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文章介绍了实现飞行器天线波束的电子控制及扫描的重要意义,和一种适应于空间飞行器的轻小型相控阵天线系统实验模型的结构和功能。着重介绍如何用专用的波束控制计算器来实现对天线波束的电子控制和扫描。文章给出了天线波束电子控制的原理,提出了波束控制计算器所要完成的基本任务。进而详细介绍线阵波束控制计算器的设计。给出了所设计的波控器的详细框图及其工作原理。特别讨论了其中主要电路的功能,以及如何设计、实现这些电路。文章最后给出了波束定向控制和自动步进扫描的实验结果。同时对天线波束指向的控制速度给出了定量的结果,表明所设计的波控器具有高速控制性能。本文所给出的波束控制计算器可以按照事先给定的要求对天线波束作固定的程序控制,也可以接受外部指令作实时方位控制。同时还能以几种不同的速率作自动步进扫描。
The article introduces the importance of realizing the electronic control and scanning of the aircraft antenna beam and the structure and function of an experimental model of the light and small phased array antenna system adapted to the space vehicle. It focuses on how to realize the electronic control and scanning of the antenna beam with a dedicated beam control calculator. The article gives the principle of antenna beam electronic control, put forward the beam control calculator to complete the basic tasks. Then detailed description of the linear beam control calculator design. The detailed block diagram of the designed controller and its working principle are given. In particular, it discusses the main circuit functions and how to design and implement these circuits. Finally, the experimental results of beam steering control and automatic step scanning are given. At the same time, the quantitative results are given for the control speed of antenna beam pointing, which shows that the designed controller has high speed control performance. The beam control calculator given in this paper can make fixed program control of the antenna beam according to the pre-specified requirements, and can also accept external commands for real-time azimuth control. At the same time also at several different rates for automatic step scan.