NTRS - NASA Technical Reports Server

Back to Results
Spacecraft Multiple Array Communication System Performance AnalysisThe Communication Systems Simulation Laboratory (CSSL) at the NASA Johnson Space Center is tasked to perform spacecraft and ground network communication system simulations, design validation, and performance verification. The CSSL has developed simulation tools that model spacecraft communication systems and the space and ground environment in which the tools operate. In this paper, a spacecraft communication system with multiple arrays is simulated. Multiple array combined technique is used to increase the radio frequency coverage and data rate performance. The technique is to achieve phase coherence among the phased arrays to combine the signals at the targeting receiver constructively. There are many technical challenges in spacecraft integration with a high transmit power communication system. The array combining technique can improve the communication system data rate and coverage performances without increasing the system transmit power requirements. Example simulation results indicate significant performance improvement can be achieved with phase coherence implementation.
Document ID
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Hwu, Shian U.
(Barrios Technology, Inc. Houston, TX, United States)
Desilva, Kanishka
(Jacobs Engineering Group, Inc. Houston, TX, United States)
Sham, Catherine C.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2010
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Report/Patent Number
Meeting Information
Meeting: 8th IEEE International NEWCAS Conference
Location: Montreal
Country: Canada
Start Date: June 20, 2010
End Date: June 23, 2010
Sponsors: Institute of Electrical and Electronics Engineers
Funding Number(s)
OTHER: ESCG/C017-A1000-070`
Distribution Limits
Public Use Permitted.
No Preview Available