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Comparing On-Orbit and Ground Performance for an S-Band Software-Defined RadioNASA's Space Communications and Navigation Testbed was installed on an external truss of the International Space Station in 2012. The testbed contains several software-defined radios (SDRs), including the Jet Propulsion Laboratory (JPL) SDR, which underwent performance testing throughout 2013 with NASAs Tracking and Data Relay Satellite System (TDRSS). On-orbit testing of the JPL SDR was conducted at S-band with the Glenn Goddard TDRSS waveform and compared against an extensive dataset collected on the ground prior to launch. This paper will focus on the development of a waveform power estimator on the ground post-launch and discuss the performance challenges associated with operating the power estimator in space.
Document ID
20140017163
Document Type
Presentation
Authors
Chelmins, David T.
(NASA Glenn Research Center Cleveland, OH United States)
Welch, Bryan W.
(NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
December 9, 2014
Publication Date
September 29, 2014
Subject Category
Communications And Radar
Report/Patent Number
GRC-E-DAA-TN18125
Meeting Information
International Astronautical Congress(Toronto, ON)
Funding Number(s)
WBS: WBS 553323.04.10.04.01.03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
International Space Station
waveforms
space communication

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