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全可动射电望远镜是一个包含主动面促动器机构、天线高功率驱动分系统、高灵敏接收终端、数据传输及控制分系统在内的复杂系统.系统内强弱电分系统的工作电平差异悬殊,内部不但存在相互的电磁干扰,同时系统工作时所产生的电磁发射信号及场站环境的各类电磁信号,都会对需要接收的微弱射电信号产生干扰,致使射电望远镜的电磁兼容性已成为研制及使用的关键技术.本文综述了国内外射电天文望远镜电磁兼容技术的研究进展,并从系统工程角度,对射电望远镜系统的电磁干扰特征进行了研究,确定了关键的控制要素,建立了干扰耦合矩阵,提出了基于电磁拓扑理论的射电望远镜系统电磁兼容的建模方法,为研究射电天文望远镜的电磁兼容技术奠定了基础.
The all-movable radio telescope is a complex system including active surface actuator mechanism, antenna high-power driven subsystem, highly sensitive receiving terminal, data transmission and control subsystem, etc. The working level Differences between the internal, not only internal mutual electromagnetic interference, while the system is working at the electromagnetic emission signals generated by the site environment and all kinds of electromagnetic signals, will receive the weak radio signal interference, resulting in radio telescope electromagnetic compatibility has And become the key technology of development and use.This paper reviews the research progress of electromagnetic compatibility of radio telescope at home and abroad, and from the system engineering point of view, studies the electromagnetic interference characteristics of radio telescope system, determines the key control elements, establishes Interference coupling matrix, the electromagnetic compatibility modeling method of radio telescope system based on electromagnetic topology theory is proposed, which lays the foundation for studying the electromagnetic compatibility technology of radio telescope.