A beacon tracker and point ahead system for optical communications

Details A beacon tracker and point ahead system for optical communications A beacon tracker and point ahead system for optical communications

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie.1111..268g&link_type=abstract

IN: Acquisition, tracking, and pointing III; Proceedings of the Meeting, Orlando, FL, Mar. 27-29, 1989 (A90-39001 17-17). Bellin

Computer Science

Optical Communication, Satellite Communication, Tracking (Position), Beacons, Communication Networks, Pointing Control Systems, Schmidt Telescopes

Scientific paper

This paper describes the design and fabrication of a self contained satellite beacon tracking system for optical communications. This device is installed on a tracking mount and uses high bandwidth steering mirrors to effectively cancel atmospheric turbulence and mount jitter. The steering mirrors are integrated with a 20-cm, unobscured telescope used for receiving the beacon and for transmitting a modulated communications uplink. Satellite range and velocity calculated from its ephemeris are used to offset the transmitted beam from the beacon by as much as 50 microradians to compensate for optical transit time.

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