Study of Multiaspect and Multistatic Sonar Systems Using a Small-Scale Test Bed
Abstract
With the advancement of navigational systems for autonomous underwater vehicles (AUVs), additional geometries can be considered for synthetic aperture sonar (SAS) and similar line-scan target-scattering analysis techniques. Since SAS signal processing requires that the relationship between the source and receiver be known or corrected to within a fraction of a wavelength, at-sea multistatic SAS is difficult. Until this navigational precision is achieved, these additional geometries can be studied on a reduced scale using precise positioning systems. Given the relative ease of target placement, scaled experiments are ideal for studying the use of multistatic systems for detection and classification of buried targets. The goal of this project is to design and build a test tank at the Naval Surface Warfare Center - Panama City Division (NSWC PCD) and use it to investigate sonar scattering configurations at roughly a scale of 1:50. In addition to studying the impact of multistatic geometries, the data collected will be used to validate finite-element (FE) model simulations, investigate features for automated classification algorithms, test new data processing algorithms for isolating target signals, and investigate target physics. The objective of the second year of this three-year project is to enable and test the use of the small-scale test bed (SSTB) to study scattering by targets proud on the scaled sediment developed in FY09. Once having verified this capability, multistatic measurements of scattering by simple scaled metallic targets will be performed and analyzed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2010
- Accession Number
- ADA542185
Entities
People
- Benjamin R. Dzikowicz
- John Stroud
- Jon La Follett
- Joseph Lopes
- Pat Malvoso
- Raymond J Lim
Organizations
- Naval Surface Warfare Center