Seawater ion motion magnetic field simulation method and device for underwater target detection

Abstract

The invention discloses a seawater ion motion magnetic field simulation method and device for underwater target detection, and the method comprises the steps: S1, building a seawater ion motion magnetic field preliminary model, then, carrying out simplification under the quasi-stability hypothesis, and finally, constructing a seawater ion motion magnetic field model of which the magnetic field intensity is described by sound source parameters of an external excitation source and physicochemical parameters of a seawater solution; and S2, during simulation, constructing a sea area model, determining seawater solution physicochemical parameters of a to-be-simulated sea area, simulating a sound field, inputting a simulation result into the sea area model as sound source excitation to obtain asound source parameter calculation result, inputting the seawater solution physicochemical parameters and the sound source parameter calculation result into the seawater ion motion magnetic field model, and calculating to obtain a simulation result of the seawater ion motion magnetic field. According to the invention, the magnetic field generated by seawater ion separation excited by underwater target motion can be simulated, and the method has the advantages of simple simulation implementation, high efficiency and precision and the like.

Description

technical field [0001] The invention relates to the technical field of underwater target detection, in particular to a seawater ion moving magnetic field simulation method and device for underwater target detection. Background technique [0002] When the sound source is injected into the electrolyte solution, different types of ions have differences in parameters such as mass and friction coefficient, and the ions will be separated under the excitation of the same external sound source, which destroys the uniform distribution of ions in the original solution. , thereby generating an electric current and causing an electromagnetic field in the solution. High-saline seawater is filled with a large number of positive and negative ions, such as sodium cations and chloride anions, which are equivalent to electrolyte solutions. Therefore, in seawater, once the injection sound source is excited, an electromagnetic field caused by the separation of seawater ions will be generated. ...

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Problems solved by technology

For the simulation of seawater ion moving magnetic field in seawater target detection, the implementation is more complicated, and there is no effective solution to realize it at present, and it is urgent to provide a seawater moving magnetic field simulation method, so that the simulation of seawater moving magnetic field in seawater detection can be realized

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