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The radio frequency telecommunications system for the NASA Europa clipper mission
The NASA Europa Clipper mission, a partnership between the California Institute of Technology Jet Propulsion Laboratory (JPL) and the Johns Hopkins University Applied Physics Laboratory (APL), is currently in Phase B and scheduled for launch in 2022. A Jupiter orbiter, it will perform repeated flybys of the moon, Europa, to assess the icy moon’s structure and habitability. The spacecraft’s dual X/Ka-band radio frequency telecommunications subsystem has five primary functions: Provide spacecraft command capability ...
Srinivasan, Dipak; Angert, Matthew; Ballarotto, Mihaela; Berman, Simmie; Bray, Matthew; Garvey, Robert; Hahne, Devin; Haskins, Chris; Porter, Jamie; Schulze, Ron; Scott, Chris; Sharma, Avinash; Sheldon, Colin;
Published by: Proceedings of the International Astronautical Congress, IAC Published on:
Data handling; Earth (planet); Microwave antennas; NASA; Orbits; Propulsion; Radio navigation; Radio waves; Space flight; Telecommunication; Traveling wave tubes; Parker Engineering
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