组网雷达弹道目标三维微动特征提取  

Extraction of Three-Dimensional Micro-motion Feature from Ballistic Target in Netted Radar

作　　者：张栋[1] 冯存前[1] 贺思三[1] 师俊朋 魏代春 

机构地区：[1]空军工程大学防空反导学院,陕西西安710051 [2]294175 部队,新疆乌鲁木齐830006

出　　处：《空军工程大学学报（自然科学版）》2014年第4期34-37,共4页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(61372166);陕西省自然科学基础研究计划资助项目(2014JM8308)

摘　　要：研究弹道目标中的滑动型散射中心三维微动特征提取问题。分析滑动型散射中心的特点,介绍一种基于半周期时延相乘的散射中心微动特征提取方法,建立滑动型散射中心和理想散射中心微动的数学联系,利用组网雷达的多视角特性,从回波信号中提取参数,通过构造多元非线性方程组,以提取的参数作为变量,求解目标三维微动参数和部分结构特征。仿真实验验证了该方法的有效性。Extraction method of three-dimensional micro-motion feature from sliding-type scattering center in ballistic target is studied.Firstly,the characteristics of sliding-type scattering center are analyzed in the paper,a new feature extraction method based on half period delay multiplication is introduced,and the mathematical relationships between sliding-type scattering center and ideal scattering center are built up. And then parameters are extracted from echo signals by utilizing the multi-view characteristics of netted radar.Through the structure of nonlinear multivariable equation systems,the three-dimensional micromotion paracters and part of the structure features are solved by taking an extracted parameter as variate. The simulation results show that the proposed algorithm is effective.

关 键 词：组网雷达 微多普勒 滑动型散射中心 三维微动特征 three-dimensional MICRO-MOTION feature(换) 

分 类 号：TN957[电子电信—信号与信息处理]