Aperture Synthesis In Space: Computer Fringe Blocking

Farrokh Vakili; Laurent Koechlin

doi:10.1117/12.961512

26 September 1989 Aperture Synthesis In Space: Computer Fringe Blocking

Farrokh Vakili, Laurent Koechlin

Proceedings Volume 1130, New Technologies for Astronomy; (1989) https://doi.org/10.1117/12.961512
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

Abstract

We discuss ways to remap the exit pupils of a ring-shaped array of optical telescopes, to obtain simultaneous spectral and angular informations about the object under study. Such an array, operated as a long baseline interferometer in space, would attain very large li-miting magnitudes in absence of atmospheric turbulence, and open a new imagimg window down to 100 nm wavelengths. We consider this instrument in typical photon-noisy situations, and propose a spatio-temporal technique to integrate the flying fringe pattern recorded by a time-tagged detector at its focal plane. In principle, our method should relaxe the inter-nal stiffness of the array to a few millimeters, making floppy structures or free-flying satellites adequate for very long baseline interferometry in space.

Citation Download Citation

Farrokh Vakili and Laurent Koechlin "Aperture Synthesis In Space: Computer Fringe Blocking", Proc. SPIE 1130, New Technologies for Astronomy, (26 September 1989); https://doi.org/10.1117/12.961512

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