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将超高频雷达用于海面风向反演,基于正负一阶峰比值与风向的半经验关系提取风向,采用数字波束形成进行方位信息提取,并利用最小二乘多波束法解决风向模糊问题,雷达反演结果与浮标数据相关系数为0.85,均方根误差为25°,在小风速下,超高频雷达风向提取结果与浮标相关系数达0.9,误差为26°.试验结果表明利用超高频雷达监测海面风向具有可行性和有效性.
Based on the semi-experiential relationship between the first-order peak-to-peak wind ratio and the first-order peak-to-peak ratio, the UHF radar is used to extract the wind direction, the digital beamforming is used to extract the bearing information and the wind direction ambiguity problem is solved by least- The correlation coefficient between radar inversion results and buoy data was 0.85 and the root mean square error was 25 °. Under low wind speed, the correlation coefficient between wind direction and UHF radar was 0.9 and the error was 26 °. The experimental results showed that using ultra-high Frequency radar to monitor the wind direction is feasible and effective.