Title :
A piecewise matched-field tracking algorithm
Author :
Wilmut, Michael J. ; Ozard, John M. ; O´Keefe, Kyle ; Musil, Martin
Author_Institution :
Dept. of Math. & Comput. Sci., R. Mil. Coll. of Canada, Kingston, Ont., Canada
fDate :
7/1/1998 12:00:00 AM
Abstract :
Matched-field tracking (MFT) algorithms have been successfully applied to both simulated and measured data to determine the most likely positions of a sound source that is localized ambiguously by a matched-field processing (MFP) system. They have been used to track sources moving linearly or on a circular path at constant speed and heading. The input to the trackers is a set of ambiguity surfaces, contiguous in time, generated by MFP. These algorithms assume that the track start and end times are known a priori; this restriction is removed in the piecewise MFT algorithm (PTA). The PTA was applied to narrow-band measured data collected during the PACIFIC SHELF 93 trial to successfully identify the significant source track segments
Keywords :
bathymetry; direction-of-arrival estimation; geophysical signal processing; oceanographic techniques; sonar signal processing; sonar tracking; tracking filters; underwater sound; Bartlett beamformer; PACIFIC SHELF 93 trial; acoustic field; bathymetry; circular path moving sources; linearly moving sources; matched-field processing system; narrow-band measured data; ocean acoustics; piecewise matched-field tracking algorithm; set of ambiguity surfaces; source track segments; Acoustic measurements; Acoustic propagation; Combinatorial mathematics; Narrowband; Position measurement; Predictive models; Region 1; Sea surface; Statistics; Target tracking;
Journal_Title :
Oceanic Engineering, IEEE Journal of
