| 基于子阵结构的相控阵MIMO雷达分辨能力分析 |
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| 引用本文： | 文小乔,谭贤四,吕伟,王力宝.基于子阵结构的相控阵MIMO雷达分辨能力分析[J].火力与指挥控制,2016(8):41-46. |
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| 作者姓名： | 文小乔 谭贤四 吕伟 王力宝 |
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| 作者单位： | 空军预警学院,武汉,430019 |
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| 基金项目： | 国家自然科学基金资助项目(61201451) |
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| 摘 要： | 在阵元总数一定的情况下,不同的子阵划分方式和布阵间距对不同子阵发射正交波形,子阵内发射相干波形的相控阵-MIMO雷达系统的分辨力的影响,首先通过相控阵-MIMO雷达的信号模型推导出其广义模糊函数,然后以此分析子阵结构对距离、多普勒、方位三维分辨力的影响。仿真结果表明,在阵元总数一定的情况下,子阵越多,系统距离分辨力越高,子阵越大,多普勒分辨力越高,子阵间距满足一定条件才能有较好的系统分辨力。这些结论对相控阵-MIMO雷达子阵结构设计具有指导意义。
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| 关 键 词： | 相控阵MIMO雷达 广义模糊函数 分辨力 正交频分信号 |
Resolution Analysis of Phased-MIMO Radar Based on Subarray Configuration |
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| Abstract: | It is very important for phased-multiple input multiple output(MIMO)radar systems to make sure how to partition the transmit array in order to satisfy the requirements of performance. Firstly,the generalized ambiguity function of the MIMO radar into Phased-MIMO radar is extended. Then,the influence of the subarray configuration on range,azimuth,and doppler resolutions are analysed,If the sum of transmitter is assured,the simulation results indicate that the more subarrays are,the better range resolutions is,the bigger subarrays are,the better doppler resolutions is.These conclusion are crucially guiding for subarray configuration. |
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| Keywords: | phased-MIMO radar generalized ambiguity function resolution orthogonal frequency division signal |
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