高分多模卫星飞行程序设计及验证

Design and On-orbit Verification of GFDM-1 Satellite Flight Program

高分多模卫星(GFDM-1)兼具高分与敏捷特性,具备多种敏捷成像模式,同时具备自主任务管理功能。其飞行程序设计具有在轨工作模式多样、工作状态复杂且耦合性强等特点,首次采用天地一体的自主任务管理方式进行飞控实施。因此,在飞行程序设计中重点开展了事件时序设计和优化,合理设计并行时序并综合采用多种执行方式对事件流程进行优化,实现快速状态建立;针对卫星设计和敏捷特点分析,识别太阳翼展开及捕获跟踪、多模式高频度的载荷任务规划、中继数传模式等关键事件,对其开展地面仿真进行设计优化。高分多模卫星在轨应用和验证结果表明:卫星在轨运行良好,各飞行事件有序开展,飞行程序设计合理有效。

GFDM-1 satellite has high resolution and agile features with a variety of agile imaging modes and autonomous task management capabilities.Its flight program design has diverse on-orbit working modes,complex working states and strong couplings.And for the first time,the flight control is carried out by the autonomous space-ground mission management method.Therefore,the flight program design focuses on operation procedure design and optimization.Reasonable design of parallel operations and diverse executive modes are used to optimize the operation procedure,and to setup the state rapidly.Based on the satellite design and agile characteristics,the key events such as solar panel deployment,measurement and state tracking,multi-mode and high-frequency payload mission planning and image data relay transmission mode are recognized.The ground simulation is carried out for design optimization.The on-orbit performance of GFDM-1 satellite shows that the satellite working state is well established,all flight operations are carried out in order,and the flight program design is reasonable and effective.