AUTOMATIC TARGET RECOGNITION OF RADAR HRRP BASED ON HIGH ORDER CENTRAL MOMENTS FEATURES

来源 :Journal of Electronics(China) | 被引量 : 0次 | 上传用户:yyy123yy
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The paper addresses the problem of target recognition using High-resolution Radar Range Profiles(HRRP).A novel approach of feature extraction and dimension reduction based on extended high order central moments is proposed in order to reduce the dimension of range profiles.Features extracted from radar HRRPs are normalized and smoothed,and then comparative analysis of the similar approaches is done.The range profiles are obtained by step frequency technique using the two-dimensional backscatters distribution data of four different aircraft models.The template matching method by nearest neighbor rules,which is based on the theory of kernel methods for pattern analysis,is used to classify and identify the range profiles from four different aircrafts.Numerical simulation results show that the proposed approach can achieve good performance of stability,shift independence and higher recognition rate.It is helpful for real-time identification and the engineering implements of automatic target recognition using HRRP.The number of required templates could be reduced con-siderably while maintaining an equivalent recognition rate. The paper addresses the problem of target recognition using High-resolution Radar Range Profiles (HRRP). A novel approach of feature extraction and dimension reduction based on extended high order central moments is proposed in order to reduce the dimension of range profiles.Features extracted from radar HRRPs are normalized and smoothed, and then comparative analysis of the similar approaches is done. The range profiles are obtained by step frequency technique using the two-dimensional backscatters distribution data of four different aircraft models. The template matching method by nearest neighbor rules, which is based on the theory of kernel methods for pattern analysis, is used to classify and identify the range profiles from four different aircrafts. Numerical simulation results show that the proposed approach can achieve good performance of stability, shift independence and higher recognition rate. is helpful for real-time identification and the engineering implements of automatic targe t recognition using HRRP. The number of required templates could be reduced con-siderably while maintaining an equivalent recognition rate.
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三星集团是韩国最大的世界级企业,其创始人李秉哲更是闻名遐迩,在韩国早就有“经营奇才”和“韩国财界的脸面”之誉。  在其50年的创业生涯中,李秉哲历尽艰难险阻,把“三星”从一个小本经营的贸易商行,做成了业务遍及全球各地、麾下拥有24个大企业的世界性大公司,铸造了韩国经济的辉煌。  初显锋芒  1910年2月12日,李秉哲出生在韩国庆尚南道宜宁郡一个富裕的农民家庭。祖父是文人,李秉哲自小就在祖父开办的