基于扩展目标的雷达目标回波模拟及验证  

Simulation and Verification of Radar Target Echo Based on Extended Target

作　　者：陈旭 王金锋 朱平 CHEN Xu;WANG Jinfeng;ZHU Ping(The 723 Institute of CSSC,Yangzhou 225101,China)

机构地区：[1]中国船舶集团有限公司第七二三研究所,江苏扬州225101

出　　处：《舰船电子对抗》2023年第5期55-59,87,共6页Shipboard Electronic Countermeasure

摘　　要：针对高分辨雷达调试、试验的需求,在对扩展目标模型以及实现方法研究的基础上,推导得到了基于目标布点方式的扩展目标计算公式。然后基于数字储频原理,采用现场可编程门阵列(FPGA)和数字信号处理器(DSP)作为核心处理架构研制了一套雷达目标回波模拟系统,并采用逆合成孔径雷达(ISAR)成像的处理方法,对模拟的目标回波信号进行测试验证。测试结果表明模拟的目标回波能够满足高分辨雷达使用要求,性能优于常规的点目标模拟方法。According to the requirements of high resolution radar debugging and test,based on the research on extended target model and implementation method,the extended target calculation formula based on target distribution is derived.Then based on the principle of digital frequency storage,a set of radar target echo simulation system is developed by using field programmable gate array(FPGA)and digital signal processor(DSP)as the core processing architecture,and the simulated target echo signals are tested and verified by using the processing method of inverse synthetic aperture radar(ISAR)imaging.The test results show that the simulated target echo can meet the operating requirements of high-resolution radar,and its performance is better than the conventional point target simulation method.

关 键 词：扩展目标 数字储频 目标模拟系统 逆合成孔径雷达成像 

分 类 号：TN955.2[电子电信—信号与信息处理]