由于采用的红外地平仪无法测量卫星的偏航信息，提出了一种基于偏航观测器的姿态控制方案。
Since the measurement of the yaw angle is unavailable by horizon sensor, an attitude control scheme of the satellite is proposed based on yaw observer.
地球模拟器是卫星姿态测量控制关键部件—摆动扫描式红外地球敏感器的一种重要地面模拟试验与精度标定仪器。
The earth simulator is an important ground simulation test and precision calibration equipment for infrared earth sensor which is the key component in the satellite controlling system.
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