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| 基于OFD-LFM信号的MIMO雷达微多普勒效应分析 | |
| 引用本文： | 梁贤姣,张群,罗迎,叶蔚.基于OFD-LFM信号的MIMO雷达微多普勒效应分析[J].现代防御技术,2011,39(2):118-122. |
| 作者姓名： | 梁贤姣 张群 罗迎 叶蔚 |
| 作者单位： | 1. 空军工程大学电讯工程学院,陕西,西安,710077 2. 空军工程大学电讯工程学院,陕西,西安,710077;复旦大学波散射与遥感信息国家教育部重点实验室,上海,200433 3. 中国人民解放军94270部队,山东,济南,250017 |
| 摘 要： | 多输入多输出(MIMO)雷达系统利用空间分集技术,能够在不同视角接收目标回波信号,与传统单基雷达系统相比,可以提取更丰富的目标特征信息,因而大大提高了雷达的目标运动参数估计精度。基于MIMO雷达系统,详细推导了正交频分线性调频信号体制下目标部件旋转引入的微多普勒效应,通过取多组观测数据的数学期望对旋转半径进行了参数估计,最后的仿真实验验证了理论分析的结果,得到的旋转半径估值与真实值非常接近。 |
| 关 键 词： | MIMO雷达 正交频分 微多普勒 参数估计 |
MIMO Radar Micro-Doppler Effect Analysis Based on OFD-LFM Signal |
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| LIANG Xian-jiao,MANG Qun,LUO Ying,YE Wei.MIMO Radar Micro-Doppler Effect Analysis Based on OFD-LFM Signal[J].Modern Defence Technology,2011,39(2):118-122. | |
| Authors: | LIANG Xian-jiao MANG Qun LUO Ying YE Wei |
| Institution: | LIANG Xian-jiao1,ZHANG Qun1,2,LUO Ying1,YE Wei3(1.AFEU,Institute of Telecommunication Engineering,Shaanxi Xi' an 710077,China,2.Fudan University,Key Laboratory of Wave Scattering and Remote Sensing Information(Ministry of Education),Shanghai 200433,3.PLA,No.94270 Troop,Shandong Jinan 250017,China) |
| Abstract: | Compared with traditional monostatic radar system,multiple input multiple output(MIMO) radar system can receive returned signals from targets in different aspects with respect to the transmitting/receiving radar pairs by utilizing the spatial diversity technology and can obtain more target information,which highly improves the radar's estimation accuracy of target moving parameters.Based on the MIMO radar system with orthogonal frequency division linear frequency modulation(OFD-LFM) signals,the micro-Dopple... |
| Keywords: | multiple input multiple output(MIMO) radar orthogonal frequency division micro-Doppler parameter estimation |
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