摘要
利用SystemView软件仿真语音模拟信号经扩频通信系统传输,建立了扩频通信系统模型,分析了系统有噪声和没有噪声的情况,比较了语音信号有经过扩频通信系统和没有经过扩频通信的噪声情况。仿真结果表明,该软件较很好的实现仿真,并且能够仿真比较复杂的通信系统,计算快,实现简单。对于设计通信系统,在节约成本,提高效率,理论计算方面,具有一定实用价值。
Voice anolog signal transmited by the spread spectrum communication systems is simulated with the software SystemView,the spread spectrum communication system model established.The system situations with noise and with no noise are analyzed,and the noise stuations of the voice signal through the spread spectrum communication system and not through spread spectrum communication system compared.Simulation results show that this software could fairly implement simulation,even the situation on relatively complex communication systems.This software,fast in computing and simple in implementation,is of certain practical value in cost saving,efficiency improvement and theoretical calculations for the design of communication system.
出处
《通信技术》
2012年第2期115-117,120,共4页
Communications Technology
关键词
扩频通信
低通滤波
仿真
增量调制
spread spectrum communication
low-pass filtering
simulation
delta modulation
