Data Fusion Software Design And Implementation Of Underwater Measurement And Control Equipment Network

As the world attaches great importance to the construction of coastal defense and marine rights and interests,underwater acoustic positioning technology as the most effective means of navigation and positioning,is an important part of national marine science field.Data fusion of information obtained from multiple sensors can obtain more valuable information than the original.Therefore,multi-sensor data fusion is more and more widely used in underwater acoustic positioning technology.This topic comes from underwater measurement and control network system(hereinafter referred to as network system).The system groups the underwater target high-precision positioning system,the passive underwater target tracking measurement system,and the long baseline underwater navigation system.Based on the working principle of the multi-set underwater measurement and control equipment above,the accuracy simulation analysis of each system is completed.According to the physical properties of the measurement and control equipment,project is determined that the time delay information is used to calculate target position,and azimuth information is used with time delay to improve distance fuzzy function of the system.The joint positioning model's establishment of multi-mode measurement node is realized.Based on the characteristics of the underwater measurement and control equipment networking system,the research of data fusion positioning algorithm is completed,including the parametric level fusion algorithm and the research of feature level fusion algorithm.The parameter level fusion algorithm includes optimization algorithm and Chan localization algorithm.The signature fusion algorithm includes data support matrix fusion algorithm,GDOP power values algorithm.In this paper,the location model,solution method and accuracy simulation of each algorithm are given,and the comparison and analysis of each algorithm is completed.Compared with other algorithms,Chan has a large advantage in positioning accuracy and computation speed,and is less affected by the error of measurement,error of array and speed of measurement.According to the working process of the whole system,this paper designs the display control platform of function modules,including infrastructure,file management module,views,modules,system initialization,decoding module,communication module,the fusion tracking module,a post-processing module and data display module,display controlmodule in the system and illustrates the function,design idea,implementation method and the interface view.In order to verify the software function,the simulation of the system of high accuracy positioning system,long baseline underwater navigation positioning system and passive underwater target tracking system is completed,and the verification of the functions such as target parameter setting,network communication,communication with ocean command center,3D display transmission,fusion positioning solution,data storage,parameter display and post-processing is completed,thus proving the validity and practicability of the above fusion algorithm,and the stability and reliability of the software function of the positioning solution.