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Found 2 entries in the Bibliography.
Showing entries from 1 through 2
2017 |
Flight software verification methods in frontier radio for solar probe plus mission Success of deep space missions requires comprehensive performance verification for all hardware and software systems on the spacecraft over a broad scope of conditions and configurations, including the telecommunications subsystem. NASA Solar Probe Plus mission uses a software-defined radio for its telecommunications; thus a dedicated suite of tests are required for verification of the radio software in addition to traditional hardware verification procedures. Frontier Radio, developed by Johns Hopkins University Applied Phy ... Kufahl, Katelyn; Wortman, Kristin; Burke, Linda; Hennawy, Joseph; Adams, Norman; Sheehi, Joseph; Published by: IEEE Aerospace Conference Proceedings Published on: Computer software selection and evaluation; Digital radio; Digital signal processing; Instrument testing; Interplanetary flight; NASA; Probes; radio receivers; Software radio; Verification; Parker Engineering |
2016 |
Enabling coherent Ka-band downlink with a software-defined radio The migration to Ka-band for science downlink on deep space missions increases data rates significantly, but also presents new challenges to radio and RF system designers. One challenge is to maintain low carrier phase noise on a coherent downlink. Thermal noise on the X-band uplink that is within the bandwidth of the carrier recovery process modulates the phase of the coherent downlink. For missions that use X-band for command uplink and Ka-band for science downlink, such as the NASA Solar Probe Plus mission, the ratio of d ... Adams, Norman; Angert, Matthew; Copeland, David; Haskins, Christopher; Published by: IEEE Aerospace Conference Proceedings Published on: Additive noise; Interplanetary flight; NASA; Radio navigation; Software radio; Parker Engineering |
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