法国高层大气所空间综合孔径项目研究进展

Progress in the Studies on the Space Telescope Mission of Aperture Synthesis in the Service d'aéronomie of France

概述了法国高层大气所空间综合孔径项目背景、科学目标以及有效载荷,介绍了该项目演示系统的基本工作原理,探讨了该演示系统的望远子系统、指向子系统、共相子系统和成像子系统,并分别给出了该演示系统在非共相控制和共相控制情况下对半导体激光器和白光点光源的成像结果,实验结果表明演示系统不同独立望远镜之间已经基本实现了共相成像。最后对该演示系统进行了总结,并指出该系统可以进一步优化之处。该演示系统对我国综合孔径成像实验研究具有一定的借鉴意义。

This paper describes the space telescope mission of aperture synthesis in the Service d＇ Aeronomie of France which began in 1989, including its background, scientific objectives, and payloads. The breadboard for the SOLARNET is illustrated in detail and some preliminary images of a laser diode and a white-light point source are presented. These images show that the entire breadboard can achieve a high phase-control precision （ small piston errors）. Finally, we give some suggestions for improvement, such as adjustments of pupil positions and proper tracking of the sun （as on the declination axis an uncompensated drift affects the system） to improve fine pointing control. These explorations of the aperture synthesis experiment of the Service d＇ Aeronomie should provide useful references to further research on such a subject in China