功率合成全固态脉冲源外场目标探测试验  

Outdoor target detection of solid state pulser based on power synthesis

作　　者：张伟军[1] 梁步阁[1] 张光甫[1] 张伟[1] 袁乃昌[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院微波中心,长沙410073

出　　处：《强激光与粒子束》2006年第10期1757-1760,共4页High Power Laser and Particle Beams

基　　金：国家863计划项目资助课题

摘　　要：为给冲击雷达提供理想的发射源,利用功率合成技术,将多个数kV,ns级的固态脉冲源合成为MW量级的高功率脉冲源;为研究冲击雷达目标特性,设计了一套由功率合成的全固态脉冲发射机、超宽带平面TEM喇叭发射天线阵、超宽带开槽接收天线阵、正交解调采样接收机、主控计算机组成的冲击体制雷达目标探测系统;采用增大收发天线、目标与地面的距离以及在目标回波中加时间窗的方法,成功探测到2 km处在光学区RCS为0.01 m2的目标;采用16个发射单元的目标回波信号比采用8个发射单元时明显,这表明功率合成在采用较多发射单元时效果更为明显。The ultra-wide band（UWB） impulse radar system is developed and studied, which includes a solid state pulser based on power synthesis technology, an UWB planar TEM horn antenna array for transmitting, an UWB slot array for receiving, a quadrature demodulation receiver and a computer. By heightening the distances between the ground and the target, and the transmitting and receiving arrays, and adding the time window, the radar system can detect the target which is 2 km away and the RCS of optics area is 0. 01 m2 , which shows that the system is feasible. The echo signal is stronger when 16 transmitting cells are adopted than that when 8 transmitting cells are adopted, which shows that the technology of power synthesis is effective.

关 键 词：功率合成 全固态脉冲源 雷达目标探测系统 雷达散射截面 

分 类 号：TN78[电子电信—电路与系统]