超近程PD雷达复杂目标回波合成方法研究  

Research on Super Close-in PD Radar's Complex Target Echo Synthesis

作　　者：郑哲[1] 姜洁[1] 吴嗣亮[1] 

机构地区：[1]北京理工大学信息与电子学院,北京100081

出　　处：《电子学报》2011年第A03期43-46,共4页Acta Electronica Sinica

摘　　要：针对超近程PD雷达复杂目标回波合成方法进行了研究,提出一种"视频合成结合空间合成"的方法.该方法将交会过程中雷达和目标所处的空间按等空间角划分为多个空域,按预设交会姿态,动态分配目标各强散射点至相应空域,将出现在同一空域的目标各强散射点的回波先进行视频合成后,经单边带调制并上变频至雷达发射频率,形成对应空域模拟回波信号,而后经阵列天线对各空域回波信号进行空间合成,产生回波信号至雷达接收机天线.This paper conducted research on the super close-in PD radar＇s complex target echo synthesis technology,and put forth a method of ＂Video synthesis combining space synthesis＂.The method divided the work space of radar and complex target into multi-small airspace based on equal space angle during the process of simulation.In accordance with the principle of scatter-points distribution,and made dynamic distribution of target scatter-points to the airspace on the basis of known cross posture.During simulation,target scatter-points＇ echo of the same airspace will carry out video synthesis,then are sent into radar by I/Q modulation and up-conversion.In the mean time,all airspaces＇ echo will undergo space synthesis again through array antenna,echo signal will finally be generated to radar receiver antenna.

关 键 词：超近程脉冲多普勒雷达 视频合成 空间合成 阵列天线 散射点 模拟器 

分 类 号：TN955.2[电子电信—信号与信息处理]