Tolerances of aperture synthesis in the ground-based array of telescopes

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

doi:10.1117/12.390245

5 July 2000 Tolerances of aperture synthesis in the ground-based array of telescopes

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

Proceedings Volume 4006, Interferometry in Optical Astronomy; (2000) https://doi.org/10.1117/12.390245
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

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 100 m 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 quantitative estimation are given.

Citation Download Citation

Konstantin N. Sviridov, Nicolay D. Belkin, and Galina Yu. Sviridova "Tolerances of aperture synthesis in the ground-based array of telescopes", Proc. SPIE 4006, Interferometry in Optical Astronomy, (5 July 2000); https://doi.org/10.1117/12.390245

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