Effects of Misalignment Errors on the Optical Transfer Functions of Synthetic Aperture Telescopes

Details Effects of Misalignment Errors on the Optical Transfer Functions of Synthetic Aperture Telescopes Effects of Misalignment Errors on the Optical Transfer Functions of Synthetic Aperture Telescopes

Nov 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apopt..43.5926f&link_type=abstract

Applied Optics IP, vol. 43, Issue 32, pp.5926-5932

Physics

Optics

1

Scientific paper

A segmented or diluted aperture optical system will undergo phase errors as a result of errors in the positioning of the segments. The errors associated with a segmented primary mirror limit the image quality obtainable with synthetic aperture telescopes. Here we study the effects of segmentation errors on image quality, considering both the phase angle and the amplitude of the optical transfer function (OTF). We show that, in these kinds of telescope, phasing and alignment errors among segments reduce the amplitude and distort the phase angle of the OTF.

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