OSMAR波束中心区域的定向误差分析  

Analyzing of Direction-Finding Error within the Center of Wave-beam in Ocean State Measuring & Analyzing Radar

作　　者：宋婷[1] 吴雄斌[2] 

机构地区：[1]成都信息工程学院 通信工程系,四川成都610225 [2]武汉大学 电子信息学院,湖北武汉430079

出　　处：《计算机测量与控制》2007年第4期452-454,500,共4页Computer Measurement &Control

基　　金：国家863计划资助项目(863-818-01-02);国家自然科学基金(60201003)。

摘　　要：高频地波雷达探测海流的过程中,产生海流测量误差的影响因素有很多;文中提出了定向误差系数的概念,通过实测数据计算和分析了定点OSMAR的流速测量误差与该点定向误差系数的相关性,结果表明雷达的定向误差是雷达海流测量误差的重要来源;并计算出了OSMAR波束覆盖的中心区域上,雷达的定向偏差在1°左右;该结论对于提高高频地波雷达测量准确度具有直接的指导意义。During the course of measuring sea surface current by HFSW, there are lots of elements resulting in the error of radial current velocity. A new concept of direction--finding error coeffieientis is proposed. Meanwhile, the correlation between direction--positioning error and the error of ocean curent radial velocity measured by OSMAR is also discussed. And, some conclusions are drawn from the above researches. First, the direction-positioning error is an important source that results in the error of ocean current radial velocity. Second, within the center field of the ocean covered by the OSMAR beam, the direction--finding angle error is 1 degree. The conclusions are important in improving the measurement precision of ocean current radial velocity for OSMAR and they give direct guidance to the associated studies.

关 键 词：OSMAR 定向误差 误差系数 高频地波雷达 径向流 

分 类 号：TN957.52[电子电信—信号与信息处理]