| 宽带波束域高分辨方位估计中波束形成矩阵的选择 |
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| 引用本文： | 智婉君,严胜刚,李志舜.宽带波束域高分辨方位估计中波束形成矩阵的选择[J].声学学报,2002,27(2):133-136. |
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| 作者姓名： | 智婉君 严胜刚 李志舜 |
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| 作者单位： | 1.西北工业大学航海工程学院 西安 710072 |
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| 摘 要： | 波束形成矩阵的计算是波束域高分辨方位估计的关键技术。本文针对宽带源方位估计问题,基于恒定束宽波束形成的概念,将窄带波束域高分辨的有关结论引入宽带中,并从数学上证明了波束数目越少,分辨门限越低,仿真实验验证了文中的结论,表明宽带波束域处理有很好的估计和分辨性能。
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| 收稿时间： | 2000-06-12 |
| 修稿时间： | 2000-11-17 |
On beam-forming matrix in the high resolution direction finding algorithm of wide-band sources |
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| ZHI Wanjun,YAN Shenggang,LI Zhishun.On beam-forming matrix in the high resolution direction finding algorithm of wide-band sources[J].Acta Acustica,2002,27(2):133-136. |
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| Authors: | ZHI Wanjun YAN Shenggang LI Zhishun |
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| Institution: | 1.College of Marine Engineering, North Western Polytechnical University Xi'an 710072 |
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| Abstract: | Beam-space high resolution algorithm for direction finding of wide-band sources is discussed in this paper. Based on the wide-band beam-forming technique, called constant beam-width beam-forming, we present the wide-band model of the direction finding problem, and introduce some conclusions of narrow band processing to wide-band processing. Further more, we prove the relation between beams and the threshold for resolving multi-sources. The simulation results show the beam-space algorithm has good performance. |
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