摘要
To model the underwater electric potential(UEP) of ships,a multiple point-electrodes method is commonly used.However,it is difficult to determine the total number of point-electrodes,their respective positions and current values.In this paper,the particle swarm optimization(PSO) method is applied to solve the number,positions and current values of these point-electrodes according to the UEP distribution at a known depth below the keel of a ship.A scaled ship model experiment is carried out to determine the effectiveness of the method.The results show that for hulls in a latural corrosion or cathodic protection state,the UEP inversion accuracy can reach 85% at different depths below the keel.This method is suitable for software implementation and can help the simulation and prediction of UEP signatures.
基金
based on the support by the Research project“Deep Sea of Electromagnetic Detection System”,Initiated by Pilot National Laboratory for Marine Science and Technology(Qingdao,China)。
