Ground-based array of aperture synthesis

被引:0
|
作者
Sviridov, KN [1 ]
Belkin, ND [1 ]
Sviridova, GY [1 ]
机构
[1] Intellect Co Ltd, State Enterprise SPA Astrophys, Moscow 123424, Russia
来源
关键词
tolerances for coherent pointing; phasing and figurization;
D O I
10.1117/12.317204
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
On the basis of comparative analysis of the existing concepts of aperature 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 aperature 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 aperature 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 estimations are given.
引用
收藏
页码:275 / 281
页数:7
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