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Opportunity at Naval Research Laboratory (NRL)

Value-added Localization with Noise

Location

Naval Research Laboratory, DC, Acoustics

RO# Location
64.15.04.C0568 Washington, DC 203755321

Advisers

Name E-mail Phone
Gemba, Kay L kay.gemba@nrl.navy.mil 202.404.4839

Description

The Navy relies on physics-informed, passive approaches to learn about the regional oceanography at a receiver. Of particular interest are data-driven through-the-sensor signal processing approaches which exploit the dominant, acoustic energy radiated by uncontrolled, broadband surface vessel. These sources are used to estimate sea-floor depth, bottom parameters, and the sound speed structure in the water column. Near-term research contributions include, but are not limited to, understanding the information content of noise, influential oceanographic processes, source dynamics, and optimal sensor configuration. Long-term efforts include contributions to developing data-assimilation models including Bayesian approaches to estimating environmental parameters. 

Reference:

Gemba, K. L., Sarkar, J., Cornuelle, B., Hodgkiss, W. S., & Kuperman, W. A. (2018). Estimating relative channel impulse responses from ships of opportunity in a shallow water environment. J. Acoust. Soc. Am., 144(3), 1231–1244. 

Keywords:
signal processing; acoustics; oceanography; inverse theory; physics; machine learning; detection; noise; sources of opportunity

Eligibility

Citizenship:  Open to U.S. citizens and permanent residents
Level:  Open to Postdoctoral applicants

Stipend

Base Stipend Travel Allotment Supplementation
$87,198.00 $3,000.00
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