Sequential Filtering for Surface Wind Speed Estimation from Ambient Noise Measurement

作     者：XIAO Peng YANG Kun-de LEI Zhi-xiong 

作者机构：School of Marine Science and Technology Northwestern Polytechnical University Xi'an 710072 China 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：2017年第31卷第1期

页      面：74-78页

核心收录：

学科分类：07[理学] 082403[工学-水声工程] 070601[理学-气象学] 08[工学] 0706[理学-大气科学] 0824[工学-船舶与海洋工程] 

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.11174235 and 61101192) 

主　　题：particle filtering wind speed noise spectrum level inversion 

摘      要：Many research results show that ocean ambient noise and wind speed are highly relevant, and the surface wind speed can be effectively inverted using ocean noise data. In most deep-sea cases, the ambient noise of medium frequency is mainly determined by the surface wind, and there is a conventional relationship between them. This paper gives an equation which shows this relationship firstly, and then a surface-wind inversion method is proposed. An efficient particle filter is used to estimate the speed distribution, and the results exhibit more focused close to the actual wind speed. The method is verified by the measured noise data, and analysis results showed that this approach can accurately give the trend of sea surface wind speed.