π/4-DQPSK调制快速位定时捕获算法及其DSP实现  

Symbol Timing Rapid Acquisition Algorithm for π/4-DQPSK and Implementation of DSP

作　　者：苏立国[1] 卢刚[1] 程恩[1] 

机构地区：[1]厦门大学电子工程系,厦门361005

出　　处：《微电子技术》2001年第4期1-5,共5页Microelectronic Technology

摘　　要：阐述利用一种新的π 4 -DQPSK调制快速位定时捕获算法进行低速率数字移动突发通信 ,并利用TMSC5 4xDSP芯片实现该算法的关键技术。实验表明 。A new symbol timing rapid acquisition algorithm for π/4-DQPSK in low-rate digital mobile burst signal communication is elaborated.DSP-based implementation is also presented.Compared with traditional algorithms,the experimental results with new algorithm show that Doppler frequency offset can be avoided effectively and symbol timing rapid acquisition process can be completed rapidly.

关 键 词：Π/4-DQPSK调制 位定时捕获算法 数字信号处理器 

分 类 号：TN911.3[电子电信—通信与信息系统] TN911.72[电子电信—信息与通信工程]