| Application of ESPRIT in Broad Beam HF Ground Wave Radar Sea Surface Current Mapping |
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| 作者姓名： | LiuDan-hong WuXiong-bin WenBi-yang ChengFeng |
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| 作者单位： | SchoolofElectronicInformation,WuhanUniversity,Wuhan430072,Hubei,China |
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| 基金项目： | SupportedbytheNationalNaturalScienceFoundationofChina (60 2 0 1 0 0 3)andtheNationalHighTechnologyDevelopment863ProgramofChina(863 81 8 0 1 0 2 ) |
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| 摘 要： | HF surface wave radar system OSMAR2000 is a broad-beam sea-state detecting radar.ESPRIT (Estimation of Signal Parameters via Rotational Invariance Technique) algorithm is proposed to apply in DOA (direction of arrival) determination of sea echoes.The algorithm of ESPRIT is briefly introduced first.Then discussions are made on the technique for application in the OSMAR2000 framework.Numerical simulation results are presented to demonstrate the feasibility of radial current mapping based on this method.The algorithm manifests significant performance and computational advantages compared with that of MUSIC.Data acquired by OSMAR2000 are processed to give radial current map and the synthesized vector currents are compared with the in-situ measurement with traditional means.The results show the validity of ESPRIT application in DOA determination for broad-beam radar.
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| 关 键 词： | ESPRIT 宽束HF表面波雷达 旋转不变信号参数估计算法 海面回波 数值模拟 |
| 收稿时间： | 19 May 2003 |
Application of ESPRIT in broad beam HF ground wave radar sea surface current mapping |
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| LiuDan-hong WuXiong-bin WenBi-yang ChengFeng.Application of ESPRIT in Broad Beam HF Ground Wave Radar Sea Surface Current Mapping[J].Wuhan University Journal of Natural Sciences,2004,9(2):209-214. |
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| Authors: | Liu Dan-hong Wu Xiong-bin Wen Bi-yang Cheng Feng |
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| Institution: | (1) School of Electronic Information, Wuhan University, 430072 Wuhan, Hubei, China |
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| Abstract: | HF surface wave radar system OSMAR2000 is a broad-beam sea-state detecting radar. ESPRIT (Estimation of Signal Parameters via Rotational Invariance Technique) algorithm is proposed to apply in DOA (direction of arrival) determination of sea echoes. The algorithm of ESPRIT is briefly introduced first. Then discussions are made on the technique for application in the OSMAR2000 framework. Numerical simulation results are presented to demonstrate the feasibility of radial current mapping based on this method. The algorithm manifests significant performance and computational advantages compared with that of MUSIC. Data acquired by OSMAR2000 are processed to give radial current map and the synthesized vector currents are compared with the in-situ measurement with traditional means. The results show the validity of ESPRIT application in DOA determination for broad-beam radar. |
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| Keywords: | HF ground wave radar sea surface current ESPRIT MUSIC |
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