Research on ship electric field simulation and signal generation based on virtual instrument technology
Semi-physical simulation of underwater electric field is an important means to study the characteristics of ship's underwater electric field,verify the performance of underwater electric field sensing device and the effect of feature detection algorithm.This paper focuses on the demand for semi-physical simulation of electric field,combines the electric field mathematical model with virtual instrument technology,and develops a set of ship's electric field simulation device based on LabVIEW platform,which can convert the simulation signal of the ship's mathematical model into a physically per-ceivable voltage signal.The ship's electric field is equivalent to the horizontal electric dipole model,based on LabVIEW lan-guage development measurement and control software interface,the bottom call dipole electric field model dynamic link lib-rary file to achieve the numerical computation of the electric field signal,the use of numerical signals to drive the 24-bit D/A card to produce analog voltage signals,to achieve the physical generation of the ship's electric field signal.After experiment-al verification,the ship electric field simulation device can realize the physical output of the ship electric field signal under typical marine environment,and the output signal curve matches with the calculated curve of the model,which can provide signal input for the ship electric field test and related algorithm verification.
ship electric fieldvirtual instrumentsignal generation
NETL
NSTL
万方数据
