FAST在深空探测中的应用前景

FAST（Five hundred meters Aperture Spherical Telescope)拟利用贵州省的喀斯特洼地，建立世界上最大的500米口径的球面射电望远镜。主动反射面新概念的提出，实现了望远镜的宽频带和全偏振能力；馈源及支撑系统简化的方案，使FAST对天体和航天器的跟踪范围得到很大的补充。分析预研中的FAST的测控功能，并论证其在未来深空网（DSN）中的重要作用和地位及开展国际合作的可能性。

THE PROSPECT OF FAST IN DEEP SPACE EXPLORATION

A Five hundred meters Aperture Spherical Telescope (FAST), the largest radio telescope in the world, has been proposed to be built in a karst depression in Guizhou Province. It puts forword a new concept of active main reflector, which enables the realization of both wide bandwidth and full polarization capability. The simplification of feed support system expands the coverage of tracking object and space flight. Fairly good performances of the FAST in the telemetering and communication systems as well as its status in the global Deep Space Network (DSN) are briefly described, followed by presenting preliminary consideration for international cooperation in the future.