Ambient Soundscape and Sound Speed Profilers for Autonomous Vehicles
Abstract
The rapid evolution of the physical properties of the upper ocean expected in regions with strong submesoscale features can lead to complex acoustic propagation effects and in turn modulate the performance of SONAR systems for Anti-Submarine Warfare (ASW) purposes . However, limited in-situ observations of this rapid evolution make it unclear how to adequately parametrize these physical propert ies of the upper ocean based on the environmental variables. In this proposal, we will develop a novel acoustic instrumentation pack age, the Towed Acoustic Modules for Autonomous Surface Vehicles (TAM-ASV), specifically designed for deployment on uncrewed surface vehicles, and capable of characterizing the modulation of sound speed and ambient soundscape caused by surface and upper-ocean proce sses. Combined with the air-sea interaction observing capability already available on the PI Lenains fleet of autonomous surface ve hicles, the TAM-ASVs will enable the development of parameterizations of these acoustic variables in the upper ocean through direct observations of collocated wave breaking dissipation and bubbles/void fraction. This abstract is publicly releasable.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 20, 2021
- Source ID
- N000142112818
Entities
People
- Luc Lenain
Organizations
- Office of Naval Research
- United States Navy
- University of California, San Diego