NASA NTRS · 20210002087
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Ceniceros, J., Lee, S., Portillo, A., Ortiz, G. G.. 2001-01-25. Functional demonstration of accelerometer-assisted beacon tracking. https://ntrs.nasa.gov/citations/20210002087
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Free-space optical communications offers expanded data return capacity, from probes distributed throughout the solar system and beyond. Space-borne and Earth-based optical transceivers used for communicating optically, will periodically encounter near Sun pointing. This will result in an increase in the scattered background light flux, often contributing to degraded link performance. The varying duration of near Sun pointing link operations relative to the location of space-probes, is discussed in this paper. The impact of near Sun pointing on link performance for a direct detection photon-counting communications system is analyzed for both ground- and space-based Earth receivers. Finally, impact of near Sun pointing on spaceborne optical transceivers is discussed.
This presentation will describe the details of the functional demonstration of accelerometer-assisted beacon tracking and transmit laser pointing in a laboratory environment under simulated s/c vibration.
We present a preliminary design for a tracking and pointing subsystem for the optical communication link between the International Space Station (ISS) and a ground receiver at Table Mountain Facility.