【作者】 秦顺友； 李光； 张立军； 闫丰； 杜彪；

【Author】 QIN Shun-you;LI Guang;ZHANG Li-jun;YAN Feng;DU Biao;The Fifty Fourth Institute of CETC;

【机构】 中国电子科技集团公司第54研究所；

【摘要】 随着射电天文技术的发展,已研制出各种电尺寸很大的天线。大口径射电望远镜天线测量面临严峻挑战。本文简述了65米射电望远镜天线的基本特性。提出了利用卫星源和射电源相结合的方法,完成65米射电望远镜天线的电性能参数测量。阐述了第一旁瓣电平、不同仰角天线效率和地面噪声温度的测量原理和方法程序。给出了65米望远镜在低频段(L波段、S波段、C波段和X波段)的测量结果。测试结果均满足研制任务的技术要求。更多还原

【Abstract】 With development of radio astronomy,various large electrical size antennas have been developed.Measurement of large radio telescope antennas faces very challenge.In this paper,basic specifications of 65-meter radio telescope are described simply.Combination method of satellite source and radio source is present and electric parameter measurements of 65 m radio telescope antenna are accomplished.Measurement principle and test procedure of f first side-lobe level,different elevation antenna efficiency and ground noise temperature are described.Measurement results of 65-meter radio telescope are given at low frequency bands(L-band,S-band,Cband and X-band).Test results meet technique requirement of 65 m radio telescope development assignment.更多还原