Earth-Image Tracking in the IR for Deep Space Optical Communications
Earth-Image Tracking in the IR for Deep Space Optical Communications
- New search for: Hemmati, Hamid
- New search for: Chen, Yinging
- New search for: Lee, Shinhak
- New search for: Ortiz, Gerard G.
- New search for: Hemmati, Hamid
- New search for: Chen, Yinging
- New search for: Lee, Shinhak
- New search for: Ortiz, Gerard G.
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.
Document information
Earth-Image Tracking in the IR for Deep Space Optical Communications
2005-07-25
Preprint
No indication
English
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