| 未知互耦条件下的均匀线阵波达方向估计算法 |
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| 引用本文： | 戴继生,叶中付. 未知互耦条件下的均匀线阵波达方向估计算法[J]. 中国科学技术大学学报, 2009, 39(11) |
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| 作者姓名： | 戴继生 叶中付 |
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| 作者单位： | 中国科学技术大学信号统计处理研究室,安徽,合肥,230027 |
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| 摘 要： | 基于互耦矩阵的特殊结构,提出了两种在未知互耦条件下改进的均匀线阵波达方向估计算法.为了提高在未知互耦条件下波达方向估计算法的性能,提出了一种采用空间平滑的改进算法.由于未采用迭代算法,从而降低了算法运算复杂度.仿真实验证实了该算法的有效性.
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| 关 键 词： | 波达方向 互耦 空间平滑 校准 均匀线阵 |
DOA estimation for uniform linear array in the DreSence of Unknown mutual coupling |
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| DAI ji-sheng,YE Zhong-fu. DOA estimation for uniform linear array in the DreSence of Unknown mutual coupling[J]. Journal of University of Science and Technology of China, 2009, 39(11) |
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| Authors: | DAI ji-sheng YE Zhong-fu |
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| Abstract: | Based on special structure of coupling matrix,we present two improved algorithms for direction of arrival(DOA)estimation in the presence of unknown mutual coupling for uniform linear array(ULA).To enhance the performance of DOA estimation in the presence of unknown mutual coupling,an improved algorithm using spatial averaging algorithm is also proposed.Iteration is not required in our algorithms,which results in low computational complexity.Simulation results demonstrate the effectiveness of the proposed algorithms. |
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| Keywords: | direction of arrival(DOA) mutual coupling spatial averaging calibration uniform linear array(ULA) |
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