航天器近距离相对运动任务规划的研究中,为了实现验证对航天器制导、导航与控制(GN&C)系统的功能行为建模方法与仿真平台进行了研究。在分析了航天器GN&C系统的功能结构以及各子系统之间的状态约束,建立其功能行为模型的基础上,根据MVC(Model-View-Controller)设计模式搭建平台框架,综合利用Java/MATLAB/VC++,集成系统模型算法,驱动任务指令生成与调度,设计跨平台数据传输机制,完成仿真平台开发。系统仿真平台灵活开放,支持任务设计、规划功能,可实现飞行方案的仿真推演。

This paper researches the function - behavior modeling method and the simulation platform of spacecraft guidance, navigation and control （GN＆C） system with background of spacecraft proximity relative motion mission planning. First, the functional - behavioral model of spacecraft GN＆C system is presented based on analyzing the functional structure and state constraints between subsystems. The simulation platform is developed by Java/MAT- LAB/VC ＋ ＋ synthetically, after integrating system models and algorithms, generating and scheduling mission instructions, designing data transmission mechanism between different platforms, whose framework is built according to MVC （Model -View- Controller） design pattern. This system simulation platform is flexible and extendable, it supports mission design and planning, and can implement simulation gaming of flying scheme.