Computer Science – Performance
Scientific paper
Jan 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987spie..818..408h&link_type=abstract
IN: Current developments in optical engineering II; Proceedings of the Meeting, San Diego, CA, Aug. 18-21, 1987 (A89-10258 01-74
Computer Science
Performance
Astrometry, Astronomical Photometry, Ronchi Test, Signal To Noise Ratios, Spaceborne Telescopes, Aberration, Astigmatism, Field Of View, Fourier Transformation, Modulation Transfer Function
Scientific paper
It has been proposed that extrasolar planetary systems may be observed if perturbations in star position due to the orbit of Jupiter-type planets could be detected. To see this motion, high accuracy measurements of 0.01 milliarcsecond are required over a relatively large field of view. Techniques using a moving Ronchi grating have been proposed for this application and have been successful in ground-based lower resolution tests. The method may have application to other precision angular measurement problems. This paper explores the theoretical description of the method, considers certain of the error sources, and presents a preliminary calculation of the performance which may be achieved.
Huang Chunsheng
Lawrence George N.
Levy Eugene H.
McMillan Robert S.
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