中国空间科学技术

中国空间科学技术 ›› 2025, Vol. 45 ›› Issue (2): 88-93.doi: 10.16708/j.cnki.1000-758X.2025.0026

• 论文 • 上一篇    下一篇

月基平方公里阵射电望远镜天线方案设想

刘佳1，万继响1，*，吴春邦1，王浩1，张乔杉1，郭诠2，张鹏飞3，姜明3   

  1. 1.空间电子信息技术研究院，西安710100
    2.中国科学院上海天文台，上海200030
    3.西安电子科技大学，西安 710071
  • 收稿日期:2023-12-04 修回日期:2023-12-30 录用日期:2024-12-12 发布日期:2025-03-13 出版日期:2025-04-01

Design of lunar based square kilometer array radio telescope antenna

LIU Jia1， WAN Jixiang1，*， WU Chunbang1， WANG Hao1， ZHANG Qiaoshan1， GUO Quan2， ZHANG Pengfei3， JIANG Ming3   

  1. 1．Academy of Space Information Systems， Xi‘’an 710100，  China
    2．Shanghai Astronomy Observatory CAS， Shanghai 200030， China
    3．Xidian University， Xi‘’an 710071， China
  • Received:2023-12-04 Revision received:2023-12-30 Accepted:2024-12-12 Online:2025-03-13 Published:2025-04-01

PDF (PC)

174

摘要： 由于地球电离层的吸收或者反射效应、以及地球表面极其拥挤的低频射电干扰源的影响，使得地面天文台对超长波谱段（0.1～30MHz）的射电信号探测极其困难，而已发射的轨道探测器又无法满足高分辨率、高灵敏度的观测需求。提出了一种月基平方公里阵射电望远镜天线方案设想，分别从科学目标分析、技术指标论证、总体技术方案，以及工程实施方案设想等几个方面进行详细的论述，并给出相应的技术路线及实现途径，旨在为中国未来空间超长波射电天文观测领域发展提供有力的技术支持。

Abstract: Due to strong ionospheric distortions and Radio Frequency Interference (RFI)， radio astronomy observation at frequencies below 30MHz is not feasible on earth. And the launched orbital detectors cannot meet the needs of high resolution and sensitivity observation. A lunar based square kilometers radio telescope antenna array is proposed in this paper. And the aspects of scientific objectives analysis， technical index demonstration， and project implementation scheme are detailed discussed. The corresponding technical route and realization way are given too. All of these are aiming at providing strong technical support for the development of space ultra-long wave radio astronomy observation in the future.

Key words: ultra-long wave, lunar-based, antenna array, sensitivity, resolution