Advanced Three-Dimensional Sound Propagation Modeling and Data Analysis
Abstract
Approved for Public ReleaseAcoustic waves can efficiently propagate in the water and enable many underwater technologies for communication, environmental surveys, target detection, classification, localization and tracking (DCLT), and many other applications. However, underwater sound propagation in the ocean can be affected by many environmental factors. In order to assert the performance of underwater acoustic technologies, the effects of ocean environmental variabilities need to be taken into account when analyzing the acoustic signals. Thus, the primary research objective of this proposal is to investigate three-dimensional (3D) acoustic propagation and scattering effects of the following environmental factors with theoretical, numerical and data analyses approaches: (1) water column sound speed variability, (2) surface waves, (3) bathymetric variations, (4) seafloor roughness, (5) irregular sub-bottom layering structure, and (6) ice covers. Specifically, the scientific goals of the proposed research include: A.Developing advanced 3D acoustics models; B.Investigating 3D sound propagation and scattering effects;C.Studying 3D surface scattering effects;D.Ultimately developing a framework for acoustic data assimilation modeling.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 05, 2021
- Source ID
- N000142112416
Entities
People
- Ying-Tsong Lin
Organizations
- Office of Naval Research
- United States Navy
- Woods Hole Oceanographic Institution