一种突发通信信号的检测及位定时估计算法  

An Algorithm of Signal Detection and Symbol Timing Recovery in Burst-mode Transmission

作　　者：杜丹[1] 潘申富[1] 江会娟[1] 裴文端[1] 

机构地区：[1]中国电子科技集团第54研究所,河北石家庄050081

出　　处：《无线电通信技术》2007年第1期17-18,41,共3页Radio Communications Technology

摘　　要：提出了一种信号检测及位定时估计算法,与常规的算法相比,该算法不仅可以同时进行信号检测和位定时估计,而且可在较低信噪比、较大载波频偏和较大的信号动态范围内下工作,适合用于突发通信。在已有理论的基础上对算法进行了讨论,并给出了计算机的仿真结果。This paper presents a signal detection and symbol timing recovery algorithm, which can perform signal detection,and symbol timing recovery at the same time and operate under the condition of lower signal-to-noise, larger carrier frequency deviation and larger signal dynamic range compared with common algorithms. The method is readily implemented in burst-mode transmission. The paper discusses the algorithm based on the known theory and gives the implementation structure of the system. It also gives the computer simulation result of the algorithm.

关 键 词：突发通信 QPSK 信号检测 位定时恢复 

分 类 号：TN92[电子电信—通信与信息系统]