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Effect of Emergence Angle on Acoustic Transmission in a Shallow Sea
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Effect of Emergence Angle on Acoustic Transmission in a Shallow Sea
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Effect of Emergence Angle on Acoustic Transmission in a Shallow Sea
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Journal Article
Effect of Emergence Angle on Acoustic Transmission in a Shallow Sea
2020
Overview
In this study, the effect of the emergence angle of a source array on acoustic transmission in a typical shallow sea is simulated and analyzed. The formula we derived for the received signal based on the Normal Mode indicates that the signal is determined by the beamform on the modes of all sources and the samplings of all modes at the receiving depth. Two characteristics of the optimal emergence angle (OEA) are obtained and explained utilizing the aforementioned derived formula. The observed distributions of transmission loss (TL) for different sources and receivers are consistent with the obtained characteristics. The results of this study are valuable for the development and design of active sonar detection.
Publisher
Polish Academy of Sciences,Institute of Fundamental Technological Research Polish Academy of Sciences
