摘要
针对频通信广泛的应用 ,对它进行系统建模与仿真非常有益。论述了采用相关器捕捉环路和跟踪环路以及科斯塔斯环路 ,实现无导频直接序列扩频通信系统的伪码同步与载波同步的方法 ,给出了在系统仿真软件Serenade平台下的仿真结果 ,详细展示了扩频接收机工作的全过程 ,为设计、分析直扩通信系统提供了方便。
With the wide use of the direct-sequence spread spectrum communication (DSSS) technique, it is very beneficial to model and simulate such communication system. This paper discusses the synchronizations of both PN code and carrier in DSSS system without pilot, with the method of the correlator acquisition loop, tracking loop and costas loop. The simulation results and the detailed process of the receiver by the software Serenade are also presented. These results will greatly help the work of DSSS communication system design and analysis.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2003年第2期154-159,共6页
Systems Engineering and Electronics
关键词
扩频
领导
具
同步
伪随机码
Spread spectrum
Simulation
Synchronization
PN code
