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• W4385992382 abstract "Acoustic propagation models are widely used in numerous oceanic and underwater applications. Most conventional models are approximate solutions of the acoustic wave equation, and require accurate environmental knowledge to be available beforehand. Environmental parameters may not always be easily or accurately measurable. While data-driven techniques might allow us to model acoustic propagation without the need for extensive prior environmental knowledge, such techniques tend to be data-hungry and often infeasible in oceanic applications where data collection is difficult and expensive. We propose a data-aided physics-based high-frequency acoustic propagation modeling approach that enables us to train models with only a small amount of data. The proposed framework is not only data-efficient, but also offers flexibility to incorporate varying degrees of environmental knowledge and generalizes well to permit extrapolation beyond the area where the data were collected. We demonstrate the feasibility and applicability of our method through four numerical case studies, and one controlled experiment. We also benchmark our method's performance against two classical data-driven techniques—Gaussian process regression and deep neural network." @default.
• W4385992382 created "2023-08-19" @default.
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• W4385992382 date "2023-10-01" @default.
• W4385992382 modified "2023-10-15" @default.
• W4385992382 title "Data-Aided Underwater Acoustic Ray Propagation Modeling" @default.
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• W4385992382 doi "https://doi.org/10.1109/joe.2023.3292417" @default.
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