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Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

2019

Portland State University

Series

Acoustical engineering

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Full-Text Articles in Engineering

Environmental Information Content Of Ocean Ambient Noise, Martin Siderius, John Thomas Gebbie Sep 2019

Environmental Information Content Of Ocean Ambient Noise, Martin Siderius, John Thomas Gebbie

Electrical and Computer Engineering Faculty Publications and Presentations

In recent years, methods have been developed to estimate a variety of environmental parameters based on measurements of the ocean ambient noise. For example, noise has been used to estimate water depth using the passive fathometer technique and bottom loss estimated and used to invert for seabed parameters. There is also information in the noise about the water column sound speed, volume attenuation, and the sea-state. The Fisher information can be used to quantify the basic information available in the noise measurements and its inverse, the Cramér–Rao lower bound (CRLB), provides the lower limit on the variance of an ...