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Adjusting Surfaces Of Large Antenna ReflectorsNew approach more effective than traditional rms-surface-distortion approach. Optimization procedure for control of shape of reflector of large space antenna (LSA). Main feature is shape-controlling mathematical mechanism driven by need to satisfy explicit EM design requirements. Uses standard finite-element structural analysis, aperture-integration EM analysis, and constrained optimization techniques to predict set of actuator inputs that improves performance of antenna while minimizing applied control effort. Procedure applicable to wide variety of LSA concepts.
Document ID
19890000345
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Padula, Sharon L. (NASA Langley Research Center, Hampton, VA.)
Adelman, Howard M. (NASA Langley Research Center, Hampton, VA.)
Bailey, Marion C. (NASA Langley Research Center, Hampton, VA.)
Hoftka, Raphael T. (Virginia Polytechnic Inst. and State Univ.)
Date Acquired
August 14, 2013
Publication Date
July 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 7
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
LAR-13851
Accession Number
89B10345
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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