Closed-form underwater acoustic direction-finding with arbitrarily spaced vector hydrophones at unknown locations
- 1 July 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Oceanic Engineering
- Vol. 22 (3) , 566-575
- https://doi.org/10.1109/48.611148
Abstract
This paper introduces a novel ESPRIT-based closed- form source localization algorithm applicable to arbitrarily spaced three-dimensional arrays of vector hydrophones, whose locations need not be known. Each vector hydrophone consists of two or three identical but orthogonally oriented velocity hydrophones plus one pressure hydrophone, all spatially co-located in a point-like geometry. A velocity hydrophone measures one Cartesian component of the incident sonar wavefield's velocity-vector, whereas a pressure hydrophone measures the acoustic wavefield's pressure. Velocity-hydrophone technology is well established in underwater acoustics and a great variety of commercial models have long been available. ESPRIT is realized herein by exploiting the nonspatial inter-relations among each vector hydrophone's constituent hydrophones, such that ESPRIT's eigenvalues become independent of array geometry. Simulation results verify the efficacy and versatility of this innovative scheme. Aspects of this underwater acoustic algorithm are analogous to Li's earlier work with diversely polarized antennas.Keywords
This publication has 20 references indexed in Scilit:
- Initial Analysis Of The Data From The Vertical DIFAR ArrayPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Orthogonal velocity-hydrophone ESPRIT for sonar source localizationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- ESPRIT-based extended-aperture source localization using velocity-hydrophonesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Acoustic vector-sensor beamforming and Capon direction estimationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Identifiability in array processing models with vector-sensor applicationsIEEE Transactions on Signal Processing, 1996
- The ambient noise energy motion in the near-surface layer in ocean wave-guideJournal de Physique IV, 1994
- Acoustic vector-sensor array processingIEEE Transactions on Signal Processing, 1994
- Adaptive eigendecomposition of data covariance matrices based on first-order perturbationsIEEE Transactions on Signal Processing, 1994
- Direction and polarization estimation using arrays with small loops and short dipolesIEEE Transactions on Antennas and Propagation, 1993
- Azimuth and elevation computation in high resolution DOA estimationIEEE Transactions on Signal Processing, 1992