Sound propagation in two-axis underwater channel based on beam-displacement ray-mode theory

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Sound propagation in two-axis underwater channel based on beam-displacement ray-mode theory

机译：基于光束位移射线模理论的两轴水下声传播

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摘要

Sound propagation in a deep ocean two-axis underwater channel is often complex and difficult to simulate between surface channel and sound fixing and ranging (SOFAR) channel. The beam-displacement ray-mode (BDRM) theory is a normal mode method for propagation modeling in horizontally stratified shallow water. An improved method for computing the upper boundary reflection coefficient in the BDRM is proposed and applied to calculate the acoustic fields of a two-axis underwater channel. Transmission losses in the two-axis underwater channel are calculated in the new BDRM. The corresponding results are in good agreement with those from the Kraken code, and furthermore the computed speed of the new BDRM excels the other methods.

机译：在深海两轴水下通道中的声音传播通常很复杂，并且很难在水面通道与声音固定和测距（SOFAR）通道之间进行模拟。束位移射线模式（BDRM）理论是在水平分层浅水中进行传播建模的常规模式方法。提出了一种在BDRM中计算上边界反射系数的改进方法，并将其应用于计算两轴水下通道的声场。在新的BDRM中计算了两轴水下通道的传输损耗。相应的结果与Kraken代码中的结果非常吻合，此外，新BDRM的计算速度优于其他方法。

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《中国海洋湖沼学报（英文版）》 |2007年第3期|300-303|共4页
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作者单位

Underwater Acoustics Data Center, Navy Submarine Academy, Qingdao 266003, China;

Underwater Acoustics Data Center, Navy Submarine Academy, Qingdao 266003, China;

Underwater Acoustics Data Center, Navy Submarine Academy, Qingdao 266003, China;

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 chi
中图分类海洋学;
关键词
two-axis underwater channel; BDRM theory; reflection coefficient; phase-shift correction;

机译：二轴水下通道;BDRM理论;反射系数;相移校正;

Sound propagation in two-axis underwater channel based on beam-displacement ray-mode theory

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