Near-field/far-field source localization in ocean with an acoustic vector sensor array using polynomial rooting

V. N. Hari, Xionghu Zhong, A. B. Premkumar
2013 2013 Ocean Electronics (SYMPOL)  
In this paper, we consider the problem of three-dimensional (3D -azimuth, elevation/depth and range) localization of a single acoustic source using an array of acoustic vector sensors (AVS). Localization algorithms such as multiple signal classification (MUSIC) require a 3D search over the location parameter space which is computationally expensive. Several methods have been proposed based on arrays of acoustic pressure sensors (APS) [1], [2] which simplified this search to polynomial rooting
more » ... R) combined with a 2D search in the range-elevation/depth space. However, the computational complexity remains high for such methods since 2D search is involved. We present a method to localize a source with an array of AVS via a decoupled estimation of azimuth, and a 1D range search combined with PR to estimate the elevation/depth. This is computationally simpler than, and performs as well as PR with 2D searching and 3D MUSIC.
doi:10.1109/sympol.2013.6701945 fatcat:pf424yrn3bdebicbkirqr2aeve