基于实测海洋环境噪声谱级的风速反演研究  

Research on Wind Speed Retrieval Using Measured Ocean Ambient Noise Spectrum Level

作　　者：魏永星[1] 李国富[1] 常哲[1] 于金花[1] WEI Yongxing;LI Guofu;CHANG Zhe;YU Jinhua(National Ocean Technology Center,Tianjin 300112,China)

机构地区：[1]国家海洋技术中心,天津300112

出　　处：《海洋技术学报》2022年第6期41-48,共8页Journal of Ocean Technology

基　　金：国家自然科学基金资助项目(11904064)。

摘　　要：利用海洋环境噪声数据反演风速特征是目前海洋领域的研究热点之一。本文以南海获得的94 d实测海洋环境噪声数据为基础,研究100 Hz、200 Hz、500 Hz、800 Hz、1000 Hz、2000 Hz、4000 Hz、8000 Hz等中心频点的噪声谱级特性,结合对应的风速数据,对海洋环境噪声数据进行相关、回归分析,研究结论表明:1000 Hz以上频段对应的海洋环境噪声谱级与风速相关程度较高,基本不随深度发生较大变化;利用海洋环境噪声谱级反演海面风速的误差结果随着频率的增加而减小,利用1000 Hz以上的频率进行海面风速反演,可以得到比较准确的结果。The use of marine environmental noise data to invert wind speed characteristics is one of the current research hotspots in the field of marine workers.Based on the 94-day measured marine environmental noise data obtained in south sea area,this paper studies the100 Hz,200 Hz,500 Hz,800 Hz,1000 Hz,2000 Hz,4000 Hz,8000 Hz and other center frequency noise spectral level characteristics,combined with the corresponding wind speed data,correlation and regression analysis of marine environmental noise data,the conclusion shows that:above 1000 Hz corresponding to the marine environment frequency band.The noise spectrum level is highly correlated with wind speed,and basically does not change greatly with depth;the error result of using the marine environment noise spectrum level to invert the sea surface wind speed decreases with the increase of frequency,and the frequency above 1000 Hz is used to calculate the sea surface wind speed Inversion,more accurate results can be obtained.

关 键 词：海洋环境噪声 风速 回归 反演 

分 类 号：TN912.16[电子电信—通信与信息系统]