For an acoustic receiver deployed at the bottom of the direct arrival zone of a submerged source at short horizontal ranges in deep ocean, the interference pattern of the direct and surface-reflected acoustic arrivals shows periodic modulation, which is directly related to the source depth, source frequency, and vertical arrival angle. In this work, the interference cycle presented in the frequency domain is used to extract the broadband source depth, with the vertical arrival angle obtained from the ratio of vertical acoustic intensity and horizontal acoustic intensity from the signal recorded by a single vector sensor. Experimental results demonstrate the source depth estimation without requiring knowledge of the ocean environment.

中文翻译：

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使用单个矢量传感器估算深海中的无源宽带源深度。

对于部署在深海中短距离水平范围内的淹没源直接到达区域底部的声波接收器，直接和表面反射声波到达的干扰方向图显示出周期性调制，这与声源深度直接相关，源频率和垂直到达角。在这项工作中，在频域中出现的干扰周期用于提取宽带源深度，其垂直到达角是从单个矢量传感器记录的信号的垂直声强与水平声强之比获得的。实验结果证明了在不需要了解海洋环境的情况下进行源深度的估算。