Ladar measurements of satellite vibrations with post-heterodyne detection autodyne receivers

Kenneth I. Schultz; J. A. Daley; D. G. Kocher; James M Spinks; Joseph R. Theriault; Shalom Fisher; Lawrence W. Taylor Jr.

doi:10.1117/12.157115

15 October 1993 Ladar measurements of satellite vibrations with post-heterodyne detection autodyne receivers

Kenneth I. Schultz, J. A. Daley, D. G. Kocher, James M Spinks, Joseph R. Theriault, Shalom Fisher, Lawrence W. Taylor Jr.

Author Affiliations +

Proceedings Volume 1936, Applied Laser Radar Technology; (1993) https://doi.org/10.1117/12.157115
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

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.

Citation Download Citation

Kenneth I. Schultz, J. A. Daley, D. G. Kocher, James M Spinks, Joseph R. Theriault, Shalom Fisher, and Lawrence W. Taylor Jr. "Ladar measurements of satellite vibrations with post-heterodyne detection autodyne receivers", Proc. SPIE 1936, Applied Laser Radar Technology, (15 October 1993); https://doi.org/10.1117/12.157115

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