光学学报, 2012, 32 (12): 1211004, 网络出版: 2012-12-06   

地球临边/天底同时探测的紫外环形成像仪

Development of Ultraviolet Annular Imager for Earth Limb and Nadir Sounding Simultaneously
作者单位
1 中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033
2 中国科学院大学, 北京 100049
3 吉林大学机械科学与工程学院, 吉林 长春 130012
摘要
论述了地球临边及天底模式大气探测的原理,依据应用要求设计和研制出了具有全新探测模式的在近地球轨道能同时对地球临边和天底大气进行探测的紫外环形成像仪原理样机。该样机采用折反式光学系统,它的三个工作波段分别为285~295 nm、305~315 nm和350~360 nm,能实现地球临边(对应大气垂直高度0~120 km)多方位以及天底10°视场角内的成像探测,其探测数据被用于反演大气辐射多方位的空间分布及动态结构。最后对该原理样机的310、355两个通道进行了性能评价。结果表明,其空间分辨率和信噪比均达到设计指标要求,满足空间紫外遥感的应用。
Abstract
The atmosphere sounding′s principle of limb and nadir detecting modes are discoursed, and the prototype of ultraviolet (UV) annular imager with fire-new detecting modes is designed, which can gets the earth limb and nadir images of atmosphere simultaneously on the near-earth orbit. The prototype has a refraction-reflection optical system, and its spectral ranges are 285~395 nm, 305~315 nm and 350~360 nm. It can realize the image sounding with multiple azimuths by earth′s limb mode (the vertical height of the atmosphere is from 0~120 km)and 10° field of view by nadir mode, and the data received can be used to retro-deduce the spatial distribution and the dynamic state configuration of the atmospheric radiation within multiple azimuths. The performances for 310 and 355 channels of the prototype are tested. The results show that the spatial resolution and the signal-to-noise ratio are both satisfied the design requirements and it is suitable for the application of the space UV remote sensing.

于向阳, 王淑荣, 黄煜, 林冠宇. 地球临边/天底同时探测的紫外环形成像仪[J]. 光学学报, 2012, 32(12): 1211004. Yu Xiangyang, Wang Shurong, Huang Yu, Lin Guanyu. Development of Ultraviolet Annular Imager for Earth Limb and Nadir Sounding Simultaneously[J]. Acta Optica Sinica, 2012, 32(12): 1211004.

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