| MIMO雷达目标子空间建模与检测性能分析 |
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| 引用本文： | 董云龙,黄勇,关键. MIMO雷达目标子空间建模与检测性能分析[J]. 火力与指挥控制, 2012, 37(1): 25-28 |
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| 作者姓名： | 董云龙 黄勇 关键 |
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| 作者单位： | 海军航空工程学院,山东 烟台,264001 |
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| 摘 要： | 针对具有分布孔径结构的MIMO雷达系统,建立了能描述空域和时域不确定性的目标子空间模型,即多维信号模型,并利用不变原理给出了这种MIMO雷达系统的最大不变检验统计量以及几种子空间检测器。对这些检测器性能的研究表明,目标子空间的维数以及各维上目标功率分布的均匀性对MIMO雷达系统的检测性能都有较大影响;与具有相同天线尺寸的相控阵雷达相比,在角闪烁目标的检测问题中,MIMO雷达系统除了具有非相参积累增益的优势以外,还具有较强的主瓣杂波抑制能力。
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| 关 键 词： | MIMO雷达 分布孔径 不变原理 多维信号模型 增长曲线模型 |
Subspace Modeling of Target and Detection Performance Analysis for MIMO Radar System |
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| DONG Yun-long , HUANG Yong , GUAN Jian. Subspace Modeling of Target and Detection Performance Analysis for MIMO Radar System[J]. Fire Control & Command Control, 2012, 37(1): 25-28 |
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| Authors: | DONG Yun-long HUANG Yong GUAN Jian |
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| Affiliation: | (Naval Aeronautical Engineering Institute,Yantai 264001,China) |
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| Abstract: | The multidimensional signal model of target return for MIMO radar system with distributed apertures is established,which is responsible for the spatial and temporal uncertainty of the target.The invariant theory is used to construct several testing statistics for this MIMO radar system.The simulations show that the dimension of target subspace and the distribution of signal power in target subspace have much effect on the detection performance of the MIMO radar system.In the detection of scintillating target,the MIMO radar system has another advantage of suppressing mainlobe clutter over phased-array radar with the same size of antenna besides the advantage of non-coherent accumulation. |
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| Keywords: | MIMO radar distributed apertures invariant test multidimensional signal model growth-curve model |
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