NASA'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.


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    Title :

    Comparing On-Orbit and Ground Performance for an S-Band Software-Defined Radio


    Contributors:

    Conference:

    International Astronautical Congress ; 2014 ; Toronto, ON, Canada


    Publication date :

    2014-09-29


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English