DocumentCode :
3512229
Title :
Adaptive Power Control for Space Communications
Author :
Thompson, Willie L., II ; Israel, David J.
Author_Institution :
Microwave & Commun. Syst. Branch, NASA, Greenbelt, MD
fYear :
2008
fDate :
1-8 March 2008
Firstpage :
1
Lastpage :
5
Abstract :
This paper investigates the implementation of power control techniques for crosslinks communications during a rendezvous scenario of the crew exploration vehicle (CEV) and the lunar surface access module (LSAM). During the rendezvous, NASA requires that the CEV supports two communication links: space-to-ground and crosslink simultaneously. The crosslink will generate excess interference to the space-to-ground link as the distances between the two vehicles decreases, if the output power is fixed and optimized for the worst-case link analysis at the maximum distance range. As a result, power control is required to maintain the optimal power level for the crosslink without interfering with the space-to-ground link. A proof-of-concept will be described and implemented within Goddard Space Flight Center (GSFC) Communications, Standard, and Technology Lab (CSTL).
Keywords :
adaptive control; power control; space communication links; telecommunication control; Communications Standard and Technology Lab; Goddard Space Flight Center; NASA; adaptive power control; crew exploration vehicle; crosslinks communications; lunar surface access module; maximum distance range; optimal power level; proof-of-concept; space communications; space-to-ground links; worst-case link analysis; Adaptive control; Communication standards; Interference; Moon; NASA; Power control; Power generation; Programmable control; Space technology; Space vehicles;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Aerospace Conference, 2008 IEEE
Conference_Location :
Big Sky, MT
ISSN :
1095-323X
Print_ISBN :
978-1-4244-1487-1
Electronic_ISBN :
1095-323X
Type :
conf
DOI :
10.1109/AERO.2008.4526346
Filename :
4526346
Link To Document :
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