一种计算航船对近海海洋环境噪声贡献的算法

为了研究浅海中低频段的海洋环境噪声，文章构建了一种计算航船对近海海洋环境噪声贡献的算法，利用某海域航船信息，结合实际水文参数，对该海域的航运噪声进行了仿真计算。航船信息通过访问船舶自动识别系统数据库获取。主要关注50~400 Hz的中低频段，将仿真计算结果和实验数据进行对比，验证了算法的可靠性，并进行了误差分析。利用该算法可获取接收点处航船噪声的水平方向分布特点，并可初步定量分析航船噪声对海洋环境噪声的贡献。

An algorithm for calculating the contribution of ship noise to offshore ambient noise

To study the offshore ambient noise in the mid and low frequency band, an algorithm for calculating the contribution of ship noise to the offshore ambient noise is constructed, and the ship noise in a certain sea area is simulated by using the ship information and combining with the actual hydrological parameters. The ship information is obtained by accessing the ship automatic identification system (AIS) database. The ambient noise in the mid and low frequency band of 50~400 Hz is mainly concerned. The simulation results are compared with experimental data to verify the reliability of the algorithm, and the error analysis is made. By using this algorithm, the horizontal distribution of ship noise at the receiving point can be obtained, and the con-tribution of ship noise to offshore ambient noise can be preliminarily quantitatively analyzed.