| 基于IMF能量分布重构的目标检测技术 |
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| 引用本文： | 张林,黄勇,薛永华,关键.基于IMF能量分布重构的目标检测技术[J].海军航空工程学院学报,2019,34(5):401-406. |
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| 作者姓名： | 张林 黄勇 薛永华 关键 |
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| 作者单位： | 海军航空大学,山东烟台 264001,海军航空大学,山东烟台 264001,海军航空大学,山东烟台 264001,海军航空大学,山东烟台 264001 |
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| 摘 要： | 为提高海杂波中慢速目标的检测性能,提出了一种基于IMF能量分布重构的目标检测技术。该算法对原始信号尖峰区域经经验模态分解后得到的固有模态函数进行分段数据重构,计算前端IMF分量与后端IMF分量的能量比,并将其输入非参量检测器中进行目标检测。研究表明,相比于海杂波单元,目标单元尖峰区域有更小的前后端IMF分量能量比,适用于慢速目标的检测。
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| 关 键 词： | 固有模态函数 能量比 广义符号 海尖峰 |
Target Detection Technology Based on the Reconstruction of Energy Distribution |
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| ZHANG Lin,HUANG Yong,XUE Yonghua and GUAN Jian.Target Detection Technology Based on the Reconstruction of Energy Distribution[J].Journal of Naval Aeronautical Engineering Institute,2019,34(5):401-406. |
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| Authors: | ZHANG Lin HUANG Yong XUE Yonghua and GUAN Jian |
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| Institution: | Navel Aviation University, Yantai Shandong 264001, China,Navel Aviation University, Yantai Shandong 264001, China,Navel Aviation University, Yantai Shandong 264001, China and Navel Aviation University, Yantai Shandong 264001, China |
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| Abstract: | In order to improve the detection performance of slow target in sea clutter, target detection technology based onthe reconstruction of energy distribution was proposed. Firstly, for getting the intrinsic mode function (IMF) after data re?construction, the spiky area of the original signal was decomposed by using empirical mode decomposition (EMD), then theenergy ratio of IMF was calculated and target was detected by nonparametric detector. The results show that, comparedwith sea clutter bin, the energy ratio of IMF is bigger in target bin, and the technology is suitable for slow target detection. |
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| Keywords: | intrinsic mode function energy ratio generalized sign spiky sea clutter |
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