| 一般阵列误差情况下信号二维方向角估计 |
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| 引用本文： | 陶建武,石要武,常文秀.一般阵列误差情况下信号二维方向角估计[J].电波科学学报,2006,21(4):606-611. |
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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. 空军航空大学航空控制工程系,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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| 摘 要： | 针对均匀圆阵存在一般阵列误差的情况,提出一种信号二维方向角估计方法.基于均匀圆阵的阵列流形和阵列输出的协方差矩阵,采用加权总体最小二乘法估计信号二维方向角.并给出了解整周期性模糊的方法.计算机仿真表明了此方法估计精度高,对阵列误差鲁棒性强,并且各项性能都接近于CRB.
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| 关 键 词： | 二维方向角估计 均匀圆阵 阵列误差 |
| 文章编号： | 1005-0388（2006）04-0606-06 |
| 收稿时间： | 2005-02-15 |
| 修稿时间： | 2005年2月15日 |
Estimation of 2D angle for signals with general array error |
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| TAO Jian-wu,SHI Yao-wu,CHANG Wen-xiu.Estimation of 2D angle for signals with general array error[J].Chinese Journal of Radio Science,2006,21(4):606-611. |
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| Authors: | TAO Jian-wu SHI Yao-wu CHANG Wen-xiu |
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| Institution: | 1. The Department of Control Engineering, Aviation University, Changchun Jilin 130022, China;2. The Academy of Communication Engineering, J iLin University, Changchun Jilin 130025, China |
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| Abstract: | For general array error in a uniform circular array (UCA), a scheme of estimation of azimuth and elevation for source is proposed in this paper. Based on direct array manifold in UCA and the covariance matrix of array output, the azimuth and elevation is estimated by weight total least squares technique, and a method to disambiguate the cyclic phase ambiguities is also presented. Numerical results show that the estimator bears high precision, good robust to general array error and the performance close to the CRB. |
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| Keywords: | estimation of 2D angle UCA general array error |
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