| 基于物理光学法的近场多入多出雷达成像模拟 |
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| 引用本文： | 经 文,赵宇姣,江 舸,刘 杰,成彬彬,张 健.基于物理光学法的近场多入多出雷达成像模拟[J].太赫兹科学与电子信息学报,2019,17(6):981-987. |
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| 作者姓名： | 经 文 赵宇姣 江 舸 刘 杰 成彬彬 张 健 |
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| 作者单位： | Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang Sichuan 621999,China,Microsystem & Terahertz Research Center,China Academy of Engineering Physics,Mianyang Sichuan 621999,China,Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang Sichuan 621999,China,Microsystem & Terahertz Research Center,China Academy of Engineering Physics,Mianyang Sichuan 621999,China,Microsystem & Terahertz Research Center,China Academy of Engineering Physics,Mianyang Sichuan 621999,China and a.Institute of Electronic Engineering;b.Microsystem & Terahertz Research Center,China Academy of Engineering Physics,Mianyang Sichuan 621999,China |
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| 基金项目： | 国家自然科学基金资助项目(61601424) |
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| 摘 要： | 针对点目标扩展函数(PSF)不能有效分析复杂目标在毫米波近场多入多出(MIMO)雷达成像中的散射机理问题,研究了一种基于近场物理光学散射计算数据的毫米波MIMO雷达成像模拟方法。该方法利用近场物理光学方法,获得包含阵列构型和目标散射信息的近场计算数据,并通过近场MIMO成像处理器实现近场MIMO成像的全过程模拟。利用D波段“T”字型二维稀疏MIMO阵对复杂的三维目标开展了近场成像实验,仿真和实验结果表明,模拟结果与实际成像结果有很好的一致性。该方法能够分析近场MIMO成像系统的成像性能,为近场MIMO成像的阵型设计提供支撑,揭示复杂目标的近场散射特性与成像机理。
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| 关 键 词： | 近场MIMO成像 成像模拟 物理光学 |
| 收稿时间： | 2018/11/19 0:00:00 |
| 修稿时间： | 2019/2/7 0:00:00 |
Near-field MIMO radar imaging simulation based on physical optics method |
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| JING Wen,ZHAO Yujiao,JIANG Ge,LIU Jie,CHENG Binbin and ZHANG Jian.Near-field MIMO radar imaging simulation based on physical optics method[J].Journal of Terahertz Science and Electronic Information Technology,2019,17(6):981-987. |
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| Authors: | JING Wen ZHAO Yujiao JIANG Ge LIU Jie CHENG Binbin and ZHANG Jian |
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| Abstract: | In view of the Point Spread Function(PSF) for near-field Multiple-Input Multiple-Output (MIMO) radar imaging cannot analyze the scattering mechanism of complex targets effectively, a simulation method of millimeter wave near-field MIMO radar imaging based on near-field Physical Optical(PO) scattering data is studied. The method uses near-field physical optics method to compute the near-field scattering field including the information of array configuration and scattering mechanism. Near-field MIMO image is finally generated by imaging processor. Using the D-band "T"-shaped two-dimensional sparse MIMO arrays to carry out the near-field imaging experiment, the simulation results are in good agreement with the actual imaging results. This method can analyze the imaging performance of the near-field MIMO imaging system, support the formation design, and reveal the near-field scattering characteristics and imaging mechanism of complex targets. |
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