Spacecraft require precise relative positioning data for docking and formation flying. While GPS provides this near Earth, deep space missions require alternative technologies. One such technology is a vision-based navigation sensor system developed at Texas A&M University that uses an electro-optical sensor combined with light sources or beacons. This patented sensor has shown accuracies better than one part in 2000 of the field of view and involves a new approach using simultaneous activation of beacons with frequency division multiplexing.
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Abstract(Ranjeet Kumar Raushan)
1. ABSTRACT
Spacecraft missions such a spacecraft docking and formation flying
requires high-precision relative position and attitude data. Although a global
positioning system (GPS) can provide this capability near the earth, deep space
missions require the use of alternative technologies. One such technology is the
vision-based navigation (VISNAV) sensor system developed at Texas A&M university
.J comprises an electro optical sensor combined with light sources or beacons. This
patented sensor has an analog detector in the focal plane with a rise time of a few
microseconds. Accuracies better than one part in 2000 of the field of view have been
obtained .this paper presents a new approach involving simultaneous activation of
beacons with frequency division multiplexing as part of the VISNA V sensor system.
