| 引用本文: | 赵雨睿,宋川江,王翔,等.采用重构吸引子的辐射源个体识别技术.[J].国防科技大学学报,2023,45(5):12-20.[点击复制] |
| ZHAO Yurui,SONG Chuanjiang,WANG Xiang,et al.Specific emitter identification using reconstructed attractors[J].Journal of National University of Defense Technology,2023,45(5):12-20[点击复制] |
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| 采用重构吸引子的辐射源个体识别技术 |
| 赵雨睿1,宋川江1,王翔1,黄知涛1,2 |
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(1. 国防科技大学 电子科学学院, 湖南 长沙 410073;2. 国防科技大学 电子对抗学院, 安徽 合肥 230037)
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| 摘要: |
| 为解决现有基于相空间个体识别方法面临重构特征矢量维数高、计算效率低、鲁棒性差等问题,从非线性动力学角度出发,构建了基于重构吸引子的辐射源个体识别框架,并在此框架内提出了基于等距映射的辐射源个体识别技术。该技术采用等距映射从相空间中重构辐射源吸引子,可以更低的维度描述辐射源系统动力学特性,反映辐射源个体的“指纹”特征。实验表明该方法识别准确率更高、效率更高鲁棒性更强。 |
| 关键词: 辐射源个体识别 吸引子 等距映射 非线性动力学 |
| DOI：10.11887/j.cn.202305002 |
| 投稿日期：2022-09-17 |
| 基金项目:国家自然科学基金面上资助项目(62271494)；国防科技大学青年创新奖资助项目(18/19-QNCXJ) |
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| Specific emitter identification using reconstructed attractors |
| ZHAO Yurui1, SONG Chuanjiang1, WANG Xiang1, HUANG Zhitao1,2 |
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(1. College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China;2. College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China)
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| Abstract: |
| In order to solve the problems of high dimension of reconstructed feature vector, low computational efficiency and poor robustness of existing phase space based individual recognition methods, SEI(specific emitter identification) framework based on reconstructed attractors was proposed from the perspective of nonlinear dynamics. Within the proposed framework, a novel SEI technology based on Isomap(isometric mapping) was developed. The technology used Isomap to reconstruct the emitter attractor from phase space, which can describe the dynamic characteristics of the emitter system in a lower dimension and reflect the “fingerprint” characteristics of the emitter individual. Experiments show that the proposed method can achieve higher accuracy, higher efficiency and better robustness. |
| Keywords: individual identification of specific emitter attractor Isomap nonlinear dynamics |
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