Simulation experiments reveal how mesoscale eddies modify acoustic interference patterns, suggesting implications for underwater monitoring.
The interference structure of the underwater acoustic field has significant theoretical and engineering application value in underwater target detection and marine environmental monitoring. The impact of mesoscale eddies on acoustic interference striations remains a significant research gap. Through simulation experiments, the influence of the eddy propagation process on the interference striations of the sound field was studied and analyzed. The first few orders of the interference striations in the spatial domain are more susceptible to the influence of eddies. As a warm eddy gradually propagates away from the source, there is a shift of interference striations in the range–frequency domain toward lower frequencies, while the cold eddy does the opposite. Meanwhile, the arrival structure at a fixed point process undergoes regular changes.
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Shang et al. (2025) studied this question.
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