| 阵列幅相误差影响下的一维噪声子空间算法 |
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| 引用本文： | 张志军,张浩,朱国军. 阵列幅相误差影响下的一维噪声子空间算法[J]. 兵工自动化, 2006, 25(12): 45-47 |
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| 作者姓名： | 张志军 张浩 朱国军 |
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| 作者单位： | 西安电子科技大学,雷达信号处理国家重点实验室,陕西,西安,710071;西安电子科技大学,雷达信号处理国家重点实验室,陕西,西安,710071;西安电子科技大学,雷达信号处理国家重点实验室,陕西,西安,710071 |
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| 摘 要： | 针对阵元幅相误差对一维噪声子空间算法测向性能的影响,先根据相关参数推导出阵元幅相误差影响下的空间谱计算公式,再以均匀线阵为例进行仿真.其在信噪比较高和采样数较大情况下,对于波达方向角间隔较大的两不相干信号,一维噪声子空间和MUSIC算法都能准确估计其来波方向;当信噪比较低和快拍数较少,信号到达方向角间隔较小,此时MUSIC算法失效,而一维噪声子空间算法仍能正确的分辨出相邻的两个信号源.
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| 关 键 词： | 幅相误差 测向性能 一维噪声子空间算法 MUSIC算法 |
| 文章编号： | 1006-1576（2006）12-0045-03 |
| 收稿时间： | 2006-08-04 |
| 修稿时间： | 2006-09-25 |
One-Dimension Noise Sub-Space Algorithm Under Effect of Array Amplitude and Phase Errors |
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| ZHANG Zhi-jun,ZHANG Hao,ZHU Guo-jun. One-Dimension Noise Sub-Space Algorithm Under Effect of Array Amplitude and Phase Errors[J]. Ordnance Industry Automation, 2006, 25(12): 45-47 |
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| Authors: | ZHANG Zhi-jun ZHANG Hao ZHU Guo-jun |
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| Abstract: | Based on the effect of sensor amplitude and phase errors on one-dimension noise sub-space algorithm,the spatial spectrum formula under effect of array amplitude and phase errors was deduced in terms of correlated parameters.Then,the system carried out simulation with linear array.The one-dimension noise sub-space algorithm and MUSIC algorithm could estimate the DOA of incoherent signals whose arriving angels interval were far under stronger SNR and greater sample.MUSIC algorithm was invalid in the case of smaller SNR and less sample,but one-dimension noise sub-space algorithm still could distinguish the two signals which had closer arriving angel interval. |
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| Keywords: | Amplitude and phase Errors Measure direction performance One-dimension noise sub-space algorithm MUSIC algorithm |
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