摘要
同步是通信系统中非常重要的一个实际问题,是保证整个通信系统进行有序而可靠工作的技术支撑。在数字通信系统中,除了载波同步外,还需要实现位同步。实现位同步的方法主要有滤波法和锁相法,位同步锁相法的基本原理和载波同步的原理基本类似。本文设计了一种数字锁相法位同步提取方案,分析了位同步提取原理,阐述了实现方案和模块设计的方法,在MaxplusⅡ下完成编译、综合、仿真、下载到FPGA芯片等功能。仿真及试验表明,设计稳定可靠,且能够满足要求。
Synchronization is a very important practical aspect in the communication system,it is also the technical support to guarantee the whole communication system working orderly and dependably.Except carrier wave synchronization,it also needs bit synchronization in digital communication system.The method of realizing bit synchronization mainly includes filtering idea and phase-locked,the principle of phase-locked bit synchronous is similar to the principle of carrier wave synchronization.This paper designed one kind of digital phase-locked bit synchronous extraction project,introduced the principle of bit synchronization,the paper described the project and modules based on FPGA,and compiled and simulated with Maxplus Ⅱ.The simulation has shown that the design is well in reliability,and can meet the request.
出处
《新技术新工艺》
2011年第5期28-30,共3页
New Technology & New Process
基金
宝鸡文理学院重点资助项目(ZK09134)
