摘要
该文从外辐射源雷达探测机理和特点出发,论述了基于低频段(HF/VHF/UHF)数字广播(含电视)信号外辐射源雷达(Digital Broadcasting-based Passive Radar,DBPR)的发展现状和趋势。结合数字广播电视的电波覆盖情况和技术特点,首先从实验系统、技术参数、比测实验等方面论述了国外(尤其是欧洲)的研究现状,接着介绍了国内在不同频段新体制外辐射源雷达理论与实验研究上的最新进展,并对DBPR的研究热点和关键技术进行了评述,包括波形特性及其修正、参考信号获取、多径杂波抑制、目标检测跟踪与融合、实时信号处理等方面;最后对该外辐射源雷达的发展趋势和应用前景进行了展望。
Starting from the detection principle and characteristics of passive radar, this paper describes the development of passive radar based on the low frequency band （HF/VHF/UHF） digital broadcasting and TV signal. Based on the radio coverage ratio and technical features of digital broadcasting and TV signals, the research status in abroad, especially in Europe, is introduced at first, on experimental systems, technical parameters, and comparative experiments. Then the latest development of passive radars, in different frequency bands in China, both theory and experimental study are presented. Followed is the commentary on the key techniques and problems of Digital Broadcasting-based Passive Radar （DBPR）, including the waveform＇s properties and its modification, reference signal extraction, multipath clutter rejection, target detection, tracking, and fusion as well as real-time signal processing. Finally, the prospects of development and application of this kind of passive radar are discussed.
基金
国家自然科学基金(60971101,41074116,41106156)
湖北杰出青年基金(2009CDA016)资助课题
关键词
外辐射源雷达
HF雷达
VHF雷达
UHF雷达
空中监视雷达
Passive radar
High Frequency （HF） radar
Very High Frequency （VHF） radar
Ultra High Frequency（UHF） radar
Air surveillance radar
作者简介
通信作者：万显荣xrwan@whu．edu．cn（1975-），男，博士，武汉大学电子信息学院教授，博士生导师，中国电子学会高级会员。研究方向为无源雷达、超视距雷达、新体制雷达系统与雷达信号处理等。主持和参加国家级科研项目10余项，发表SCI／EI检索论文40余篇。E-mail：xrwan@wbu．ed.cn
