In light of the difference between ship hydrodynamic pressure and wave pressure,a method for detecting the hydrodynamic pressure signals of ship was proposed based on wavelet power spectra estimation and support vector machine(SVM) multi-step prediction.

The development of three unit array synchronous measurement system for acquiring ship hydraulic pressure field

Research of faintness detection signal from ship hydraulic pressure field based on three unit array

The result of magnetic measuring experimentation is time-serial data-set,which could not been used to model warship magnetic field directly.

Magnet simulation is often used in calculating a vessel′s magnetic field,but the precision is affected by this positions of the magnet that often depend on human experience.

On the basis of analyzing the time frequency of a ship magnetic field by using short time Fourier transform, this paper discusses the time frequency distribution characteristics of the ship magnetic field.

This paper uses standardized correlation coefficients as the standards balacing the degree of simularity of multi channel signals On the basis of comparing measured data with simulated ones, it analyzes and sums up the degree of simularity of the passing characteristic curves of ship magnetic fields and hydro dynamic fields in unmerical quantities with the help of a new method .

The conclusions prove that the electric field of warship has obvious characteristics and can be detected easily.