Ground-based array of aperture synthesis

Konstantin N. Sviridov; Nicolay D. Belkin; Galina Yu. Sviridova

doi:10.1117/12.317204

24 July 1998 Ground-based array of aperture synthesis

Konstantin N. Sviridov, Nicolay D. Belkin, Galina Yu. Sviridova

Proceedings Volume 3350, Astronomical Interferometry; (1998) https://doi.org/10.1117/12.317204
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

Abstract

On the basis of comparative analysis of the existing concepts of aperture synthesis optical system construction, that is: segmented telescope; multimirror telescope and an array of individual telescopes, it is shown that today, due to technological, exploitation and financial problems, only an array of individual telescopes with bases up to 100m and higher, is usable for the effective observation of the far space objects. As a result, in consideration of the theoretical fundamentals of the aperture synthesis, an array is proposed, including N-movable telescopes with diameter D acquiring light radiation from a controlled object in the process of a spatially-temporal aperture synthesis, and one fixed array element, combining subbeams from moving elements and forming a synthesized image. The analytical expressions are derived for the tolerances for coherent interaction of array elements in pointing, phasing and figurization of subapertures and subbeams in the process of image forming, and the qualitative estimations are given.

Citation Download Citation

Konstantin N. Sviridov, Nicolay D. Belkin, and Galina Yu. Sviridova "Ground-based array of aperture synthesis", Proc. SPIE 3350, Astronomical Interferometry, (24 July 1998); https://doi.org/10.1117/12.317204

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