匀加速运动对频率步进雷达目标一维距离像的影响及其运动补偿方法  

Influence of Target's Uniformly Accelerated Motion on High Resolution Range Profile for Stepped Frequency Radar and It's Motion Compensation Method

作　　者：崔应留[1,2] 罗文茂[1] 王德纯[3] 

机构地区：[1]南京理工大学电子工程与光电技术学院,南京210094 [2]南京审计学院信息科学学院,南京211815 [3]南京电子技术研究所,南京210094

出　　处：《弹箭与制导学报》2014年第6期135-138,144,共5页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：国家自然科学基金(61170105);江苏省自然科学青年基金(BK2012472)资助

摘　　要：针对频率步进雷达目标运动参数估计问题,提出了基于调频傅里叶变换方法估计目标的加速度和速度,实现运动补偿。在分析匀加速运动对目标一维距离像影响的基础上,采用直接相位一阶差分法,并运用调频傅里叶变换分别精确估计目标加速度和速度,并完成对目标回波的运动补偿。计算机仿真实验进一步说明了文中所采用方法的有效性,并具有一定的抗干扰能力。In view of accurate estimation of motion parameters for the stepped frequency radar’s targets,chirp-Fourier transform method was resented to estimate target’s velocity and acceleration. Based on the analysis of uniformly accelerated motion’s influence on the target range profile,the target’s acceleration and velocity were estimated accurately by the method of the direct phase difference and chirpFourier transform to achieve accurate compensation of target’s motion. Finally,the simulation results proved the validity of the method. It also has a certain anti-interference ability.

关 键 词：运动补偿 一阶差分 调频傅里叶变换 加速度 

分 类 号：TN957.52[电子电信—信号与信息处理]