Cophasing studies for an imaging multi-aperture optical space interferometer

Didier Morancais; Bertrand Calvel; Philippe Roussel

doi:10.1117/12.185274

13 September 1994 Cophasing studies for an imaging multiaperture optical space interferometer

Didier Morancais, Bertrand Calvel, Philippe Roussel

Proceedings Volume 2209, Space Optics 1994: Earth Observation and Astronomy; (1994) https://doi.org/10.1117/12.185274
Event: Space Optics '94, 1994, Garmisch, Germany

Abstract

A cophasing system architecture has been derived for an imaging multi-aperture optical space interferometer. This system is based on cophasing on a guide star. Breadboarding and testing of the main part of the system, with emphasis on the critical items (delay line, cophasing interferometer, Optical Path Difference (OPD retrieval methods), has provided an evaluation of the expected performance. This paper describes the reference interferometry mission used for the study, the overall OPD stabilization concept, the cophasing system and associated OPD restitution algorithms, and the first test results.

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Didier Morancais, Bertrand Calvel, and Philippe Roussel "Cophasing studies for an imaging multiaperture optical space interferometer", Proc. SPIE 2209, Space Optics 1994: Earth Observation and Astronomy, (13 September 1994); https://doi.org/10.1117/12.185274

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KEYWORDS

Stars

Interferometers

Telescopes

Astronomical imaging

Sensors

Image filtering

Electronic filtering

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