一个跨世纪工程：新一代射电望远镜计划

在国际无线电科联于１９９３年９月在日本京都召开的第２４届大会上，射电在文专门委员会作出了成立大射电望远镜工作组的决议，以推动和促进跨世纪的新一代射电望远镜工程的研究和准备，这是一项广泛国际合作的巨大科学计划，ＮＧＲＴ的主要性能将比现有的，以及计划建造的最先进的射电望远镜还优一到两个数量级。本文拟介绍该计划的历史渊源和技术梗概，希望有助于我国天文界积极参与该项目的国际合作。

A Project on the Threshold of the 21 Century:Next Generation of Radio Telescope

During the 24th General Assembly of the International Union of Radio Science (URSI) held in Kyoto, Japan, a resolution to form the Large Telescope Working Group (LTWG) was made by the Comm.J (radio astronomy) according to a general opinion of radio astronomers in the world expressed in last several years. The working group will work for three years in purpose of promoting and reinforcing the studies and preparations of a cross-century project-New Generation of Radio Telescope (NGRT). The project will be put into a wide scale of international cooperation. The major performances of the NGRT will be one to two magnitudes better than any current and planned radio telescopes. The historical origins of the concept of the NGRT and the essential technical features of the system are reviewed and outlined in this paper. It would be helpful for Chinese radio astronomers to join in the cooperation and studies of the project actively.