| 基于Krylov子空间的测向算法 |
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| 引用本文： | 王进,赵拥军,王志刚.基于Krylov子空间的测向算法[J].计算机工程与应用,2008,44(29):165-167. |
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| 作者姓名： | 王进 赵拥军 王志刚 |
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| 作者单位： | 解放军信息工程大学 信息工程学院，郑州 450002 |
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| 摘 要： | 提出一种基于Krylov子空间的信号波达方向估计算法，搜索信号可能入射角度，通过测试所构造的Krylov子空间与信号子空间的等价性来判断信号的DOA，算法用多级维纳滤波实现子空间分解。仿真实验表明，算法在低信噪比条件下对相邻信号有良好的谱分辨率和估计性能。
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| 关 键 词： | 波达方向估计 Krylov子空间 多级维纳滤波 |
| 收稿时间： | 2007-11-21 |
| 修稿时间： | 2008-2-18
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Signal location method based on Krylov subspace |
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| WANG Jin,ZHAO Yong-jun,WANG Zhi-gang.Signal location method based on Krylov subspace[J].Computer Engineering and Applications,2008,44(29):165-167. |
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| Authors: | WANG Jin ZHAO Yong-jun WANG Zhi-gang |
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| Affiliation: | Institute of Information Engineering，PLA Information Engineering University，Zhengzhou 450002，China |
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| Abstract: | A method of estimating direction of arrival which is based on Krylov subspace is proposed.Since Krylov subspace is equivalent to the signal subspace under some condition,by forming basis depended on incident angle and testing there equivalence,DOA can be obtained.The algorithm is done through multistage Weiner filtering.Simulation shows that the proposed method offers improvements in estimation performance for closely spaced signals. |
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| Keywords: | Direction of Arrival(DOA) estimation Krylov subspace multistage Weiner filtering |
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