| 一种分布式阵列波达方向估计方法 |
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| 引用本文： | 许红波,倪菁,张仕元,丁建江,万山虎.一种分布式阵列波达方向估计方法[J].宇航学报,2012,33(12):1801-1805. |
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| 作者姓名： | 许红波 倪菁 张仕元 丁建江 万山虎 |
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| 作者单位： | 1.空军预警学院，武汉 430000； 2.南京电子技术研究所，南京 210039 |
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| 基金项目： | 国家自然科学基金(61179015);-湖北省自然科学基金(2010CDB03701);学院科研创新研究基金(X11QN103) |
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| 摘 要： | 针对分布式MIMO雷达中的DOA估计问题，提出一种基于分布式子阵列作为发射，密布阵作为接收的DOA估计方法。发射阵元间隔为接收孔径大小。利用发射作为辅助提高阵列自由度,扩展阵列孔径，推导了DOA估计的过程。与密布阵MIMO雷达不同，在空间分集MIMO雷达中提高自由度并扩展阵列孔径。仿真结果表明了算法的正确性和有效性。
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| 关 键 词： | MIMO雷达 阵列信号处理 波达方向 孔径扩展 |
| 收稿时间： | 2011-12-12 |
An Estimation of DOA Methods Based on MIMO Distributed Arrays |
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| XU Hong bo,NI Jing,ZHANG Shi yuan,DING Jian jiang,WAN Shan hu.An Estimation of DOA Methods Based on MIMO Distributed Arrays[J].Journal of Astronautics,2012,33(12):1801-1805. |
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| Authors: | XU Hong bo NI Jing ZHANG Shi yuan DING Jian jiang WAN Shan hu |
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| Institution: | 1.Air Force Early Warning Academy ,Wuhan 430000,China;
2.Nanjing Research Institute of Electronics and Technology, Nanjing 210039，China |
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| Abstract: | For estimation of DOA of MIMO radar, a new method is proposed by using transmit subarrays widely separated and a receive array with the receive elements closely spaced. The spacing between transmit sensors is equal to the aperture of receive array. And the process are deduced to combine all estimations with the assistant of transmit.Compared with colocated MIMO radar, the array aperture and degrees of freedom are improved in spatial diversity MIMO radar, and the simulation results show that the proposed algorithms is effective. |
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| Keywords: | MIMO radar Array signal processing DOA Aperture extension |
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