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Proceedings Paper

Pointing control of a large ground-based laser tracking telescope
Author(s): Lloyd W. Hodge; Jerome D. Gottesman; Sarma N. Gullapalli
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Paper Abstract

This paper describes the design, analysis and simulation studies of the pointing control system of a gimballed large diameter (3.5 M) ground-based telescope, to meet stringent requirements. The gimbal forms, Alt-Alt, Alt-Alt-Azimuth and Alt-Azimuth are compared in the concept selection. Structural mode shapes, derived from the Nastran models are included in the structural analysis and performance predictions. Pointing jitter prediction models include seismic and coolant flow power spectra. Worst case tracking scenarios are discussed, with suitable feed forward arrangements. Active secondary mirror mount options, as well as beam alignment options, are considered.

Paper Details

Date Published: 25 November 1992
PDF: 13 pages
Proc. SPIE 1697, Acquisition, Tracking, and Pointing VI, (25 November 1992); doi: 10.1117/12.138177
Show Author Affiliations
Lloyd W. Hodge, Lockheed Missiles & Space Co., Inc. (United States)
Jerome D. Gottesman, Hughes Danbury Optical Systems, Inc. (United States)
Sarma N. Gullapalli, Hughes Danbury Optical Systems, Inc. (United States)

Published in SPIE Proceedings Vol. 1697:
Acquisition, Tracking, and Pointing VI
Michael K. Masten; Larry A. Stockum, Editor(s)

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