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[1]宋 聪,黎 杨*.调频广播外辐射源雷达中的目标方向估计方法[J].武汉工程大学学报,2021,43(03):338-343.[doi:10.19843/j.cnki.CN42-1779/TQ.202101002]
 SONG Cong,LI Yang*.Method for Bearing Estimation of Target in FM Radio-Based Passive Radar[J].Journal of Wuhan Institute of Technology,2021,43(03):338-343.[doi:10.19843/j.cnki.CN42-1779/TQ.202101002]
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调频广播外辐射源雷达中的目标方向估计方法(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
43
期数:
2021年03期
页码:
338-343
栏目:
机电与信息工程
出版日期:
2021-06-30

文章信息/Info

Title:
Method for Bearing Estimation of Target in FM Radio-Based Passive Radar
文章编号:
1674 - 2869(2021)03 - 0338 - 06
作者:
宋 聪1黎 杨*12
1. 武汉工程大学电气信息学院,湖北 武汉 430205;2. 湖北省视频图像与高清投影工程技术研究中心,湖北 武汉 430205
Author(s):
SONG Cong1LI Yang*12
1. School of Electronic and Information Engineering,Wuhan Institute of Technology, Wuhan 430205, China; 2. Hubei Video Image and HD Projections Engineering Research Center,Wuhan 430205,China
关键词:
调频广播外辐射源雷达阵列信号处理多普勒频移DOA估计
Keywords:
FM radio passive radar array signal processing dopplershift DOA estimation
分类号:
TN954
DOI:
10.19843/j.cnki.CN42-1779/TQ.202101002
文献标志码:
A
摘要:
针对外辐射源雷达中散射波信号波达方向(DOA)难以估计的问题,提出了一种距离多普勒域阵列信号处理方法。首先计算直达波信号和接收阵列信号的互模糊函数;然后在互模糊函数上抽取特定时差和多普勒的数据构建单个采样点虚拟阵列信号;将单个采样点的虚拟阵列信号扩展为多个采样点的虚拟阵列信号;通过频率扫描的方式,用MUSIC算法进行空间谱估计得到二维DOA-多普勒图,最终可获得散射波的DOA,及其对应的多普勒频率。从理论上推导了虚拟阵列信号的构造过程及散射波增强的原理,并通过仿真实验评估了所提出方法的性能。
Abstract:
A range-Doppler domain array signal processing method was proposed to deal with the problems about estimating the direction-of-arrival (DOA) of the target’s scattered signals in frequency modulation radio-based passive radar. Firstly, the cross-ambiguity functions of the direct-path signal and the received array signal were calculated. Secondly, they were combined to form a single-snapshot virtual array signal. Thirdly, the single-snapshot virtual array signal was extended to compute the virtual array signal of multi-snapshots. Finally, the DOAs of scattered signals, and their corresponding Doppler shifts were estimated by the multiple signal classification approach. The virtual array signal’s construction process and the principle of the enhancement of scattered signals were analyzed theoretically.Additionally, simulation experiments were performed to verify the effectiveness of the proposed method.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2021-01-02作者简介:宋 聪,硕士研究生。E-mail:756684718@qq.com*通讯作者:黎 杨,博士,讲师。E-mail:liyangwhut@126.com引文格式:宋聪,黎杨. 调频广播外辐射源雷达中的目标方向估计方法[J]. 武汉工程大学学报,2021,43(3):338-343.
更新日期/Last Update: 2021-06-28