华中科技大学学报（自然科学版）2017，Vol.45Issue(4)：102-106,5.DOI:10.13245/j.hust.170419
超高频雷达系统海面风向反演试验研究
Experimental research on inversion of ocean surface wind direction with UHF radar system
摘要
Abstract
Ultra high frequency (UHF) radar was used for inversion of ocean wind direction.Wind direction was derived based upon the ratio of the approach-recede first-order Bragg lines.The angle information was extracted after digital beam-forming,and multi-beam least squares method was applied to eliminate ambiguity to determine reasonable wind direction.Over one week,the radar-derived wind direction was highly correlated with buoy data,with coefficient of 0.85 and the root mean square error of about 25°.In addition,while under small wind speed,the correlation coefficient and root mean square error of radar and buoy is 0.9 and 26°,respectively.The experimental results show that it is feasible and effective to monitor sea surface wind direction by UHF radar.关键词
超高频雷达/最小二乘法/风向/模糊性/数字波束形成Key words
ultra high frequency radar/least square method/wind direction/ambiguity/digital beam forming分类
信息技术与安全科学引用本文复制引用
文必洋,李艳,侯义东,韩金柱..超高频雷达系统海面风向反演试验研究[J].华中科技大学学报（自然科学版）,2017,45(4):102-106,5.基金项目
国家自然科学基金资助项目(61371063) （61371063）
国家重大科学仪器开发专项资助项目(2013YQ160793). （2013YQ160793）
