一种分布式、光传输波控系统设计

发布时间：2018-11-01 19:24

【摘要】：本论文以大型二维相控阵雷达为背景,以一个包含了6336(72*88)个有源单元的天线阵面为研究对象,该天线阵面包含TR组件数量多,属于典型的大型相控阵雷达。该天线阵面对波束控制系统控制性能要求高,传统集中式波束控制系统设计方法已不能满足其控制需求,本文提出了一种分布式、高速光纤传输波束控制系统设计方法,并对系统中各电路单元硬件设计及关键软件流程进行了详细设计,最后通过对系统及系统内各模块的性能分析,得出分布式、光传输波束控制系统设计具有良好的实际效果。本文首先介绍了国内外相控阵雷达发展历程及发展现状、波束控制系统在相控阵雷达中的主要功能、发展现状及当前主流设计思想,分布式设计方法是当前大型二维相控阵雷达波束控制系统的主流设计方法。介绍了波束控制系统的基本工作原理与光纤传输的基本原理,分析了将光纤传输应用于波束控制系统设计中的各项优点。本文以一个具体的雷达波束控制系统设计为研究对象,通过对系统指标的详细分析,确定了设计思路,既采用分布式与光传输的设计方案。根据天线阵面辐射单元数量及其物理排布特点对子阵划分、波束控制系统级数确定、波束控制系统各级电路单元数量及系统内各电路模块硬件设计及关键软件流程进行了详细设计,并根据调试、测试情况提出了进一步优化波控系统性能的设计方法,为下一步的工作提供了思路。通过对系统及系统内各模块的实际工作性能测试得出结论,分布式、光传输波束控制系统较大幅度的提升了波束控制系统的系统响应时间,在时序信号抖动性、同步性方面较传统的波束控制系统设计方式有明显优势,同时该系统具有较好的扩展性,在天线阵面组件数量规模扩大时,进行积木式扩展便可实现更大规模的天线阵面控制,是一种较为先进的大型二维相控阵雷达波束控制系统。
[Abstract]:In this paper, a large two-dimensional phased array radar is taken as the background, and a antenna array surface containing 6336 (72 / 88) active elements is taken as the research object. The bread of the antenna array contains a large number of TR modules and belongs to a typical large phased array radar. The control performance of the antenna array facing beam control system is high, and the traditional centralized beam control system design method can no longer meet its control requirements. In this paper, a distributed, high speed fiber optic transmission beam control system design method is proposed. The hardware design and key software flow of each circuit unit in the system are designed in detail. Finally, by analyzing the performance of the system and the modules in the system, it is concluded that the design of the distributed beam control system for optical transmission has a good practical effect. This paper first introduces the development history and present situation of phased array radar at home and abroad, the main functions of beam control system in phased array radar, the development status and the current mainstream design idea. Distributed design method is the main design method of large-scale two-dimensional phased array radar beam control system. The basic working principle of beam control system and the basic principle of optical fiber transmission are introduced. The advantages of applying optical fiber transmission to the design of beam control system are analyzed. This paper takes a specific radar beam control system design as the research object, through the detailed analysis to the system index, has determined the design idea, namely uses the distributed and the optical transmission design plan. The subarray is divided according to the number of radiation units on the surface of the antenna array and its physical layout characteristics, and the series of the beam control system is determined. The number of circuit units at all levels of the beam control system and the hardware design and key software flow of each circuit module in the system are designed in detail. According to the debugging and testing conditions, the design method of further optimizing the performance of the wave control system is put forward. It provides some ideas for the next step. By testing the performance of the system and its modules, it is concluded that the distributed, optical transmission beam control system can greatly improve the response time of the beam control system and the jitter of the timing signal. Compared with the traditional beam control system, the synchronism has obvious advantages, and the system has better expansibility. When the number of antenna array components is enlarged, the building block expansion can realize the large-scale antenna array surface control. It is an advanced beam control system for large-scale two-dimensional phased array radar.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN958.92

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