摘要
针对风云二号卫星上的自旋扫描地球敏感器进行整机实验的需求,提出了一种新型便携式双目地球模拟器。介绍了模拟器的系统组成、总体结构和工作原理,着重对关键技术进行了论述,分别叙述了地球弦宽和辐射亮度的计算过程;热地球和光学调制器的设计过程。测试结果表明:温度控制精度达到0.10℃,调制频率控制精度达到0.1 Hz,采用模拟器对敏感器进行了仿真实验,其输出信号与在外太空的工作状态波形基本吻合。
According to the whole machine experiment needs of spin scanning earth sensor of Fengyun-2 satellite, a new portable binocular earth sensor was proposed. The composition, general structure and working principle of the simulator system were introduced, and the key technology was disscussed. The calculation process of the earth chord width and radiant brightness, and the design process of thermal earth and optical modulator were described as well. The test result indicates that the temperature control precision reaches 0.10~C and the modulation frequency control precision reaches 0.1 Hz, the output signal of the earth simulator that sensor detected is basically anastomosis of its outer space working state waveform.
出处
《红外与激光工程》
EI
CSCD
北大核心
2012年第5期1147-1152,共6页
Infrared and Laser Engineering
关键词
地球模拟器
地球弦宽
辐射亮度
光学调制器
earth simulator
earth chord width
radiant brightness
optical modulator
