基于Relax谱估计的波束内多运动目标分辨  

Multiple Moving Targets Resolving Based on Relax Spectrum Estimation

作　　者：苏晋[1] 陈付彬[1] 张军[1] 付强[1] 

机构地区：[1]国防科技大学电子科学工程学院实验室,湖南长沙410073

出　　处：《系统工程与电子技术》2003年第11期1313-1317,共5页Systems Engineering and Electronics

基　　金：十五"国防科技预研基金;国防科技重点实验室基金资助课题

摘　　要：弹载雷达对波束内的多目标进行准确分辨是至关重要的。鉴于多普勒雷达对速度的分辨能力和单脉冲雷达的测角能力,提出了一种对波束内多运动目标进行分辨的算法。导弹加速度对目标回波多普勒频谱展宽起主要作用,据此提出了去斜率后进行超分辨谱估计的单/多目标鉴别方法;然后对超分辨后的参数化的多普勒谱进行单脉冲测角,从而得到多目标在波束内的二维分布。仿真结果证明了该算法的有效性。It's vital for a missileborne radar to discriminate multiple targets in the same antenna beam. Using the velocity resolution ability of a Doppler radar and the anglemeasuring ability of a pulsed radar and a discrimination method of multiple targets in the same antenna beam is proposed. Missile acceleration dominates echo Doppler spectrum broadening, hereby a single/multiple target discrimination method using the superresolution spectrum estimation after signal dechirping is put forward. Then the estimated parameterized Doppler signals are used to measure the angle of each suppositional target. The measured angles represent an inbeam twodimensional distribution of the targets. The simulation result shows that the algorithm is valid.\;

关 键 词：多目标分辨 多普勒雷达 单脉冲 

分 类 号：TN957[电子电信—信号与信息处理]