Design And Implementation Of Virtual Simulation Experiment System Based On Java And Matlab

Due to the rapid development of network technology,the application of distance learning is very common.At present,professional basic courses such as signal processing involve a lot of mathematical theory knowledge.Colleges and universities usually use simulation software to assist experimental teaching,so it is necessary to move simulation experiments to the network.Solved a variety of objective problems such as the lack of experimental equipment,location restrictions,precision degradation caused by the aging of the instrument.The virtual simulation system mainly includes a management platform,an operation platform,and a demonstration platform.The realization of the demonstration platform is the key technology of the system.Through research on the current domestic literature on virtual simulation experiments,it is concluded that there are mainly three technologies for implementing the virtual simulation experiment system: Labview,Web3 D,and MATLAB.Through analysis,it was found that the demonstration platform has the problems of slow transmission of simulation data,inflexibility of the system,and lack of interactivity.Based on Java and MATLAB virtual simulation experiment system,MATLAB with powerful simulation function as the underlying computing platform,combined with MATLAB Builder Ja to encapsulate the function functions written by MATLAB as Java class,and finally invoked in Java.The client adopts the JAVA interface programming technology,using the WebFigure tag in the JSP to call the MATLAB resource in JAVA.The demonstration experiment interface selects the MATLAB GUI to complete and realize the independent visual display of the MATLAB GUI graphic form at the web page end.Through these technologies,in the end,not only the user can modify and set simulation parameters,but also can obtain experimental results in a timely manner.Moreover,MATLAB's form properties are retained,such as acquiring a certain point coordinates,graphic zooming,and line setting.Finally,the design of the basic experiment FIR filter in the digital signal processing course and the online demonstration of the extended experimental beat signal are taken as an example to illustrate the design and implementation process of the platform and its components.Through this example,the development is proved.The feasibility of the method and the operability of the platform.