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Proceedings Paper

Ladar measurements of satellite vibrations with post-heterodyne detection autodyne receivers
Author(s): Kenneth I. Schultz; J. A. Daley; D. G. Kocher; James M Spinks; Joseph R. Theriault; Shalom Fisher; Lawrence W. Taylor Jr.
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Paper Abstract

Vibration signatures of the Low Power Atmospheric Compensation Experiment (LACE) satellite were obtained using a ground based CO2 laser radar. The laser radar operated in a cw mode and utilized autodyne receivers to extract relative target velocity information between a germanium retroreflector located at the base of the satellite and a retroreflector array located at the tip of an extended forward boom. Time-frequency analysis algorithms were applied to the vibration data to investigate the correlation between excitations and modal structure. The resultant analysis suggests that vibration modes of an on-orbit space craft can be suppressed using simple open-loop techniques.

Paper Details

Date Published: 15 October 1993
PDF: 14 pages
Proc. SPIE 1936, Applied Laser Radar Technology, (15 October 1993); doi: 10.1117/12.157115
Show Author Affiliations
Kenneth I. Schultz, Lincoln Lab./MIT (United States)
J. A. Daley, Lincoln Lab./MIT (United States)
D. G. Kocher, Lincoln Lab./MIT (United States)
James M Spinks, Lincoln Lab./MIT (United States)
Joseph R. Theriault, Lincoln Lab./MIT (United States)
Shalom Fisher, Naval Research Lab. (United States)
Lawrence W. Taylor Jr., NASA Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 1936:
Applied Laser Radar Technology
Gary W. Kamerman; William E. Keicher, Editor(s)

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