Research On Multi Base Station Positioning Technology Of Simulation Training Vehicle

The current simulation training system is to simulate large-scale scene through small-scale environment.When the simulation training system is faced with the vehicle positioning,the data acquisition is difficult,the positioning accuracy is not accurate and so on,so this paper will start with the above problems,focus on the simulation training system based on UWB positioning technology,For the research of TDOA accurate measurement,this paper designs and implements the simulation training vehicle multi base station positioning system based on UWB indoor positioning technology.Starting from the advantages of UWB positioning technology,this paper analyzes several commonly used ranging algorithms in UWB positioning technology,and analyzes the source of error.Finally,the experimental results show that the system requirements based on UWB positioning technology are fulfilled by using the selected ranging and positioning method and combining with the mathematical derivation formula to calculate the vehicle heading angle.It is an important method to locate the vehicle accurately.This paper mainly from the UWB positioning method,system positioning course algorithm research,hardware circuit design several aspects,using the method of theoretical analysis,circuit design,experimental analysis,result comparison to study the positioning vehicle position processing technology of simulation training system.First of all,based on the traditional simulation training system,this paper analyzes the factors affecting vehicle positioning,and obtains an improved positioning technology theory: different simulation training environments require different positioning technology requirements,so it is necessary to study and analyze the types of positioning technology,and bring UWB positioning technology into the improved positioning technology theory.Secondly,when using UWB positioning technology,with the change of different measurement conditions,the ranging algorithm of UWB positioning technology will also change.In order to improve the measurement accuracy,this paper analyzes the positioning methods used in UWB positioning technology in detail and designs a UWB positioning system based on TDOA positioning method.This paper designs the hardware system which can be used in the positioning experiment and introduces the software design of the positioning system.Based on the positioning test,the positioning technology is improved,and a new positioning algorithm and heading angle judgment are added to make the measurement results more accurate and reliable.At the end of the paper,the experimental verification and data analysis are carried out to verify the feasibility and accuracy of the method.