引用本文: | 刘勇,李永祯,王雪松,等.雷达目标全极化一维距离像的瞬时测量方法[J].国防科技大学学报,2008,30(5):43-48.[点击复制] |
LIU Yong,LI Yongzhen,WANG Xuesong,et al.Instantaneous Measuring Method of Radar Target Full-polarization Range Profiles[J].Journal of National University of Defense Technology,2008,30(5):43-48[点击复制] |
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雷达目标全极化一维距离像的瞬时测量方法 |
刘勇1, 李永祯1, 王雪松1, 吕彤光2 |
(1.国防科技大学 电子科学与工程学院,湖南 长沙 410073;2.二炮装备研究院,北京 100085)
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摘要: |
雷达目标宽带全极化测量在雷达成像、目标识别等领域有着重要应用,为此,基于正交频率分集思想,设计了一种用于宽带全极化瞬时测量的矢量信号波形;给出发射信号模型和回波信号模型,利用该波形的单个脉冲回波,可以获取测量带宽内多频点全极化数据,再经逆离散傅立叶变换后可以得到目标的全极化一维距离像;最后,用仿真数据和实测数据进行仿真实验,验证了该方法的有效性。 |
关键词: 全极化一维距离像 瞬时测量 正交频率分集 极化散射矩阵 |
DOI: |
投稿日期:2008-04-16 |
基金项目:国家自然科学基金重点项目(60736006);湖南省教育厅资助科研项目 |
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Instantaneous Measuring Method of Radar Target Full-polarization Range Profiles |
LIU Yong1, LI Yongzhen1, WANG Xuesong1, LU Tongguang2 |
(1.College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China;2.The Second Artillery Equipment Institute, Beijing 100085, China)
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Abstract: |
Wideband full-polarization measurement for radar target is of important application in the research fields of radar imaging and target recognition. Based on orthogonal frequency division and full-polarization instantaneous measuring method, a new waveform vector was designed to get full-polarization information simultaneously under wideband condition. Firstly, the models of emitting and receiving signals were given, and full-polarization datum in frequency could be gathered, and then target full-polarization range profiles were obtained after IDFT. Finally, the validity of this measuring method was verified by simulation, using simulated datum and real measured datum. |
Keywords: full-polarization range profile instantaneous measurement orthogonal frequency division polarization scattering matrix |
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