Physics – Optics
Scientific paper
Oct 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jaere...7..355m&link_type=abstract
Journal of Aerospace Engineering (ISSN 0893-1321), vol. 7, no. 4, p. 355-373
Physics
Optics
1
Control Equipment, Control Systems Design, Design Analysis, Mirrors, Optics, Spaceborne Telescopes, Spacecraft Design, Systems Analysis, Atmospheric Turbulence, Earth (Planet), Feasibility Analysis, Observatories, Power Beaming, Steering, Technology Utilization
Scientific paper
The pointing control system of the Hubble Space Telescope (HST) represents the current state of the art for the precision control of a large spacecraft. The proposed Next Generation Space Telescope (NGST) will require an order-of-magnitude increase in pointing resolution over that of HST. The use of active optics in the form of a steerable secondary mirror has been proposed for NGST in order to satisfy these requirements. An introduction to some of the design concepts associated with the design of the NGST, including a description of the proposed vehicle, a description of the pertinent design parameters, and a description of the types of disturbances to which it may be subjected, is given herein. A companion paper provides a description of a feasibility study conducted to evaluate the use of a control system for the implementation of 'beam steering' to compensate for the motion of the vehicle without necessitating the reorientation of the whole structure.
Jones Nicholas P.
May Scott B.
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