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arXiv 2202.06559eess.SP
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用单向式波动方程模拟水下声传播

Modelling Underwater Acoustic Propagation using One-way Wave Equations

Indrakshi Dey

摘要:

本文的主要贡献是描述携带信息的声信号通过任何介质的传播以及行进声信号与周围介质的相互作用。我们将使用阻尼谐振子的概念来模拟介质和米尔恩的振荡器技术来映射声信号与介质的相互作用。声信号本身将使用根据通过介质的声波的声压和速度而制定的单向式波动方程来建模。利用上述概念,我们计算了通信信号的有效信号强度、相移和时间周期。数值计算结果给出了水下环境中信号强度和接收信号包络的演变过程。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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