基于matlab的直序扩频通信系统的仿真

基于 matlab 的直序扩频通信系统的仿真摘 要根据扩频理论，用 MATLAB 对直接序列扩频通信系统进行了仿真。根据香农定理和科捷尔尼科夫潜在抗干扰理论,通过 MATLAB 的仿真平台对直扩通信系统进行了仿真,建立了扩频通信系统仿真模型，详细讲述了各个模块的设计,接收端同步捕获过程采纳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.关键词：直接序列扩频；通信；MATLABDirect sequence spread spectrum communication system based on matlab simulationAbstract In this paper, based on the spread spectrum theory， I use MATLAB to simulate the direct sequence spread spectrum ． According to the shannon theorem and jie's nico’s potential interference theory, direct sequence spread spectrum is simulated by the simulation platform which is offered by MATLAB 。 And it tells the story of the design of various modules in detail. The receiver synchronization capture process adopts the principle of digital matched filter. In a given simulation conditions ， I run the test simulation program and get the expectant simulation results.Key Words: direct sequence spread spectrum, communication， MATLAB 目录1 绪论.................................................................11.1 扩频通信的概述.................................................11。2 扩频通信的进展及应用..........................................12 直接序列扩频通信.....................................................32。1 理论基础......................................................32。2 扩频通信系统的指标............................................42.3 扩频通信的种类.................................................52。4 直接序列扩频通信系统..........................................62。5 扩频序列.....................................................112.6 扩频序列的同步捕获............................................142.6。1 扩频序列的伪码同步....................................142.6。...