摘要
给出了可选作无源探测系统辐射源的信号参数,分析了目标的双基地等效反射面积、接收机噪声系数、干扰电平的组成及其相应的处理方法、PCL系统有效带宽和积累增益的关系,并对PCL系统的灵敏度和覆盖范围进行了研究。以此为基础,重新推导了双基地无源探测的距离方程。最后通过仿真分析了PCL系统可以获得的性能及其关键确定因素。
Signal parameters of radiation source in passive detection system are presented. The equivalent echo area of a two-base target, the noise coefficient of receivers, the build-up and equivalent disposal method of interference voltage,the relation of effective band width in PLC systems and accumulation plus are analyzed. And the sensitive degree and overlay scope of PLC systems are researched. At last,simulation results show that the system may obtain better performance and confirm pivotal factors.
出处
《航天电子对抗》
2008年第5期29-31,49,共4页
Aerospace Electronic Warfare
关键词
无源相干定位
直达波对消
外辐射源
双基地雷达
passive coherent location（PCL）
direct-path cancellation
external radiation source
two-base radar
