无线语音通信电磁干扰仿真研究  

A Study of Electromagnetic Interference Simulation in Wireless Phonic Communication

作　　者：彭文成[1] 张文[1] 王良[2] 莫伟锋[3] 

机构地区：[1]装甲兵工程学院装备指挥与管理系,北京100072 [2]石家庄机械化步兵学院研究生队,河北石家庄050083 [3]装甲兵工程学院基础部,北京100072

出　　处：《计算机仿真》2010年第1期330-333,共4页Computer Simulation

摘　　要：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。并从电磁干扰效果的角度出发,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干扰的仿真。最后采用图形方式演示了仿真效果,证明了该方法可行性。It is of important practical value to simulate EMI for wireless phonic communication,and it can be applied 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.

关 键 词：电磁干扰 语音通信 数据采集工具箱 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]