| OFD-LFM MIMO雷达中目标部件振动的微多普勒效应分析 |
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| 引用本文： | 梁贤姣,张群,罗迎.OFD-LFM MIMO雷达中目标部件振动的微多普勒效应分析[J].火力与指挥控制,2012,37(1):29-31,35. |
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| 作者姓名： | 梁贤姣 张群 罗迎 |
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| 作者单位： | 1. 空军工程大学电讯工程学院,西安,710077
2. 空军工程大学电讯工程学院,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 |
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| 摘 要： | 与传统单基雷达系统相比,多输入多输出(MIMO)雷达系统充分利用发射分集和接收分集的优势,能够在不同的视角接收目标回波信号,可以提取目标更精细的微多普勒特征,因而大大提高了雷达对目标的识别能力。基于MIMO雷达系统,详细分析推导了正交频分线性调频信号体制下目标部件振动的微多普勒效应,并采用时频分析工具对理论分析的结果进行了仿真验证。
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| 关 键 词： | MIMO雷达 正交频分 微多普勒 时频分析 |
Analysis of Micro-doppler Effect Induced by Vibration Parts of Target in OFD-LFM MIMO Radar |
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| LIANG Xian-jiao
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ZHANG Qun
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LUO Ying.Analysis of Micro-doppler Effect Induced by Vibration Parts of Target in OFD-LFM MIMO Radar[J].Fire Control & Command Control,2012,37(1):29-31,35. |
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| Authors: | LIANG Xian-jiao ZHANG Qun LUO Ying |
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| Institution: | 1(1.Institute of Telecommunication Engineering,AFEU,Xi’ an 710077,China,2. Key Laboratory of Wave Scattering and Remote Sensing Information(Ministry of Education),Fudan University,Shanghai 200433,China) |
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| Abstract: | Compared to traditional monostatic radar system,MIMO(Multiple Input Multiple Output) radar system takes full advantage of both the transmitting diversity and receiving diversity,it can receive returned signals from targets in different aspects with respect to the transmitting/receiving radar pairs.So it can extract more subtle micro-Doppler characteristics about the target and highly improve the target recognition capability of radar.Based on the MIMO radar system with OFD-LFM(Orthogonal Frequency Division Linear Frequency Modulation) signals,the micro-Doppler effect induced by vibration parts of the target is deduced in detail and then simulation experiments are done with time-frequency analysis tools to validate the theoretic conclusions. |
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| Keywords: | MIMO radar orthogonal frequency division micro-Doppler timefrequency analysis |
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