窄带高分辨MIMO雷达图像特性分析

针对窄带MIMO（NMIMO）雷达的目标识别问题,着重对目标NMIMO图像特性进行了研究.首先对NMIMO雷达成像方法进行了简要介绍;然后结合4种典型运动方式,分别分析了目标NMIMO雷达图像上散射中心位置参数、散射中心幅度以及图像分辨力3种参数的分布特性,并给出了不同运动方式下目标NMIMO雷达图像3种参数的变化规律.最后,通过仿真目标的成像结果对相关结论进行了验证仿真.结果表明：相对散射中心幅度和图像分辨率,散射中心结构更不敏感于目标姿态的变化,验证了理论分析的正确性.

Analysis of Image Characteristics of Narrow-band High-resolution MIMO Radar

Aimed at the target identification of the narrow-band MIMO（NMIMO） radar,the image characteristics of the NMIMO target were investigated.For this purpose,the imaging method for NMIMO radar was briefly introduced at first.Next,the distribution characteristics of such three parameters as the scattering center location and amplitude as well as the image resolution over the target NMIMO radar image were analyzed,by combining with the four typical modes of motion.And then,the rules of the three parameters variation of target NMIMO radar image under the various moving modes were given,respectively.Finally,the relative conclusions were verified by simulating the target imaging results.Simulation results show that the scattering center structure is more insensible to the variation of the targets’attitude,with respect to the scattering center amplitude and the image resolution,which demonstrates the availability of the theoretical analysis.