基于弹道目标重诱饵摆动的微多普勒及其特征提取研究  

Research on Micro-Doppler and Its Property Extraction Based on Heavy Decoy Wobble in Ballistic Targets

作　　者：孙照强[1] 鲁耀兵[1] 李宝柱[1] 

机构地区：[1]中国航天科工集团二院23所,北京100854

出　　处：《现代防御技术》2008年第5期97-102,共6页Modern Defence Technology

摘　　要：通过巧妙地引入目标初始坐标系,并利用目标初始坐标系和目标坐标系的关系,建立了再入初段重诱饵摆动的数学模型,推导出了重诱饵摆动的微多普勒理论公式。首次提出了用时域自相关法和频域倒谱法来提取微多普勒变化周期,并用傅里叶变换法提取微多普勒的最大值,仿真结果证明了上述方法的正确性和有效性。The mathematic model of heavy decoy wobble is established through introduction of initial target coordinate system and the relation between target coordinate system and initial target coordinate system.The theoretical result of micro-Doppler of heavy decoys wobble is deduced.Utilizing autocorrelation function in time field and cepstrum in frequency field to extract the period of microDoppler variation and utilizing FFT to extract the maximum of micro-Doppler are proposed for the first time.The methods menti...

关 键 词：重诱饵 摆动 微多普勒 目标识别 

分 类 号：TJ761.3[兵器科学与技术—武器系统与运用工程]