论文标题
使用单向波方程建模水下声学传播
Modelling Underwater Acoustic Propagation using One-way Wave Equations
论文作者
论文摘要
本文的主要贡献是表征通过任何介质以及行进的声学信号与周围介质的相互作用的声信号传播。我们将使用阻尼谐波振荡器的概念对培养基和米尔恩的振荡器技术进行建模，以绘制声信号与介质的相互作用。声信号本身将使用以声波和通过介质的声波速度进行的单向波方程进行建模。使用上述概念，我们计算了通信信号的有效信号强度，相移和时间段。生成数值结果以呈现信号强度的演变和在水下环境中接收的信号包膜的演变。
The primary contribution of this paper is to characterize the propagation of acoustic signal carrying information through any medium and the interaction of the travelling acoustic signal with the surrounding medium. We will use the concept of damped harmonic oscillator to model the medium and Milne's oscillator technique to map the interaction of the acoustic signal with the medium. The acoustic signal itself will be modelled using the one-way wave equation formulated in terms of acoustic pressure and velocity of acoustic waves through the medium. Using the above-mentioned concepts, we calculated the effective signal strength, phase shift and time period of the communicated signal. Numerical results are generated to present the evolution of signal strength and received signal envelope in underwater environment.
