| 采用便携式天线的近海海洋表面流探测 |
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| 引用本文： | 陈江,吴雄斌,文必洋,程丰,高火涛.采用便携式天线的近海海洋表面流探测[J].武汉大学学报(理学版),2005,51(1):105-108. |
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| 作者姓名： | 陈江 吴雄斌 文必洋 程丰 高火涛 |
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| 作者单位： | 武汉大学,电子信息学院,湖北,武汉,430072 |
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| 基金项目： | 国家自然科学基金资助项目(60201003) |
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| 摘 要： | 针对高频地波雷达天线阵通常十分庞大的问题，根据海洋回波理论，利用单个到达角海洋回波进行雷达通道幅度相位的自校准，应用适合便携式天线系统的信源估计方法，采用MUSIC(MUltiple Slgnal C1assification)算法反演海流信息，研究了交叉环／单极子天线在高频地波雷达近海海洋表面流探测中的应用，将探测结果与采用相控阵接收的高频地波雷达OSMAR2000的探测结果进行对比，径向流速平均偏差为1．3cm／s,说明近海海洋表面流探测采用便携式的小天线可取得与传统相控阵相同的效果.
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| 关 键 词： | 高频地波雷达 交叉环／单极子天线 海洋表面流 MUSIC |
| 文章编号： | 1671-8836(2005)01-0105-04 |
| 修稿时间： | 2004年5月18日 |
Ocean Surface Current Detection by HF Ground Wave Radar with Portable Antenna System |
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| CHEN Jiang,WU Xiong-bin,Wen Bi-yang,CHENG Feng,GAO Huo-tao.Ocean Surface Current Detection by HF Ground Wave Radar with Portable Antenna System[J].JOurnal of Wuhan University:Natural Science Edition,2005,51(1):105-108. |
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| Authors: | CHEN Jiang WU Xiong-bin Wen Bi-yang CHENG Feng GAO Huo-tao |
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| Abstract: | HF ground radar is characterized by its large antenna system.According to the theory of sea echoes,this paper studies the application of crossed-loop/monopole antenna in ocean surface current detection by HF ground wave redar.Amplitude and phase calibration of receiving channels by single arriving sea echoes is applied first,then unique sourec number estimation suitable for the compact antenna system is discussed,and MUSIC (MUltiple SIgnal Classification) algorithm is proposed to apply in surface current mapping.Verification tests are carried out by comparing the radial current results with that detected by OSMAR2000,a HF ground wave radar system adopts phased array.The bias of radial current velocity is (1.3) cm/s.The results show that the compact crossed-loop/monopole antenna is equivalent with the traditional phased array in ocean surface currents detection. |
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| Keywords: | HF ground wave radar crossed-loop/monopole sea surface current MUSIC |
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