Commissioning progress of the FAST
Commissioning progress of the FAST
复制标题
FAST调试进展
DOI：
10.1007/s11433-018-9376-1
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发表时间：
2019-05-01
影响因子：
6.4
通讯作者：
Li, Di
中科院分区：
文献类型：
--
作者：
Jiang, Peng;Yue, YouLing;Li, Di
500米口径球面射电望远镜（FAST）于2016年9月25日完成主体结构安装，随后进入调试阶段。本文旨在介绍FAST在过去两年的调试进展。为提高运行可靠性，确保有效观测时间，FAST为主动反射系统配备了实时信息系统，为馈源支撑系统配备了分级调试方案，最终实现了两个系统的安全运行。为满足高性能指标要求，在对主动反射系统和馈源支撑系统实施有效控制的基础上，建立了高精度的测量系统。自FAST投入使用以来，主要使用低频超宽带接收机和19波束1.05-1.45 GHz接收机。对望远镜效率、指向精度和系统噪声温度进行了全面测试，最终达到了望远镜的验收指标。FAST一直在进行国家验收准备工作，并开始寻找合适的人选。未来，它仍将努力提高其能力，扩大其应用前景。
The Five-hundred-meter Aperture Spherical radio Telescope (FAST) was completed with its main structure installed on September 25, 2016, after which it entered the commissioning phase. This paper aims to introduce the commissioning progress of the FAST over the past two years. To improve its operational reliability and ensure effective observation time, FAST has been equipped with a real-time information system for the active reflector system and hierarchical commissioning scheme for the feed support system, which ultimately achieves safe operation of the two systems. For meeting the high-performance indices, a high-precision measurement system was set up based on the effective control methods that were implemented for the active reflector system and feed support system. Since the commissioning of the FAST, a low-frequency ultra-wideband receiver and 19-beam 1.05-1.45 GHz receiver have been mainly used. Telescope efficiency, pointing accuracy, and system noise temperature were completely tested and ultimately achieved the acceptance indices of the telescope. The FAST has been in the process of national acceptance preparations and has begun to search for pulsars. In the future, it will still strive to improve its capabilities and expand its application prospects.