西太平洋远程脉冲声传播实验数据分析

发布时间：2018-07-24 12:08

【摘要】：2013年7月在西太平洋进行了一次远程声传播实验.实验使用水下150 m深的拖曳线列阵接收水下125 m深拖曳换能器发射的线性调频声信号(频带范围260 360 Hz),记录了收发距离为34 220 km,612 635 km和926 1029 km等三处的声传播数据;同时用锚系的深水垂直阵潜标接收了水下1000 m深度爆炸的爆炸声信号,最远传播距离达943 km.本文对上述远程脉冲声传播数据进行了分析,获得了深海远程会聚区传播损失曲线、深海声道传播损失及其随接收深度变化曲线,并使用PE模型和射线模型对上述远程脉冲声传播现象进行了理论分析和解释.
[Abstract]:A long-range sound propagation experiment was conducted in the western Pacific in July 2013. In the experiment, a towed line array with a depth of 150m is used to receive the LFM acoustic signals emitted by the 125m deep towed transducer (the frequency band range is 260km ~ 360 Hz),). The data of sound propagation at the receiving and transmitting distance of 34,220km2 612kmt 635km and 926m 1029 km have been recorded in the experiment. At the same time, the underwater explosion sound signal of 1000 m depth explosion is received by the underwater vertical array submersible with anchor system, and the maximum propagation distance is 943 km. In this paper, the transmission loss curve of the deep sea remote convergence area, the propagation loss of the deep sea sound channel and its variation with the receiving depth are obtained by analyzing the above data. Using PE model and ray model, the phenomenon of sound propagation in long range pulse is analyzed and explained theoretically.
【作者单位】：中国科学院声学研究所声场声信息国家重点实验室;中国科学院大学;
【基金】：国家自然科学基金(编号:11174312,11434012) 海洋公益性行为科研专项经费(编号:201405032)资助项目
【分类号】：P733.2

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