外辐射源雷达系统具有隐蔽性好、反隐身能力及抗干扰能力强、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。影响外辐射源雷达性能的主要因素有直达波信号对消、多径信号对消、同频干扰的消除等,在系统设计中应进行针对性设计。文中以基于调频广播信号的外辐射源雷达系统为例,介绍了外辐射源雷达系统的原理、组成及性能,重点分析和研究了外辐射源雷达的关键技术。

The passive radar based on external illuminator has many advantages,such as good invisibility,anti-stealth,anti-jamming capability,and it is simple and reliable.The factor to affect the performance of the passive radar is as following:direct-path-wave,multi-path effect,co-channel interference,etc.,and in the process of designing the passive radar system,these factors must be mainly considered.Recently,the passive radar has attracted more and more attention,so the technology of passive radar has developed rapidly.In this paper,firstly,the principle and composition of the passive radar are introduced,and then the key technology of the passive radar is discussed and analyzed.

TN958