3P-62 実海域試験における周囲雑音イメージングに適用する音響レンズの集束特性解析(ポスターセッション)

概要

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In this study, the aspherical lens with the aperture diameter of 1.0 m was designed for the actual ocean experiment of AM. The analysis results using the 3-D FDTD method suggested that the designed lens has fine directional resolution over the center frequency of 120 kHz. We have a plan to measure the directionality of the designed lens on an actual ocean experiment in Uchiura Bay on November of 2010. It will be verified that the ANI system with this lens realizes the directional resolution which is the beam width of 1° over 120 kHz. We also have another plan to conduct the experiment of target imaging under snapping shrimp dominant noises using this lens system.
2010-12-06