一种相控阵雷达目标回波信号的实时模拟方法  

A real-time simulation method of target echo signals for phased array radar

作　　者：姜小祥[1] 刘溶[1] 沈磊[1] 翟刚毅[1] 

机构地区：[1]中国船舶重工集团公司第七二四研究所,南京211153

出　　处：《雷达与对抗》2016年第4期22-24,52,共4页Radar & ECM

摘　　要：论述了相控阵雷达目标回波信号的一种实时模拟方法。介绍了雷达回波和差波束模拟的原理以及基于FPGA芯片的实现。该方法基于线性调频脉冲信号,根据波束指向和目标实际位置的差值实时产生和差通道数据,为雷达后端的信号处理提供零中频I、Q信号,在雷达前端设备不具备的条件下对系统后级进行分析调试和检验。A real-time simulation method of the target echo signals for the phased array radar is discussed. The principle of the sum and difference beam simulation of radar echoes and the implementation based on the FPGA are introduced. The data of the sum and difference channels are generated in real-time according to the difference between the beam pointing and the actual position of the target based on the chirp pulse signals,and the back-end equipment of the radar system is provided with zero IF I and Q signals for signal processing. The radar system can be analyzed,debugged and tested without the front-end equipment.

关 键 词：相控阵雷达 目标回波 回波模拟 和差波束 

分 类 号：TN958.92[电子电信—信号与信息处理]