Earth-image tracking in the IR for deep space optical communications

被引：0
|
作者：
Hemmati, H [1 ]
Chen, Y [1 ]
Lee, S [1 ]
Ortiz, GG [1 ]
机构：
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
来源：
2005 Digest of the LEOS Summer Topical Meetings | 2005年
关键词：
D O I：
暂无
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Sub-microradian level laser beam pointing to an Earth-based receiver is required for deep space optical communications. This requires a beacon emanated from Earth towards the spacecraft. The beacon could be a laser or reflected sunlight from Earth. Earth image tracking in the visible is hampered by significant albedo variations and/or crescent Earth image yielding large central errors. Here, we report results of Earth-image tracking in the infrared (8 to 13 micron) region of the spectrum with the aim of substantially alleviating the two challenges mentioned earlier. (c) 2005 Optical Society of America.
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页码：27 / 28
页数：2
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