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MIMO雷达最大似然波达方向估计方法 被引量：14

Maximum likelihood DOA estimation of MIMO radar
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摘要 根据MIMO雷达的工作原理和回波模型,在传统最大似然算法的基础上,提出了MIMO雷达波达方向估计的最大似然方法。通过理论分析,给出了波达方向估计的一致性证明和估计方差的计算公式。理论分析表明,MIMO雷达的最大似然估计方差比传统的相控阵雷达要小,估计性能优于传统相控阵雷达。最后通过蒙特.卡罗实验对不同信噪比、快拍数和接收阵元数等情况下波达方向估计的方差进行了仿真,证实了理论分析的正确性。 Based on the conventional algorithm, the maximum likelihood DOA estimation of the MIMO radar is presented according to the principles and echo model of the MIMO radar. Subsequently the estimation consistency is proved, and the estimation variance is derived theoretically. Theoretical analysis shows that the variance of the MIMO radar is lower than that of the conventional phased array radar, and the estimation performance of the MIMO radar is better than that of the phased array radar. By means of Monte Carlo simulations, the estimation variance on different SNR, snapshots and receiving array elements are simulated, the results are consistent with the theoretical analysis.
作者 张娟 张林让 刘楠
机构地区 西安电子科技大学雷达信号处理国防科技重点实验室
出处 《系统工程与电子技术》 EI CSCD 北大核心 2009年第6期1292-1294,共3页 Systems Engineering and Electronics
基金 雷达信号处理国防科技重点实验室基金项目资助课题(9140C0105010703)
关键词 MIM0雷达 回波模型 最大似然估计 估计方差 MIMO radar signal model maximum likelihood estimation estimation variance
分类号 TN958 [电子电信—信号与信息处理]
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参考文献8

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同被引文献118

  • 1王超锋,尹锦荣.基于外辐射源雷达系统的目标定位算法[J].现代雷达,2006,28(10):18-21. 被引量：5
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  • 8Li Zhenfang, Bao Zheng, Suo Zhiyong. A joint image coregistration, phase noise suppression and phase unwrapping method based on subspace projection for multibaseline InSAR systems [J]. IEEE Trans. on Geoscience and Remote Sensing, 2007,45 (3):584 -591.
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引证文献14

二级引证文献60

系统工程与电子技术
2009年 第6期

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