Imaging strategies for a spaceborne interferometer

Details Imaging strategies for a spaceborne interferometer Imaging strategies for a spaceborne interferometer

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987esasp.273...23r&link_type=abstract

In ESA, ESA Workshop on Optical Interferometry in Space p 23-29 (SEE N88-10613 01-74)

Astronomy and Astrophysics

Astronomy

2

Image Reconstruction, Interferometry, Spaceborne Astronomy, Angular Resolution, Image Resolution, Phased Arrays, Reflecting Telescopes, Spaceborne Telescopes

Scientific paper

Two strategies for spaceborne interferometry are suggested. The first is a large filled aperture consisting of a mosaic of light-weight mirrors. Internal referencing is used to coalign and approximately cophase the array. Diffraction-limited imaging is achieved by means of interferometric techniques such as roll deconvolution or pupil-plane interferometry. The second is a diluted array of diffraction-limited telescopes. Such an array can be exactly coaligned and cophased using internal and/or external reference. In case of either strategy, pointing accuracy and mechanical vibrations limit the system performances.

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