| 采用 RWT的信号波达方向估计方法 |
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| 引用本文： | 许建忠,王祖林,郭旭静.采用 RWT的信号波达方向估计方法[J].华中科技大学学报(自然科学版),2011,39(9):16-19. |
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| 作者姓名： | 许建忠 王祖林 郭旭静 |
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| 作者单位： | 1. 河北大学物理科学与技术学院,河北保定071002／北京航空航天大学电子信息工程学院,北京100191
2. 北京航空航天大学电子信息工程学院,北京,100191 |
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| 基金项目： | 教育部博士学科点专项科研基金资助项目(20091102120010) |
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| 摘 要： | 针对宽带多线性调频信号波达方向（DOA）估计精度低的问题，提出了一种基于Radon-Wigner变换（RWT）和多重信号分解（MusIc）的信号DOA估计方法．该方法首先利用RWT在多目标环境下能够有效抑制交叉项干扰和噪声，具有很好的时频汇聚性特点，通过峰值搜索提取信号的初始频率和调频斜率；然后将信号阵列的时变方向矩阵...
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| 关 键 词： | 线性调频信号 波达方向估计 Radon-Wigner变换(RWT) 多重信号分解 交叉项抑制 |
Signal arrival direction estimation method using RWT |
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| Xu Jianzhong, Wang Zulin Guo Xujing.Signal arrival direction estimation method using RWT[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2011,39(9):16-19. |
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| Authors: | Xu Jianzhong Wang Zulin Guo Xujing |
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| Institution: | Xu Jianzhong1,2 Wang Zulin2 Guo Xujing2(1 College of Physics Science and Technology,Hebei University,Baoding 071002,China,2 School of Electronics and Information Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China) |
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| Abstract: | According to the low accuracy of direction of arrival(DOA) estimation for wideband linear frequency modulation(LFM) signals,a method of DOA estimation based on Radon-Wigner transform(RWT) and multiple signal classification(MUSIC) was proposed.In this method,first the original frequency and the frequency modulation slope were extracted by peak research,with the excellent time-frequency concentration performance of RWT which can eliminate cross interference terms and noise effectively in the background of mul... |
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| Keywords: | linear frequency modulation signals direction of arrival estimation Radon-Wigner transform(RWT) multiple signal classification cross terms suppression |
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