| 一种基于分数阶傅里叶变换域加权MUSIC算法的移动单站多目标无源定位方法 |
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| 引用本文： | 何伟艳,金荣洪,耿军平,梁仙灵.一种基于分数阶傅里叶变换域加权MUSIC算法的移动单站多目标无源定位方法[J].上海交通大学学报,2011,45(3):345-0349. |
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| 作者姓名： | 何伟艳 金荣洪 耿军平 梁仙灵 |
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| 作者单位： | （上海交通大学 电子信息与电气工程学院， 上海200240） |
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| 基金项目： | 航天支撑基金资助项目; 国家重点基础研究发展规划(973)项目(2009CB320205) |
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| 摘 要： | 针对多个线性调频信号目标源存在的情况，通过分析接收信号的多普勒频移，建立移动单站上天线阵列对多分量线性调频（LFM）信号的接收模型，提出基于分数阶傅里叶变换（FRFT）域加权MUSIC算法的无源定位方法，实现了低信噪比下多目标的信号检测与方位估计.仿真结果表明，该算法可以分辨多个频率及空间相近的目标源，且精度很高.
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| 关 键 词： | 线性调频信号 多目标 无源定位 分数阶傅里叶变换 加权MUSIC算法 |
| 收稿时间： | 2010-03-30 |
A Method for Multi-target Passive Location by a Movable Single Station Based on Weighted MUSIC Algorithm in FRFT Domain |
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| HE Wei-yan,JIN Rong-hong,GENG Jun-ping,LIANG Xian-ling.A Method for Multi-target Passive Location by a Movable Single Station Based on Weighted MUSIC Algorithm in FRFT Domain[J].Journal of Shanghai Jiaotong University,2011,45(3):345-0349. |
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| Authors: | HE Wei-yan JIN Rong-hong GENG Jun-ping LIANG Xian-ling |
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| Institution: | (School of Electronic, Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China) |
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| Abstract: | Aiming at the situation of multiple linear frequency modulation(LFM) signal sources,by analyzing the Doppler shift of received signals,a multi-component LFM signal model for the antenna array on a movable single station was built.Then a method for multi-target passive location based on weighted MUSIC algorithm in fractional Fourier transformation(FRFT) domain was presented,which implements the detection and DOA estimation of multi-target signals at low SNR.The simulation results show that multiple targets w... |
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| Keywords: | linear frequency modulation(LFM) signal multi-target passive location fractional Fourier transformation (FRFT) weighted MUSIC algorithm |
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