| 用投影算子改善信号子空间方向估计算法的稳健性 |
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| 引用本文： | 路鸣. 用投影算子改善信号子空间方向估计算法的稳健性[J]. 电子学报, 1994, 0(1) |
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| 作者姓名： | 路鸣 |
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| 作者单位： | 东南大学无线电工程系 |
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| 摘 要： | 基于信号子空间的超分辨方法一般对接收器阵列误差非常敏感。本文提出的投影变换法利用目标方向的初始估计和阵列流形的先验知识，可以显著减小信号子空间方法的误差灵敏度。文中给出了数值仿真和实际阵列数据测试的结果。
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| 关 键 词： | 天线阵列，测向，信号子空间，稳健性，投影算子 |
Robust Signal Subspace Methods for Direction Finding via Projection Operation |
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| Lu Ming. Robust Signal Subspace Methods for Direction Finding via Projection Operation[J]. Acta Electronica Sinica, 1994, 0(1) |
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| Authors: | Lu Ming |
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| Abstract: | Signal subspace-based high resolution algorithms are usually sensitive to various uncertainties such as locations errors,amplitude and phase errors in the receivers etc.It is demonstrated in this correspondence that the signal subspace method sensitivity can be significantly decreased by utilizing preliminary emitter direction estimates and a priori knowledge regarding the array geometry with a projection operator.Numerical results are also presented. |
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| Keywords: | Antenna array Direction finding Signal subspace Robustness Projection operator |
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