基于重构信号和1范数的动目标参数估计方法  

Novel parameter estimation method for moving targets based on reconstructing signals and L1-norm

作　　者：李海[1] 郑景忠 吴仁彪[1] 贾琼琼[1] 

机构地区：[1]中国民航大学天津市智能信号与图像处理重点实验室,天津300300

出　　处：《系统工程与电子技术》2014年第11期2172-2177,共6页Systems Engineering and Electronics

基　　金：国家自然科学基金(61231017;61471365);中央高校基本科研业务费项目(3122014D007);中央高校基本科研业务费资助项目(SY-1425);蓝天青年学者培养经费资助课题

摘　　要：提出了一种基于重构信号和1范数的动目标参数估计方法。该方法利用重构信号与杂波抑制后数据的1范数构造代价函数完成对动目标的参数估计,能够在雷达发射脉冲数有限的情况下获得准确的参数估计结果。给出了其对应Cramer-Rao界的详细推导过程;通过将仿真结果与Cramer-Rao界的比较,证明了该方法的有效性。A novel parameter estimation method for moving targets based on reconstructing signals and the L1-norm is proposed.The cost function is constructed by using the L1-norm of reconstructed signal and the data after clutter suppression.The parameters of the moving target can be estimated accurately with the proposed method when the pulse number of airborne radars is limited.The Cramer-Rao bound of parameter estimation for moving target is derived as well.The performance of the proposed method is verified through the numerical simulations compared with the Cramer-Rao bound.

关 键 词：动目标 重构信号 1范数 参数估计 CRAMER-RAO界 

分 类 号：TN957.51[电子电信—信号与信息处理]