Feature Extraction and Target Recognition of Missile Targets based on Micro-motion

摘要：

　　The ballistic targets flying in the exo-atmosphere have different micro-motions,the micro-motion of warhead belongs to precession and that of decoy belongs to wobbling or tumbling.This paper investigates the micro-motion difference of warhead and decoy.First,we build the micro-motion model of precession,wobbling and tumbling,derive the micro-Doppler expression and analyze the characteristic of it.Second,with the broadband echo of the microwave anechoic chamber,we analyze the distribution characteristic of the high-resolution range profile (HRRP) serial under different micro-motions,judge whether or not the target is tumbling by finding whether there are intersections in the HRRP serial,and derive a method to estimate the top angle of the tumbling cone.Third,we simulate the time-frequency distribution(TFD) of one range cell of the broadband echo,and analyze the TFD difference of precession,wobbling and tumbling.At last,we put forth a method to recognize the target based on the HRRP serial and the TFD,and the experiment results proved our method to be effective.

关键词： precession wobbling tumbling TFD HRRP serials target recognition

作者: LEI Peng LI Kang-le LIU Yong-xiang

作者单位: School of Electronic Science and Engineering, National University of Defense Technology, Changsha, China

会议类型: 国际会议

会议名称: 2012 IEEE 11th International Conference on Signal Processing (第11届IEEE信号处理国际会议)

会议地点: 北京

会议语种:英文

页码: 1914-1919

在线出版日期: 2012-10-21（万方平台首次上网日期，不代表论文的发表时间）