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Published October 20, 2004 | Published
Book Section - Chapter Open

Fringe tracking at the IOTA interferometer

Abstract

We describe the fringe-packet tracking software installed at the infrared optical telescope array (IOTA). Three independently developed fringe-packet tracking algorithms can be used to equalise the optical path lengths at the interferometer. We compare the performance of these three algorithms and show results obtained tracking fringes for three independent baselines on the sky.

Additional Information

© 2004 Society of Photo-Optical Instrumentation Engineers. This research was made possible thanks to a Smithsonian Predoctoral Fellowship awarded to E. Pedretti, a Michelson Postdoctoral Fellowship awarded to S. Ragland and E Pedretti and a Marie Curie Fellowship (within the Fifth Framework programme "Improving Human Research Potential and the Socio–economic Knowledge Base) granted to N. D. Thureau (contract HPMF–CT-200-00966). The algorithm development work presented by E. Wilson was funded through Directors Discretionary Fund awards at NASA Ames Research Center.

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