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Proceedings Paper

A post-processing receiver for the lunar laser communications demonstration project
Author(s): Meera Srinivasan; Kevin Birnbaum; Michael Cheng; Kevin Quirk
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Paper Abstract

The Lunar Laser Communications Demonstration Project undertaken by MIT Lincoln Laboratory and NASA’s Goddard Space Flight Center will demonstrate high-rate laser communications from lunar orbit to the Earth. NASA’s Jet Propulsion Laboratory is developing a backup ground station supporting a data rate of 39 Mbps that is based on a non-real-time software post-processing receiver architecture. This approach entails processing sample-rate-limited data without feedback in the presence high uncertainty in downlink clock characteristics under low signal flux conditions. In this paper we present a receiver concept that addresses these challenges with descriptions of the photodetector assembly, sample acquisition and recording platform, and signal processing approach. End-to-end coded simulation and laboratory data analysis results are presented that validate the receiver conceptual design.

Paper Details

Date Published: 19 March 2013
PDF: 9 pages
Proc. SPIE 8610, Free-Space Laser Communication and Atmospheric Propagation XXV, 86100Q (19 March 2013); doi: 10.1117/12.2005190
Show Author Affiliations
Meera Srinivasan, Jet Propulsion Lab. (United States)
Kevin Birnbaum, Jet Propulsion Lab. (United States)
Michael Cheng, Jet Propulsion Lab. (United States)
Kevin Quirk, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 8610:
Free-Space Laser Communication and Atmospheric Propagation XXV
Hamid Hemmati; Don M. Boroson, Editor(s)

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