CAJ | 학술논문

介绍了单参数模型，提出以小掠射角下反射损失随掠射角的变化率FdB作为描述海底性质的单参数，并分析研究了该海底单参数模型的适用性，分析得到，当频率不低于数十赫兹且海底沉积物类型属于高声速海底时，单参数模型可以用来描述海底性质。还研究了海水声速对于海底单参数模型描述水下声场的适用性的影响，结果表明，当海水声速剖面可以近似等效为均匀水层时，可用海底单参数模型对水下声场进行预报应用。
개소료단삼수모형，제출이소략사각하반사손실수략사각적변화솔FdB작위묘술해저성질적단삼수，병분석연구료해해저단삼수모형적괄용성，분석득도，당빈솔불저우수십혁자차해저침적물류형속우고성속해저시，단삼수모형가이용래묘술해저성질。환연구료해수성속대우해저단삼수모형묘술수하성장적괄용성적영향，결과표명，당해수성속부면가이근사등효위균균수층시，가용해저단삼수모형대수하성장진행예보응용。
A single parameter seabed model is introduced in this paper, the slope of bottom loss versus grazing angle FdB (dB/radian) is proposed as the single parameter to describe the characteristics of sea bottom. The suitability of the single parameter seabed model is discussed. The single parameter model could be applied to describe the properties of high speed seabed when the frequency is more than tens of Hertz. The model’s applicability for underwater acoustic field prediction is also analyzed. The results show that when the sound speed profile could be equivalent to the homogeneous profile, the single parameter seabed model can be applied to predicting the underwater acoustic field.