STUDY ON CLUTTER SUPPRESSION METHOD FOR MICRO-MOTION TARGET

摘要：

　　In order to solve the problem of the energy loss of echo in the time-domain clutter suppression of narrow-band pulse radar,a novel method based on complex empirical mode decomposition(CEMD)for suppressing clutter,is proposed.Firstly,the model of the rotor micro-motion target in ground clutter,is established.The differences of the clutter and micro-motion signal in the spectral width,are analyzed.Then,the time-frequency analysis results of the rotor micro-motion target and clutter are obtained by Gabor transform.Secondly,the clutter and micro-motion signal are separated by CEMD,and by defining the proportion of the total energy occupied by different intrinsic mode functions(IMF),high frequency components are preserved and reconstructed as the rotor micro-motion target in time-frequency domain.Finally,the image of the reconstructed time-frequency result is processed by over-threshold processing.Simulation results verify the effectiveness of the proposed method.

关键词： MICRO-MOTION CLUTTER SUPPRESSION GABOR TRANSFORM COMPLEX EMPIRICAL MODE DECOMPOSITION (CEMD) INTRINSIC MODE FUNCTIONS

作者: Saiqiang Xia Hu Xiang Wenfeng Chen Jun Yang

作者单位: Air Force Early Warning Academy,Wuhan,China

会议类型: 国际会议

会议名称: The 12th International Symposium Antennas, Propagation, and EM Theory(ISAPE 2018)?(第十二届天线、传播与电磁理论国际学术会议)

会议地点: 杭州

会议语种:英文

页码: 1-5

在线出版日期: 2018-12-03（万方平台首次上网日期，不代表论文的发表时间）