高频地波雷达天线方向图校准方法研究  

Research on the Calibration Method of Antenna Pattern of High Frequency Surface Wave Radar

作　　者：张东亮[1] 王心鹏 王斌[1] 王恒林 ZHANG Dongliang;WANG Xinpeng;WANG Bin;WANG Henglin(National Ocean Technology Center,Tianjin 300112,China;North China Sea Forecast and Disaster Reduction Center,Ministry of Natural Resources,Qingdao 266061,China)

机构地区：[1]国家海洋技术中心,天津300112 [2]自然资源部北海预报减灾中心,山东青岛266061

出　　处：《海洋技术学报》2022年第5期53-59,共7页Journal of Ocean Technology

基　　金：江苏省自然资源发展专项资金资助项目(JSZRHYKJ202009);国家重点基础研究发展计划资助项目(2017YFF0206404);自然资源部经常性业务项目(K5210YJ16)。

摘　　要：高频地波雷达是一种大范围获取海流场的有效手段,已经获得大量应用。为了保障观测数据质量,需要重视设备运行维护环节,其中就包括天线方向图校准。本文首先分析了单频信标天线方向图校准方法相比其他几种校准方法的优点;然后完善了单频信标校准系统,设计了信号频率可调的单频信标,研究并实现了SeaSonde雷达的方向图校准方法;接下来,将新校准系统用于南姜站SeaSonde雷达的天线方向图测量,实测方向图与CODAR应答器测量结果基本一致,通过ADCP与雷达径向流场的比测试验进一步证明校准方法有效;最后总结了使用单频信标校准方法的注意事项。High frequency surface wave radar is an effective means to obtain the sea surface flow field in a wide range,and has been widely used.In order to ensure the quality of observation data,we need to pay attention to the operation and maintenance of radar,including antenna pattern calibration.Firstly,the advantages of single frequency beacon antenna pattern calibration method compared with other calibration methods are analyzed.Then,the existing single frequency beacon calibration system is improved,the new single frequency beacon with adjustable signal frequency is implemented,the antenna pattern calibration method for SeaSonde radar is analyzed and implemented.The new calibration system is used to calibrate the pattern of seasonde′s antenna in Nanjiang station,and the results are basically consistent with CODAR transponder,the calibration method and calibration device is further verified by a comparison of radar measured radial current velocity with acoustic doppler current profiler(ADCP)data.Finally,the precautions for using single frequency beacon calibration method are summarized.

关 键 词：高频地波雷达 单极子交叉环天线 天线方向图 幅相校准 

分 类 号：TN959.72[电子电信—信号与信息处理]