Marsh-Schulkin与Rogers模型比对分析

基于实测传播损失数据对比分析Marsh-Schulkin和Rogers经验传播损失模型。通过讨论东海声学调查具体的海洋环境,较详细地标定了两模型对应的声学参数,并融入模型,结合实测数据进行对比验证,得出关于两模型在东海适应性的如下结论:两模型预报结果与实测数据吻合较好,且两者预报曲线大致相同;其中MarshSchulkin模型预报曲线斜率略大于Rogers模型,预报差异随距离增大有所增加;各频率预报曲线存在交点,交点左侧Rogers模型更接近实测数据,右侧Marsh-Schulkin更为准确。

Comparative Analysis of Marsh-Schulkin and Rogers Model

Based on transmission loss data in acoustic experiment, comparative analysis of the Marsh-Schulkin and Rogers models is made. By discussing the real ocean environment during acoustic experiments in the East China Sea,acoustic parameters in two models are analyzed in detail, which are substituted into models, and then validated with experiment data. The following conclusion are obtained： Predicting results of the two models dovetail well with experiment data, and the prediction curves are similar, the slope of Marsh-Schulkin curve is a little bigger than Rogers, and the prediction difference between them increases with distance; an intersection exists between the prediction curves of different frequencies, an the left side of which, Rogers model is closer to experiment data,but Marsh-Schulkin model is more accurate on the right side.