CAJ | 학술논문

对无线通信电磁干扰进行仿真研究具有重要实用价值,可以应用到多种仿真系统中.针对无线通信所受到的电磁干扰情况,对电磁干扰进行了分类,引入各类噪声模型,并以调幅噪声干扰调频信号为例论述了电磁干扰的基本原理.并从电磁十扰效果的角度出发,通过MATLAB软件中数据采集工具箱采集语音信号,同时用MATLAB中的函数生成或数据采集工具箱采集的方法产生离散噪声数据,之后将噪声数据与语音数据叠加,实现对无线语音通信电磁十扰的仿真.最后采用图形方式演示了仿真效果,证明了该方法可行性.
대무선통신전자간우진행방진연구구유중요실용개치,가이응용도다충방진계통중.침대무선통신소수도적전자간우정황,대전자간우진행료분류,인입각류조성모형,병이조폭조성간우조빈신호위례논술료전자간우적기본원리.병종전자십우효과적각도출발,통과MATLAB연건중수거채집공구상채집어음신호,동시용MATLAB중적함수생성혹수거채집공구상채집적방법산생리산조성수거,지후장조성수거여어음수거첩가,실현대무선어음통신전자십우적방진.최후채용도형방식연시료방진효과,증명료해방법가행성.
It is of important practical value to simulate EMI for wireless phonic communication, and it can be ap-plied to many kinds of simulation systems. In view of the EMI on wireless phonic communication, this paper classifies the EMI, and introduces some noise models, then takes EMI between FM and AM signals as an example to discuss the EMI theory. Starting from the EMI effect, the paper introduces an EMI simulation method of how to sample voice signal with Data Acquisition Toolbox, and how to produce discrete noise data by using MATLAB functions or sampling from actual noises with Data Acquisition Toolbox, then overlap the noise data and voice data. At last, graphics is used to illustrate the simulation effect, which validates that the method is feasible.