版块是用香浓定理来述说扩频通信时传播原理。并用MATLAB的编程软件去建立一个直接扩频的仿真模型的，在排除其他因素的情况下可以观察曲线和动态图去分析直接扩频的可靠程度-Section in aromatic theorem is used to declare the spread spectrum communication transmission principle. With MATLAB programming software to build a simulation model

对matlab通信仿真中噪声添加进行了定量分析，分别对awgn和randn加噪进行了编程实现，对于初学者掌握matlab噪声定量添加非常有帮助。-Communication Simulation of matlab noise addition quantitative analysis, respectively awgn and randn plus noise was programming for beginners to master matlab noise dosing very