关键字:Matlab,GUI,数字调制技术,PSK ,DPSK,QAM
Abstract
Digital modulation techniques play an important role in communication systems.The simulation performance can be obtained and the analysis of modulation system can be easy by using MATLAB of monte carlo simulation on the digital modulation system. It can easily calls the simulation function, displays the simulation results, the simulation process of concrete, graphic, oversimplification, and can be compared of different digital modulation systems. Also it can analyze the advantages and disadvantages of different digital modulation systems, and it can gives the reference value of choosing the right modulation technique for the communication system by designed GUI (graphical user interface) of digital modulation system using MATLAB in the GUIDE or all the command line M-file.This paper gives a detailed introduction to the PSK, DPSK and QAM modulation and demodulation, its MATLAB simulation of BER performance, and built a GUI interface that on simple premise.
Keyword: Matlab,GUI,Digital Modulation System,PSK,DPSK,QAM