微波超视距无源探测关键技术研究  

A Study on Key Technology of Microwave Passive OTHR

作　　者：杨广平[1] 

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《现代雷达》2010年第6期1-4,共4页Modern Radar

摘　　要：微波超视距无源探测系统具有探测威力远、信号适应能力强、系统简单可靠等优点,近年来受到各国的重视,得到了较快的发展。文中介绍了微波超视距无源探测系统国外的发展情况、对流层散射传播信号实现超视距探测的工作原理、系统组成、性能,重点分析了对流层散射损耗的计算方法,并给出了探测距离与辐射源功率和频率的关系曲线,最后分析和研究了系统的关键技术。The microwave passive over-the-horizontal radar has many advantages of long detection range, strong signal adaptability, simpleness and credibility. In the near years the system gets much regard of every country and has high speed development. In this paper, the development of the system in the overseas of the system is introduced firstly, the working principle of over-the-horizontal system by tropospheric scatter propagation, the system composition and capability are also introduced; and then, the calculate methods to tropospheric scatter loss are analyzed mainly and the curves connecting range and radiant power and frequency are given,at last, the key technologyes are analyzed and researched.

关 键 词：微波超视距 无源探测 对流层散射 

分 类 号：TN958.93[电子电信—信号与信息处理]