Generation of Synthetic SAS Data for Targets Near the Seafloor: Propagation Component
Abstract
In the final year of this project, the primary objective was the application of the propagation model to synthetic aperture sonar simulations and simulations for scattering within a homogeneous waveguide. Refinements to image source enumeration were implemented to ensure that time-of-flight wave packets, associated with an image source, arrive at a receiver location within a time window of interest. The wave propagation model developed during FY11-12 was applied to several scattering problems, which included both waveguide simulations (i.e., reflections from upper and lower boundaries) and reduced half-space simulations (i.e., only interactions with a water-sediment interface). For the scattering problems, there are two wave propagation processes: (1) propagation from an image source to a target location, and (2) propagation from the target location to an image receiver. During step (1), the target location acts has a virtual receiver, and after the scattering process the target location becomes a virtual source. Thus, the refinement to the image source enumeration applies to the image receiver enumeration.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2013
- Accession Number
- ADA599019
Entities
People
- Steven G. Kargl
Organizations
- University of Washington