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- W1566752924 abstract "Abstract : The propagation of mid-frequency (1-10 kHz) acoustic waves in shallow water regions (depths of 100-200 m) is strongly influenced by the characteristics of the ocean bottom. While there has been much progress in developing and validating bottom scattering models, much of the focus has been in the high frequency regime with comparatively less focus in the mid-frequency. This is an important topic, since in the mid-frequency regime the acoustic field can penetrate the rough interface into the sediment and undergo multiple scattering from sediment stratification and volume inhomogeneities. In this work, the long-term goal is to develop an understanding of the spatial and temporal characteristics of the acoustic field through a rigorous modeling and measurement effort. In addition, the feasibility of using tools such as a chirp sonar for bottom characterization will be considered and assessed. The objective of this research is to examine the acoustic scattering physics in the mid-frequency regime to isolate and characterize the scattering contributions due to bottom roughness, sediment stratification, and embedded volume scatterers. A further objective is to evaluate the use of a chirp sonar system for characterization of the ocean bottom. This will provide a means for accurately quantifying parameters such as reflection losses and bottom penetration over a broad frequency range in support of Navy sonar applications." @default.
- W1566752924 created "2016-06-24" @default.
- W1566752924 creator A5089601387 @default.
- W1566752924 date "2008-09-30" @default.
- W1566752924 modified "2023-09-28" @default.
- W1566752924 title "Mid-Frequency Bottom Scattering Model Development And Validation" @default.
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- W1566752924 doi "https://doi.org/10.21236/ada533158" @default.
- W1566752924 hasPublicationYear "2008" @default.
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