| 基于Y形阵的空时二维DOA估计 |
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| 引用本文： | 谢维华,左继章. 基于Y形阵的空时二维DOA估计[J]. 现代雷达, 2007, 29(1): 71-75 |
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| 作者姓名： | 谢维华 左继章 |
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| 作者单位： | 空军工程大学工程学院,西安,710038 |
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| 摘 要： | 提出了一种适用于Y形阵的空时二维波达方向估计方法,在低信噪比下实现了无模糊的二维波达方向估计。该方法利用了Y形阵的特性,采用空时二维处理,通过采样数据归一化、加权处理和参数回代的方法解决了前后向模糊问题,具有较好的稳定性和较小的估计方差。由于在低信噪比下的优良性能,该算法适合于复杂电磁环境下的应用。仿真结果证明了方法的有效性。
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| 关 键 词： | 波达方向估计 阵列信号处理 Y形阵 特征分解 |
| 修稿时间： | 2006-10-07 |
A Y-shaped-array for Direction of Arrival Estimation Via Space-time Processing |
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| XIE Wei-hua,ZUO Ji-zhang. A Y-shaped-array for Direction of Arrival Estimation Via Space-time Processing[J]. Modern Radar, 2007, 29(1): 71-75 |
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| Authors: | XIE Wei-hua ZUO Ji-zhang |
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| Abstract: | A new DOA estimation method is proposed for Yshaped array.With the array geometry characteristics,and adopting space-time processing and sampled data normalizing and weighting,this method solves the fuzzy problem of backward and forward directions.The method has good stability and low estimation variance even if the signal-to-noise ratio is quite low.Simulation results show the effectiveness of the method. |
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| Keywords: | direction of arrival estimation array signal processing Y-shaped array eigendecomposition |
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