直接序列扩频—2FSK系统的SystemView仿真  

Simulation of DSSS-2FSK by SystemView Software

作　　者：周晴[1] 

机构地区：[1]常州轻工职业技术学院,江苏常州213164

出　　处：《现代电子技术》2008年第19期134-136,共3页Modern Electronics Technique

摘　　要：在简单介绍SystemView仿真软件和扩频通信的基础上,建立了直接序列扩频—2FSK通信系统的模型,介绍了该系统的基本工作原理。为了验证该系统的可行性以及在实际工程中的应用价值,系统发射端利用SystemView先对信号进行31位直接序列扩频仿真,再对此已扩频后的信号进行2FSK调制仿真,与此对应在接收端先对接收到的信号2FSK解调再进行解扩。仿真结果表明,通过用SystemView软件仿真,可以很方便地得到所设计电路的输出结果与分析波形。On the basis of introducing the technology of SystemView and spread spectrum,a communication system model of DSSS- 2FSK is built and the system principle is introduced in this paper, In order to verify the system is feasibile and it has application value in actual engineering,system spreads signals＇spectrum （one bit to 31bit） and 2FSK modulates spread- spectrum signals on system transmitting terminal with SystemView. Corresponding with this, system 2FSK demodulats receiving signals and then de- spreads 2FSK demodulation signals on system receiving terminal. The result of simulation indicates that with SystemView is easy to find out the output of designed circuit and convenient to analyze the waveform.

关 键 词：直接序列扩频系统 扩频码 2FSK System VIEW 仿真软件 

分 类 号：TN914.42[电子电信—通信与信息系统]