Spacecraft system study: A study to define the impact of laser communication systems on their host spacecraft

Details Spacecraft system study: A study to define the impact of laser communication systems on their host spacecraft Spacecraft system study: A study to define the impact of laser communication systems on their host spacecraft

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984stin...8516159.&link_type=abstract

Final Report Hughes Aircraft Co., Los Angeles, CA. Electro-Optical and Data Systems Group.

Computer Science

Performance

Laser Applications, Optical Communication, Spacecraft Communication, Spacecraft Performance, Beacons, Performance Prediction, Pulsed Lasers, Satellite Orbits, Servomechanisms, Spacecraft Equipment, Spacecraft Tracking, Weight (Mass)

Scientific paper

The mutual influence of a laser communication system and its host spacecraft and the degree to which the mutual influence limited acquisition, tracking and pointing processes were investigated. A laser klink between a low earth orbiting (LEO) satellite and a geosynchronous earth orbiting (GEO) satellite was used as a baseline. The laser link between satellites was a generic channel transferring 500 Mbps data from the LEO to GEO using the GaAlAs laser as the laser light source. Major aspects of pointing and tracking with a satelliteborne optical system were evaluated including: (1) orbital aspects such as spacecraft relative motions, point ahead, and Sun snd Moon optical noise; (2) burst errors introduced by the electronic and optical noise levels; (3) servo system design and configurations, and the noise sources such as, sensor noise, base motion disturbances, gimbal friction torque noise; (4) an evaluation of the tracking and beacon link and the type of sensors used; (5) the function of the acquisition procedure and an evaluation of the sensors employed; and (6) an estimate of the size, weight and power needed for the satellite system.

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