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Proceedings Paper

Estimation of fringe parameters
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Paper Abstract

In this report we explore replacing the widely used optimal V2 estimator with a model-fitting approach. We show that it is possible to fit the fringe power spectra with a physically reasonable model. This approach eliminates the biggest problem with the standard squared visibility estimator - determining the additive, dector-noise bias. We examine the dependence of the bias on count rate for consistency betwee on- and off-fringe measurements. The change of bias with fringe frequency provides additional information about the performance of the detectors. We have also applied a similar approach to the bias correction for the triple product, with comparable results.

Paper Details

Date Published: 20 October 2004
PDF: 10 pages
Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); doi: 10.1117/12.552416
Show Author Affiliations
David Mozurkewich, Seabrook Engineering (United States)
J. Thomas Armstrong, Naval Research Lab. (United States)
G. Charmaine Gilbreath, Naval Research Lab. (United States)
Thomas A. Pauls, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 5491:
New Frontiers in Stellar Interferometry
Wesley A. Traub, Editor(s)

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