利用外部辐射源探测与跟踪雷达系统，由于自身不发射电磁波，因而不容易被敌方侦察系统所发现，可免受反辐射导弹的攻击，具有很强的系统生存能力，这种系统正在成为防空情报系统的一种重要探测手段，文中介绍了基于调频广播信号的雷达目标探测与跟踪系统特性和研究实例。结合实际的雷达试验系统，描述并分析了调频广播信号的波形和频谱特点、雷达布站、雷达系统探测目标距离速度模糊图、恒虚警处理、目标航迹图，分析了雷达关键技术和本雷达系统的探测威力。

A radar system which uses signals from an opportunity transmitter to detect and track radar targets instead of transmitting signal itself can not be discovered by the reconnaissance receiver thus, avoiding the attack of anti-radiation missile. So has very powerful survivability and will be important detection tool for future air defense information systems. In this paper the characteristics and studied examples of passive radar system based on frequency modulated broadcast signal (FMBS) are described. The spectrum of the FMBS, radar deployment, range and velocity ambiguity, constant false alarm processing, flight path map, and detection range are described and analyzed.

TN957