摘要
针对长寿命高价值卫星在轨维护的实际需求,开展卫星姿轨控分系统在轨故障复现、定位与星载软件升级、补丁快速仿真验证的新方法研究。采用虚拟化技术构造星载控制系统运行所需的全部硬件环境及其外部数据源,可等效模拟整星控制系统的实际硬件功能,进而仿真星上控制系统的空间运行状态。这种全数字化平台具备了多类型故障精确注入、内部状态监控和全数据流干预等特点,可对卫星姿轨控系统在轨维护中的软件升级行为仿真和全覆盖测试验证。该全数字化平台还能应用于卫星在轨运维的星地高保真同步运行,尤其是对卫星运行末期的可靠性增长和有效生命周期延长起到了重要的支撑保障作用。
Aiming at the demand for the on-orbit maintenance, a new simulation technique was developed. The simulation contained on-orbit failures reproduction and location, onboard software upgrade and patch. A virtual technology was used to construct all virtual hardware environment, imitate their function and simulate the real satellite control system. This all-digital platform implemented precise multi-type faults injection, internal state monitoring and data stream intervention very well. So it could roundly simulate and test the software upgrade of the attitude and orbit control systems. It could also be used in the high-fidelity simulation of satellite-ground synchronous operation and maintenance, especially it is very helpful to improve the reliability of a satellite and prolong its life.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2016年第4期979-990,共12页
Journal of System Simulation
基金
国家自然科学基金(61308101)
关键词
虚拟化
全数字化平台
姿轨控
在轨维护
同步运行
virtual technology
all-digital platform
attitude and orbit control
on-orbit maintenance
synchronous operation
