| 基于均匀圆阵的信号二维方向角互相关估计 |
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| 引用本文： | 陶建武,石要武,常文秀.基于均匀圆阵的信号二维方向角互相关估计[J].电子学报,2003,31(6):875-878. |
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| 作者姓名： | 陶建武 石要武 常文秀 |
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| 作者单位： | 1. 空军第二航空学院,吉林长春 130022;2. 吉林大学通信工程学院,吉林长春 130025 |
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| 基金项目： | 国家自然科学基金 (No .69872 0 1 2 ) |
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| 摘 要： | 针对复值乘性和加性噪声同时存在的情况,提出一种基于均匀圆阵的信号二维方向角互相关估计方法.本文推导出互相关估计公式,分析了估计的统计性能,给出了最优参数选择原则.在不改变均匀圆阵阵列流形的情况下,此方法抑制了信号中的乘性和加性噪声,且计算量小.计算机仿真证明了此方法的有效性.
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| 关 键 词： | 互相关估计 二维方向角 均匀圆阵 乘性噪声 |
| 文章编号： | 0372-2112(2003)06-0875-04 |
| 收稿时间： | 2002-04-19 |
Crosscorrelation Estimator of Azimuth-Elevation with UCAs |
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| TAO Jian-wu ,SHI Yao-wu ,CHANG Wen-xiu.Crosscorrelation Estimator of Azimuth-Elevation with UCAs[J].Acta Electronica Sinica,2003,31(6):875-878. |
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| Authors: | TAO Jian-wu SHI Yao-wu CHANG Wen-xiu |
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| Affiliation: | 1. The Second Aeronautical Institute of Air Force,Changchun,Jilin 130022,China;2. The Communication Academy,Jilin University,Changchun,Jilin 130025,China |
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| Abstract: | In the presence of circular complex-valued multiplicative and additive noise,we proposed a crosscorrelation estimator for the 2-D direction of arrivals of narrowband source impinging on a uniform circular arrays (UCAs).Further,we analyzed the statistics performance of the estimator and gave the selection criterion of the optimal parameters.This estimator can efficiently eliminate the multiplicative and additive noise in the source and retain the better performance of the UCAs.It is provided with less computational load.Numerical simulations validated the theoretical results. |
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| Keywords: | crosscorrelation estimation 2-D direction of arrival UCAs multiplicative noise |
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