| 一种非均匀环境中鲁棒的STAP算法 |
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| 引用本文： | 吴迪,朱岱寅,朱兆达.一种非均匀环境中鲁棒的STAP算法[J].南京航空航天大学学报,2011,43(6). |
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| 作者姓名： | 吴迪 朱岱寅 朱兆达 |
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| 作者单位： | 南京航空航天大学电子信息工程学院,南京,210016 |
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| 基金项目： | 国家自然科学基金(61071165)资助项目; 中国博士后科学基金(201003586,20090461119)资助项目; 航空科学基金(20102052024)资助项目 |
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| 摘 要： | 针对非均匀环境对STAP性能的影响,提出了一种新的结构化STAP算法:首先根据已知的杂波结构、系统参数直接构造杂噪协方差矩阵,再根据样本对其结构进行自适应调整,并由调整后的矩阵构造最终的空时权矢量.由于协方差矩阵并不由训练样本直接估计构成,此算法在实际处理中受各种非均匀现象的影响极小.三通道机载雷达实测数据处理结果表明,此算法在实际环境中,具有良好的检测性能,是一种非均匀环境中鲁棒的STAP技术.
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| 关 键 词： | 空时自适应处理 地面动目标指示 非均匀环境 鲁棒性 |
Robust STAP Algorithm in Heterogeneous Environment |
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| Wu Di
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Zhu Daiyin
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Zhu Zhaoda.Robust STAP Algorithm in Heterogeneous Environment[J].Journal of Nanjing University of Aeronautics & Astronautics,2011,43(6). |
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| Authors: | Wu Di Zhu Daiyin Zhu Zhaoda |
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| Institution: | Wu Di,Zhu Daiyin,Zhu Zhaoda(College of Electronics and Information Engineering,Nanjing Universityof Aeronautics & Astronautics,Nanjing,210016,China) |
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| Abstract: | According to the performance loss of STAP caused by the heterogeneous environments,a new structured STAP algorithm is proposed.In the new algorithm,the clutter-plus-noise covariance matrix is formulated by taking advantage of the known structure of ground clutter and parameters of system.The structure of the so called structured matrix then undergoes several adjustments via taper matrices and is employed to calculate the space-time weight vector.Since the covariance matrix is not estimated directly using th... |
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| Keywords: | space time adaptive processing ground moving target indication heterogeneous environment robustness |
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