Title :
A model based system for simultaneously estimating bathymetry and sound speed characteristics-simulation results
Author :
Cousins, D.B. ; Miller, J.H.
Author_Institution :
BBN Technol., Middletown, RI, USA
Abstract :
This paper presents an adaptive bathymetric estimation algorithm (ABE) for use with forward-looking hull mounted sonar in shallow water environments. In addition to providing improved positional estimates of ocean bottom contacts in front of the host vehicle, it will automatically estimate and adapt to changes in the local sound speed. Preliminary simulation results are given for a simple two-dimensional encounter of a single bottom contact using an isovelocity, straight line ray model
Keywords :
bathymetry; geophysical techniques; oceanographic techniques; sonar; sonar imaging; underwater sound; acoustic velocity; adaptive bathymetric estimation algorithm; adaptive system; bathymetry; coast; forward-looking hull mounted sonar; geophysical measurement technique; isovelocity straight line ray model; local sound speed; model based system; positional estimate; seafloor topography; shallow water; simulation; single bottom contact; sonar; sonar imaging; sound speed; two-dimensional encounter; Acoustic noise; Covariance matrix; Equations; Gaussian noise; Noise measurement; Oceanographic techniques; Oceans; Sea measurements; Sonar measurements; Sonar navigation;
Conference_Titel :
OCEANS 2000 MTS/IEEE Conference and Exhibition
Conference_Location :
Providence, RI
Print_ISBN :
0-7803-6551-8
DOI :
10.1109/OCEANS.2000.881263
