机载相控阵雷达合成宽带成像技术  

Synthetic Bandwidth Technique of Airborne Wideband Phased Array Radar

作　　者：胡学成[1] 刘爱芳[2] 刘中[1] 

机构地区：[1]南京理工大学电子工程系,南京210094 [2]南京电子技术研究所,南京210013

出　　处：《现代雷达》2008年第5期61-64,69,共5页Modern Radar

摘　　要：首先分析了机载相控阵雷达的信号回波特性和限制带宽的主要因素。结合调频步进信号进行宽带信号合成的原理,给出了详细的流程和算法。并对距离混叠抑制、重频选择、载频设计等关键问题给出了初步的解决方案。最后以X波段雷达系统为背景,对该方案进行了计算机仿真。仿真结果验证了该技术方案的可行性。The echo model of airborne phased array radar is analyzed and some primary influence factors of signal band- width limiting are analyzed first.After the introduction of basic theory of synthetic bandwidth method using stepped frequency sig- nals,a detailed algorithm for bandwidth synthesis is presented and some key techniques are proposed,including range overlap sup- pression,pulse repetition frequency selection and carrier frequency design,et al.Finally,the computer simulation for X band ex- perimental sys...

关 键 词：合成孔径雷达 调频步进 合成带宽 

分 类 号：TN958.92[电子电信—信号与信息处理]