SHIP TARGET TRACKING USING UNDERWATER ELECTRIC FIELD

—Underwater electric field is an important source of exposure for warship targets, so we try to track the ship’s movement by measuring its underwater electric field in this paper. Considering the nonlinear distribution characteristics of underwater electric field, the unscented particle filter method is applied for tracking. First, the equivalent electric field model based on point-electrodes methods is studied. Second, the equivalent electric field model of a scaled ship is used as the electric field source, and the source’s movement is tracked by measuring the three components of the underwater electric field induced by the source. To meet the requirements of mine applications, only one measuring node is used in the tracking process. The numerical simulation result shows that the target can be tracked stably within 200 meters of the measuring node. Finally, a sea trail experiment is carried out to examine the effectiveness of this method. In this experiment, the electric field source is composed by two graphite electrodes, and only the horizontal components of underwater electric field are measured. The results show that the tracking performance is good within 150 m of the measuring node.

[1]  Yu Peng,et al.  Inversion of UEP signatures induced by ships based on PSO method , 2020 .

[2]  Peng Yu,et al.  Research of Ship's Stealth Methods in Static Electric Field , 2017 .

[3]  Yinan Cui,et al.  A Particle Filter for Dynamic State Estimation in Multi-Machine Systems With Detailed Models , 2015, IEEE Transactions on Power Systems.

[4]  Jiang Runxian,et al.  Vessel's shaft-related electric field signal detection based on the AR model parameter , 2013 .

[5]  Ma Ke.  Underwater Moving Target Detection and Parameter Estimation of the Array Electric Field Sensor , 2012 .

[6]  Marius Birsan,et al.  Measurement of the extremely low frequency (ELF) magnetic field emission from a ship , 2011 .

[7]  Li Jun,et al.  Localization of a horizontal electric dipole source embedded in deep sea by using two vector-sensors , 2011 .

[8]  Y. Wang,et al.  Comparison of Impressed Current Cathodic Protection Numerical Modeling Results with Physical Scale Modeling Data , 2010 .

[9]  R. K. Lennartsson,et al.  Electric detection of divers in harbor environments , 2009, OCEANS 2009.

[10]  Luan Jing-de,et al.  Detection of Line Spectrum of Fundamental Frequency on Shaft-Rate Electric Field of a Ship , 2009 .

[11]  M. Birsan.  Unscented particle filter for tracking a magnetic dipole target , 2005, Proceedings of OCEANS 2005 MTS/IEEE.

[12]  Gong Shen-guang.  Point-electrode model of electric field of steady current in sea , 2004 .

[13]  Timothy J. Robinson,et al.  Sequential Monte Carlo Methods in Practice , 2003 .

[14]  Nando de Freitas,et al.  The Unscented Particle Filter , 2000, NIPS.

[15]  Henry Leung,et al.  Tracking the direction-of-arrival of multiple moving targets by passive arrays: algorithm , 1999, IEEE Trans. Signal Process..