毫米波SAR卫星编队控制计算机设计

Design of Formation Control Computer for Millimeter Wave SAR Satellite

随着卫星向低成本、小型化的方向发展,针对毫米波合成孔径雷达(SAR)卫星的多星编队控制计算机轻量化、高密度设计问题,提出了利用可重构技术,功能模块化IP设计,功能重构、过程重构,实现编队控制计算机轻量化高密度设计。编队控制计算机除具备编队控制功能外,还集成了星载计算机、姿态轨道控制、星间信息交互等功能,用以完成卫星数据管理、姿态控制及星间信息交互和安全距离测量等任务。搭建半物理实时仿真平台进行仿真验证,结果表明:基于可重构技术的编队控制计算机有能力替代现有的星载计算机,成为未来毫米波SAR卫星平台的核心单机。

In view of the development of satellites towards low-cost and miniaturization,a formation control computer(FCC)with lightweight and high functional density for millimeter-wave(MW)synthetic aperture radar(SAR)satellites is proposed.The reconfiguration technology,functional modular IP design,function reconstruction,and process reconfiguration are carried out.In addition to the formation control function,the FCC integrates the functions of on-board satellite computer,attitude and orbit control computer(AOCC),etc.It can accomplish tasks such as satellite data management,attitude control,intersatellite information exchange,and safe distance measurement.A semi-physical real-time simulation platform is built for simulation verification.The results show that the FCC based on the reconfiguration technology can replace the existing on-board computer and become the core standalone of future MW SAR satellite platform.