GEO卫星地敏自主干扰保护失效实时处置方法  

Real-Time Handling of Failures of Autonomous Interference Protection of GEO Satellite Earth Sensors

作　　者：胡文静 聂琨坤 刘准 

机构地区：[1]北京空间信息中继传输技术研究中心,北京100094

出　　处：《飞行器测控学报》2015年第6期533-539,共7页Journal of Spacecraft TT&C Technology

摘　　要：地球同步轨道卫星在每年春分、秋分前后25d左右一般会出现地敏探头太阳干扰,可以采用星上自主方式进行地敏干扰保护,以防御此种干扰的影响。星上自主干扰保护失效时,需要通过地面发送卫星遥控指令处置。由于当前GEO(Geostationary Earth Orbit,地球同步轨道)卫星地球敏感器自主干扰保护失效的实时处置占用遥控平台时间过长,会严重影响卫星有效载荷应用。所以,针对此问题,在地敏确定卫星姿态原理的基础上,分析了地敏自主干扰保护失效的机理,提出了基于软件进程的地敏太阳干扰保护流程和操作计划,设计了基于遥控指令序列的卫星实时判断脚本。经验证,此方法可将遥控平台占用时间从4h缩短至30min以内,为卫星有效载荷应用留出了时间窗口。The earth sensor probes of GEO （Geostationary Earth Orbit） satellites will generally encounter solar interference 25 days before and after spring equinox and autumnal equinox every year, and protection against the interference is provided autonomously on hoard. In case of failures of autonomous interference protection of a satellite, commands are transmitted from the ground to handle the situation. Current real-time handling of failures of earth sensor autonomous interference protection takes a very long time of the command software and seriously affects sat-ellite payload applications. To solve this problem, the failure mechanism of autonomous interference protection is analyzed based on the principle of satellite attitude determination with earth sensors, and operation flow and plan based on software process is proposed. Real-time satellite scripts based on command sequence are designed. The command software occupancy time is shortened from 4 hours to less than half an hour, thus setting aside a time window for satellite payload application.

关 键 词：地球同步轨道(GEO)卫星 地球敏感器 太阳干扰保护 实时处置 

分 类 号：V556[航空宇航科学与技术—人机与环境工程] P125.13[天文地球—天体测量]