| 一种基于二次组阵的DOA估计方法 |
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| 引用本文： | 甘泉,孙学军,唐斌.一种基于二次组阵的DOA估计方法[J].上海航天,2011,28(4):23-26,61. |
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| 作者姓名： | 甘泉 孙学军 唐斌 |
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| 作者单位： | 电子科技大学电子工程学院,四川成都,610054 |
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| 摘 要： | 提出一种基于二次组阵的信号到达方向估计方法，在阵列中通过划分相互重叠的子阵对指定的空间区域进行空域滤波波束设计实现对空间信号的干扰抑制，提高期望信号的信干噪比。根据子阵间的位置关系对阵列进行二次组阵，用空间谱估计方法实现对各子阵输出期望信号的到达方向（DOA）估计。仿真结果表明：与常规谱估计方法相比，基于二次组阵的DO...
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| 关 键 词： | 二次组阵 空域滤波 DOA估计 MUSIC算法 |
A DOA Estimation Method Based on Secondary Array Combination |
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| GAN Quan,SUN Xue-jun,TANG Bin.A DOA Estimation Method Based on Secondary Array Combination[J].Aerospace Shanghai,2011,28(4):23-26,61. |
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| Authors: | GAN Quan SUN Xue-jun TANG Bin |
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| Institution: | (School of Electronic Engineering, UEST, Chengdu 610054, Sichuan, China) |
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| Abstract: | A direction-of-arrival spectrum estimation method based on the secondary array combination was proposed in this paper. Using the overlap suharrays set in the array, the pattern of the suharray for the specified spatial region was designed to filter the spatial jamming signals and increase the signal interfere noise ratio （SINR） for the desired signal. Based on the locations of the subarrays, the array was secondarily eombinated, and the direction-of-arrivals were estimated with the outputs of the subarrays using the spatial spectrum estimation method in the desired spatial regions. The simulation results showed that the DOA estimation method based on the secondary array combination had decreased the influence to the DOA estimation by the jamming and noise signals, and the estimate accuracy and the anti-jamming ability achieved in the complicated electromagnetic environment were better than regular spatial spectrum estimation method. |
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| Keywords: | Secondary array combination Spatial filtering DOA estimation MUSIC algorithm |
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