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The bottom bounce phenomena in the multipath model have been taken into consideration when analyzing an acoustic channel model in this work. First, the changes in sound speed in accordance with temperature and salinity by varying different deep-water depths (100 to 7000 m) has been evaluated. Secondly, the influence of frequency on bottom bounce phenomenon by varying different incident angles has been evaluated. Lastly, at different deep-water depths the effect of bottom bounce on channel model characteristics (transmission losses) have been evaluated. It is evident from simulation results, the effect of critical angle on bottom bounce is negligible at higher frequencies (10 to 100 kHz), and there is a significance impact at lower frequencies (0.1to 10 kHz). As the depth increases from 100 to 7000 m, the transmission losses are reduced by 51.15%.

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Bottom Bounce Analysis of Multipath Acoustic Propagation in Deep Water

  • 会议论文

  • 发表日期：

    2026年

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  • Y. Durga Chandramouli,
  • Rayudu Anusha,
  • Javvadi Parvathi Mangatayaru,
  • Revu Charan hasu,
  • Yeduvaka Mythili,
  • Yallapu Srinivas

摘要

The bottom bounce phenomena in the multipath model have been taken into consideration when analyzing an acoustic channel model in this work. First, the changes in sound speed in accordance with temperature and salinity by varying different deep-water depths (100 to 7000 m) has been evaluated. Secondly, the influence of frequency on bottom bounce phenomenon by varying different incident angles has been evaluated. Lastly, at different deep-water depths the effect of bottom bounce on channel model characteristics (transmission losses) have been evaluated. It is evident from simulation results, the effect of critical angle on bottom bounce is negligible at higher frequencies (10 to 100 kHz), and there is a significance impact at lower frequencies (0.1to 10 kHz). As the depth increases from 100 to 7000 m, the transmission losses are reduced by 51.15%.