| 基于Simulink的直接序列扩频通信系统的仿真 |
| |
| 引用本文： | 倪琳娜,赵振岩,于海锋.基于Simulink的直接序列扩频通信系统的仿真[J].航天器工程,2010,19(2):74-80. |
| |
| 作者姓名： | 倪琳娜 赵振岩 于海锋 |
| |
| 作者单位： | 北京空间飞行器总体设计部,北京,100094 |
| |
| 摘 要： | 卫星通信系统测试扩频信号源需具备自检功能。文章利用MATLAB的可视化工具箱Simulink建立了直扩通信系统的仿真模型,为扩频信号源自检程序设计提供参考。采用滑动相关捕获算法、单△值非相干延迟锁定伪码跟踪环,实现了伪码同步。仿真结果表明,该系统可无误码地恢复发端原始信息。
|
| 关 键 词： | 卫星通信 直接序列扩频 伪码捕获 伪码跟踪 |
Simulation of Direct Sequence Spread Spectrum Communication System Based on Simulink |
| |
| NI Linna,ZHAO Zhenyan,YU Haifeng.Simulation of Direct Sequence Spread Spectrum Communication System Based on Simulink[J].Spacecraft Engineering,2010,19(2):74-80. |
| |
| Authors: | NI Linna ZHAO Zhenyan YU Haifeng |
| |
| Institution: | (Beijing Institute of Spacecraft System Engineering,Beijing 100094,China) |
| |
| Abstract: | The spread spectrum signal source for testing the performance of satellite communication system must have the self-check function.To provide the reference mode to the self-check program’s design of spread spectrum signal source,the simulation model of direct sequence spread spectrum communication system has been built by using Simulink provided by MATLAB.Sliding correlation acquisition scheme and one-non-coherent delay-lock tracking loop are adopted to implement the synchronization of PN code.The result shows that the simulated system can recover the transmitted signal correctly. |
| |
| Keywords: | satellite communication direct sequence spread spectrum PN acquisition PN tracking |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
