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指出IGSO卫星轨道及姿态运动特点使得地敏探头会扫描经过两极区域,通过国外案例介绍说明分析工作的必要性。简要介绍摆动扫描式红外地球敏感器的复合视场及工作原理,重点分析地敏受两极地区红外辐射波动影响,说明地敏输出姿态角误差成因,建立基于STK软件的仿真工程,对地敏探头受扰情况进行仿真分析。提出解决地敏受两极红外辐射干扰问题的处理措施,利用仿真预报的受扰时段进行探头干扰保护,确保地敏输出姿态角正常。
It is pointed out that the characteristics of orbital and attitude movement of IGSO satellite make the probe of the geomagnetic field scan through two polar regions and the necessity of analysis work is introduced through the introduction of foreign cases. This paper briefly introduces the compound field of view and working principle of the oscillating scanning infrared earth sensor. It focuses on the analysis of the influence of the geminim to the polarization of the infrared radiation in the bipolar area, and explains the cause of the gemini output attitude error. The simulation project based on STK software is established. The disturbed situation carries on the simulation analysis. The measures to deal with the problem of Gimmophilus interfered by the polarization of the infrared radiation are put forward. The interference of the probe is protected by the disturbed period of the simulation forecast, so as to ensure the normal output attitude of the Gummine.