基于MATLAB的直接序列扩频通信系统仿真

Analysis of Direct Sequence Spread Spectrum Communication System Based on MATLAB Simulation

本文以扩频理论为基础,用MATLAB对直接序列扩频通信系统进行了仿真。系统中扩频编码采用m序列,整个系统采用QPSK调制方式,接收端同步捕获过程采用数字匹配滤波器的原理。在给定的仿真条件下,对仿真程序进行了运行测试,得到了预期的仿真结果。

In this paper, on basis of the spectrum theory, the simulation of the direct sequence spread spectrum communication system is built by MATLAB. In the system, using m sequence as spread spectrum encoding, the entire system uses QPSK modulation mode. The receiver employs the priciple of the digital matched filter in the process of synchronous acquisition. Under the given simulation conditions, the simulation programs run tests and get the desired simulation results.