Department of Marine Technology, Ocean University of China, Qingdao 266100, China.
State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
Sensors (Basel). 2022 Jul 18;22(14):5344. doi: 10.3390/s22145344.
Scholte waves at the seafloor have significant potential for underwater detection and communication, so a study about detecting Scholte waves is very meaningful in practice. In this paper, the detection of Scholte waves at the seafloor is researched theoretically and experimentally. Acoustic models with the multilayer elastic bottom are established according to the ocean environment, and a tank experiment is designed and carried out to detect Scholte waves. Different from detecting Scholte waves in the seismic wavefield, a technique for detecting Scholte waves in the sound pressure field is proposed in this paper. The experimental results show that the proposed technique can detect Scholte waves effectively, and there are no problems such as seabed coupling and the effect of wave speeds. Furthermore, the results also show that this detection technique is still effective in conditions with a sediment layer. The existence of sediment layers changes the acoustic field conditions and affects the excitation of Scholte waves.
海底 Scholte 波具有水下探测和通信的巨大潜力，因此对 Scholte 波的探测进行研究具有重要的实际意义。本文从理论和实验两个方面对海底 Scholte 波的探测进行了研究。根据海洋环境建立了具有多层弹性海底的声学模型，并设计和开展了水池实验来探测 Scholte 波。与在地震波场中探测 Scholte 波不同，本文提出了一种在声场中探测 Scholte 波的技术。实验结果表明，该技术可以有效地探测 Scholte 波，并且不存在海底耦合和波速影响等问题。此外，实验结果还表明，在存在沉积层的情况下，该探测技术仍然有效。沉积层的存在改变了声场条件，影响了 Scholte 波的激发。
