Title :
Array shape estimation from sources of opportunity
Author :
Hodgkiss, W.S. ; Gerstoft, P. ; Murray, J.J.
Author_Institution :
Marine Phys. Lab., Scripps Inst. of Oceanogr., San Diego, CA, USA
Abstract :
The radiated signatures of ships transiting through an area can be used as natural sources of opportunity for the estimation of array element locations (AEL) and waveguide environmental parameters (e.g. water column sound speed structure, bathymetry, and seafloor geoacoustic characteristics). Using a full-wave model of shallow water acoustic propagation, a matched field processing approach for AEL is demonstrated with horizontal line array data from SWellEx-96 and extended using a simple parametric representation of the array shape along with a genetic algorithm global search strategy.
Keywords :
oceanographic techniques; seafloor phenomena; underwater acoustic propagation; array element locations; array shape estimation; bathymetry; full wave model; genetic algorithm global search strategy; horizontal line array data; seafloor geoacoustic characteristics; shallow water acoustic propagation; ships; simple parametric representation; water column sound speed structure; waveguide environmental parameters; Acoustic arrays; Acoustic propagation; Acoustic waveguides; Array signal processing; Frequency; Genetic algorithms; Marine vehicles; Sea floor; Sensor arrays; Shape;
Conference_Titel :
OCEANS 2003. Proceedings
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-933957-30-0
DOI :
10.1109/OCEANS.2003.178649
