| 基于改进MUSIC算法的二维DOA估计方法 |
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| 引用本文： | 苏淑靖,颜景龙,马维贤.基于改进MUSIC算法的二维DOA估计方法[J].中北大学学报,2007,28(Z1):80-83. |
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| 作者姓名： | 苏淑靖 颜景龙 马维贤 |
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| 作者单位： | 北京理工大学宇航科学技术学院，北京理工大学宇航科学技术学院，北京理工大学宇航科学技术学院 北京100081，中北大学电子与计算机科学技术学院，山西太原030051，北京100081，中国兵器工业系统总体部，北京100089，北京100081 |
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| 摘 要： | 提出了一种改进的二维MUSIC算法,该算法通过重构阵列接收数据协方差矩阵来降低入射信号源间的相关性,抑制信号子空间向噪声子空间的扩散,从而解决用MUSIC算法估计相干信号源到达方向(DOA)时的漏估计问题.该方法不仅对相关信号源的DOA估计有好的特性,也可以提高非相关信号源的DOA估计特性,而且计算量也没有大的增加.仿真试验证明了改进算法的有效性.
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| 关 键 词： | 波达方向估计 MUSIC算法 协方差矩阵重构 |
| 文章编号： | 1673-3193(2007)增刊-0080-04 |
| 修稿时间： | 2007年10月20 |
A Method of 2-D DOA Estimation Based on Modified MUSIC Algorithm |
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| SU Shu-jing,YAN Jing-long,MA Wei-xian.A Method of 2-D DOA Estimation Based on Modified MUSIC Algorithm[J].Journal of North University of China,2007,28(Z1):80-83. |
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| Authors: | SU Shu-jing YAN Jing-long MA Wei-xian |
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| Abstract: | A method of being modified 2-D DOA estimation is presented.By reconstructing covariance matrix of the received array data,the correlativity of the incident signals is decreased,and mis-division between signal subspace and noise subspace is controlled,therefore the number of estimated signals would be equal to the number of actual incident signals.This method has good performance not only for DOA estimation of the correlation signals,but for DOA estimation of the non-correlation signals.In addition the computational complexity will not increase obviously.The simulation tests verify the validity of the presented algorithm. |
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| Keywords: | direction of arrival estimation(DOA) MUSIC algorithm reconstructed covariance matrix |
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