数字孪生海战场动态声场预报

Dynamic Sound Field Prediction of Digital Twin Sea Battlefield

动态海洋声场预报是水声学重要的一项研究课题,现有的声场预报理论模型难以满足要求,因此结合数字孪生(Digital Twin)对动态海洋声场做出精确预报显得尤为重要。从数字孪生体的模拟角度出发,在虚拟空间对动态海洋声场预报系统进行仿真验证,利用RAM模型对某海域的低频声传播进行模拟,得到复杂海洋环境下的动态声场预报结果,根据实际海洋环境声场预报精度的测试方法,得到利用孪生体模型预报的声传播损失误差有所降低。

Dynamic ocean sound field prediction is an important research topic in underwater acoustics.The existing theoretical model of sound field prediction is difficult to meet the requirements.Therefore,it is particularly important to make an accurate prediction of dynamic ocean sound field combined with digital twin.From the perspective of digital twin simulation,the dynamic ocean sound field prediction system is simulated and verified in virtual space,and the low-frequency sound propagation in a sea area is simulated by RAM model to obtain the dynamic sound field prediction results in complex ocean environment.According to the test method of sound field prediction accuracy in actual ocean environment,it is found that the error of sound propagation loss predicted by twin model is reduced.