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.
引用
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页码：27 / 28
页数：2
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