主瓣多假目标干扰收发联合抑制方法  

Joint suppression method of mainlobe multiple false targets jamming transceriver

作　　者：张洋[1,2] 位寅生 于雷[1,2] ZHANG Yang;WEI Yinsheng;YU Lei(School of Electronics and Information Engineering,Harbin Institute of Technology,Harbin 150001,China;Key Laboratory of Marine Environmental Monitoring and Information Processing,Ministry of Industry and Information Technology,Harbin 150001,China)

机构地区：[1]哈尔滨工业大学电子信息工程学院,黑龙江哈尔滨150001 [2]工业与信息化部对海监测与信息处理重点实验室,黑龙江哈尔滨150001

出　　处：《系统工程与电子技术》2021年第6期1486-1496,共11页Systems Engineering and Electronics

基　　金：国家自然科学基金企业创新发展联合基金(U20B2041)资助课题。

摘　　要：从现代电子战雷达抗干扰迫切需求出发,针对主瓣多假目标干扰的对抗难题,提出一种空时相位编码多输入多输出(space time phase coded multiple input multiple output,STPC-MIMO)信号与失配滤波器联合设计方法。该方法通过发射端STPC-MIMO信号设计可自适应调整回波中干扰能量的空域分布,实现真假目标的空域分离,进而结合接收端失配滤波器设计,在信噪比损失可控情况下实现主瓣内多假目标有效抑制。此外,由于该收发联合优化方法需要对干扰进行认知,因此进一步给出了基于STPC-MIMO信号回波的假目标参数获取方法,形成波形设计-干扰认知闭环雷达探测系统。最后通过仿真实验验证了所提方法的有效性。Aiming at the mainlobe multiple false targets jamming confrontation problem,a space time phase coded multiple input multiple output(STPC-MIMO)signal and mismatch filter joint design method is proposed from the urgent need for radar anti-jamming in modern electronic warfare.This method adaptively adjust the spatial distribution of the jamming energy in the echo through the STPC-MIMO signal design to achieve the spatial separation of the true and false targets,and then combined with the mismatch filter design to achieve effective suppression of mainlobe multiple false targets under the condition of controllable signal noise to ratio loss.In addition,because the joint optimization method of transceriver needs to recognize the interference,the method of obtaining false target parameters based on STPC-MIMO signal echo is further proposed to form a waveform design jamming cognitive closed-loop radar detection system.Finally,simulation experiments verify the effectiveness of the proposed method.

关 键 词：抗干扰 主瓣多假目标干扰 多输入多输出雷达 空时相位编码 失配滤波器 

分 类 号：TN974[电子电信—信号与信息处理]