Computer Science – Performance
Scientific paper
Jan 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984spie..440...91s&link_type=abstract
IN: Synthetic aperture systems; Proceedings of the Meeting, San Diego, CA, August 25, 26, 1983 (A85-22710 09-74). Bellingham, WA
Computer Science
Performance
Performance Tests, Reflecting Telescopes, Synthetic Apertures, Wave Front Reconstruction, Algorithms, Cost Effectiveness, Covariance, Irradiance, Matrices (Mathematics), Mirrors, Polynomials, Weight Reduction
Scientific paper
The construction of telescope systems with large apertures has been made possible by recent advances in lightweight mirror technology. An increase in aperture size leads to increased irradiance on the image plane of the telescope and, consequently, to decreased exposure times for astronomical photography. One of the problems arising in connection with the construction of such large telescopes is related to the testing of the system. A cost-effective approach for performing the test involves the use of several smaller optical flats, or subapertures, across the telescope aperture. The present investigation will provide some insights into subaperture testing, taking into account a brief description of the Kwon-Thunen algorithm and a covariance matrix calculation. A subaperture testing experiment is also discussed.
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