基于数字卫星的仿真系统设计与应用

Design and Application of Simulation System Based on Digital Satellite

针对卫星数字化仿真加速比和通用性不足的问题,文章提出了基于数字卫星仿真系统的“低耦合、高兼容”设计方法。在仿真系统总体架构下,对数字卫星子系统中的内外接口、虚拟总线模块、星上单机仿真策略和数字场景子系统中轨道仿真模块、信道仿真模块、目标仿真模块的功能进行分析与设计。经该方法下开发的数字卫星仿真系统的测试验证,结果表明:该系统具备不小于30倍速的加速仿真能力并支持多星协同仿真,可为后续卫星数字化仿真系统的设计提供参考。

Aiming at the shortage of insufficient speedup ratio and universality of satellite digital simulation,a low coupling and high compatibility design method based on digital satellite simulation system is proposed in this paper.Under the overall structure of the simulation system,the function of the internal and external interfaces,virtual bus module,on-board stand-alone simulation strategy and the orbit simulation module,channel simulation module,and target simulation module in digital scene subsystem are analyzed and designed.The test and verification of the digital satellite simulation system developed under the method shows that the system has the capability to accelerate simulation at a speed with no less than 30 times and supports multiple satellites collaborative simulation,which can provide a reference for the design of subsequent satellite digital simulation systems.