便携式近程高频地波雷达海流对比试验  

Current comparison experiment for portable short-range high-frequency ground-wave radar

作　　者：赖叶平 王玉皞[1] 周浩[2] 徐新军 LAI Yeping;WANG Yuhao;ZHOU Hao;XU Xinjun(School of Information Engineering,Nanchang University,Nanchang 330031,China;School of Electronic Information,Wuhan University,Wuhan 430072,China;Wuhan Hailan Ruihai Oceanic Technology Co.Ltd.,Wuhan 430223,China)

机构地区：[1]南昌大学信息工程学院,江西南昌330031 [2]武汉大学电子信息学院,湖北武汉430072 [3]武汉海兰瑞海海洋科技有限公司,湖北武汉430223

出　　处：《华中科技大学学报（自然科学版）》2020年第5期32-36,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：高等学校博士后科学基金面上资助项目(2019M652286);国家自然科学基金青年基金资助项目(41906171)。

摘　　要：为了验证便携式近程高频地波雷达的海流观测性能,利用海流计现场观测数据作为参照,分别评估从两个雷达站合成得到的矢量流精度和两个雷达站各自独立测量得到的径向流精度.根据矢量流评估结果,得到流速的均方根误差为10.37 cm/s,流向的均方根误差为15.12°;根据两个雷达站的径向流评估结果,得到其中一个雷达站测得的径向流均方根误差为10.83 cm/s,另一个雷达站的径向流均方根误差则为13.50 cm/s.对两个雷达接收到的海洋回波信号的信噪比进行分析,结果表明两个雷达站的径向流精度差别由回波信噪比引起.To validate the current measurement performance of portable short-range high-frequency ground-wave radar,vector current synthesized from two radar stations and radial current independently obtained from two radar stations were evaluated by comparison with current observations recorded by current meter.The vector currents assessment results indicate that the root-mean-square error value for current velocity is 10.37 cm/s and that for current direction is 15.12°.The radial currents evaluation results show that the root-mean-square error value for one radar station is 10.83 cm/s and 13.50 cm/s for the other radar station.By analyzing the signal to noise ratio of the radar received sea echoes,it is shown that the difference in radial current measurement accuracy exactly results from the difference of the signal to noise ratio of the sea echoes received by the two radars.

关 键 词：高频地波雷达 海洋表面流测量 测流误差 回波信号质量 雷达性能评估 

分 类 号：P715.7:[天文地球—海洋科学]