一种海洋环境噪声估计风速的修正法

基于按风速分段法反演风速的研究,提出了一种海洋环境噪声估计风速的修正方法。该方法考虑了不同海域不同水声传播条件对风关环境噪声的影响,兼有判别雨、船等噪声源的功能。利用所提出修正法对中国近海某海域实测数据的处理表明,它可适用于不同海域,具有较好的鲁棒性。在有应用意义的中风速段(15 m/s> v >6 m/s)和高风速段(v> 15 m/s),该方法反演风速的误差不超过15%,小于WOTAN法反演风速的误差。修正法为海洋环境噪声实时反演风速系统应用于近海不同海域提供了良好的基础。

A modified method of evaluating wind speed by ocean ambient noise

Based on study of multi-section wind inversion, a modified method is proposed for evaluation of wind speed by ocean ambient noise. The different ocean areas and propagation conditions have effects on wind-generated noise. In modified method experimental data from an offshore area in china indicate that this method is robust for different ocean areas. In middle (15 m/s > v >6 m/s) and high (v > 15 m/s) wind speed sections, both errors the of modified method are less than 15% and lower than WOTAN's. The modified method establishes the foundation for real-time evaluating wind speed by ocean ambient noise in different ocean areas.