论文部分内容阅读
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.
A long-distance acoustic propagation experiment was conducted in the Western Pacific in July 2013. Experiments were conducted using a towed line array at a depth of 150 m under water to receive chirp signals emitted by a towed underwater 125 m tow transducer (band 260-360 Hz ), The acoustic propagation data were recorded at three transmitting and receiving distances of 34-220 km, 612-635 km and 926-1029 km. At the same time, deep-sea vertical array submarines were used to receive explosions of explosions at a depth of 1000 m Signal, the farthest propagation distance is 943 km.This paper analyzes the long-distance impulsive sound propagation data, obtains the propagation loss curve of deep-sea remote convergence zone, the propagation loss of deep-sea channel and its curve with receiving depth, and uses PE model and The ray model makes a theoretical analysis and explanation of the above phenomenon of long-distance pulse sound transmission.