CDMA扩频通信系统.doc
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西安邮电学院
通信与信息工程学院
科研训练报告
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摘 要··································································2
Abstract·······························································3
1 绪论····································································4
2 CDMA扩频通信系统的发展方向Matlab/Simulink仿真软件及通信工具箱搭建CDMA扩频通信仿真系统与仿真结果4.1 搭建CDMA扩频通信仿真系统············································9
4.1.1扩展频谱通信原理························································9
4.1.2 CDMA系统的扩频方式和重要参数···········································9
4.1.3伪随机码的产生·························································9
4.1.4 PN序列的扩频原理·······················································11
4.1.5 CDMA扩频通信仿真系统原理框图···········································12
4.1.6 CDMA扩频通信仿真系统模型·············································12
4.2 CDMA扩频通信仿真系统
4.2.1 数据信号频谱仿真结果····························································15
4.2.2 扩频输出信号频谱致谢·········································································19
参考文献·····································································19
摘 要
本次科研报告首先介绍了CDMA技术,然后基于MATLAB仿真工具箱SIMULINK对CDMA进行扩频通信系统仿真文献检索查阅CDMA扩频通信系统的发展方向利用Matlab/Simulink进行通信仿真的相关资料SIMULINK仿真;扩频通信;伪随机序列;CDMA的发展方向The research report first introduced the CDMA technology, CDMA spread spectrum communication system and then based on MATLAB7.0 simulation toolbox SIMULINK simulation. M-sequence spread spectrum principles and code division multiple access communication system block diagram of a simulation model, select the appropriate system configuration and parameter settings. At the same time the use of literature retrieval methods to access to understand the direction of development of the CDMA spread spectrum communication system and communication simulation using Matlab / Simulink.
Keyword: CDMA; SIMULINK simulation; spread spectrum communication; pseudo-random sequence;th
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