Real-time sonar system using acoustic lens and numerical analysis based on 2D/3D parabolic equation method
Real-time sonar system using acoustic lens and numerical analysis based on 2D/3D parabolic equation method
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DOI：
10.1109/oceanse.2005.1511678
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发表时间：
2005-06
期刊：
影响因子：
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通讯作者：
Y. Takase;T. Anada;T. Tsuchiya;N. Endoh;N. Nakamura;T. Tukioka
中科院分区：
文献类型：
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作者：
Y. Takase;T. Anada;T. Tsuchiya;N. Endoh;N. Nakamura;T. Tukioka
为研究海洋环境，研制了安装在前方避障声纳上的自主式水下机器人。为了获得实时、高效、清晰的声学图像，对采用声透镜的实时声纳系统进行了研究。声通过声透镜的传播可以用射线追踪法、波声学或两者的组合来模拟。本文用抛物线方程方法研究了声透镜焦区附近的声压。总之，基于波动声学的声透镜仿真为声透镜制造前的性能预测提供了一种有效的手段。
The autonomous underwater vehicle mounted on the forward obstacle avoidance sonar is developed to investigate ocean environments. In order to obtain real time, high efficiency and clear acoustic images, the real-time sonar system using an acoustic lens has been studied. The propagation of sound through acoustic lenses can be modeled using either the ray-tracing, wave acoustics or a combination of both. In this paper, the sound pressure near the focal area of the acoustic lenses is studied by using the parabolic equation methods. In conclusions, the acoustic lens simulation based on wave acoustics offers a valid means for predictions in the performance of acoustic lenses before fabrication.