摘要
提出了一种数字通信中码元同步时钟信号的开环提取方法.根据此方法设计了码元同步时钟信号提取电路原理框图,本方法比通常用的闭环提取法具有同步快、实现简单等特点.给出了码元同步时钟信号的提取原理,并用单片机予以实现,同时给出了软件程序的流程图.
The open-loop extraction method for symbol synchronization clock signal in digital communication was present. Based on this method, synchronization clock signal extraction circuit diagram was designed. Compared with the closed-loop extraction method that commonly used, this method had the characteristics of quick synchronization, simple realization and so on. The principle of symbol synchronization clock signal was given, and it was realized by STC MCU, software program flow charts were given too.
出处
《河北大学学报（自然科学版）》
CAS
北大核心
2013年第4期420-423,共4页
Journal of Hebei University(Natural Science Edition)
基金
河北省自然科学基金资助项目(F2011201045)
保定市科学技术研究与发展指导计划项目(12ZG017)
关键词
码元同步
单片机
数字通信
锁相环
timing synchronization micro control unit
digital communications
phase-locked loop
