功率合成全固态脉冲源外场目标探测试验

 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。

Outdoor target detection of solid state pulser based on power synthesis

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 m~2,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.