一种改进的分段式互相关帧同步检测方法  

A Modified Segmental Cross-Correlation Algorithm for Frame Synchronization Detection

作　　者：刘明 LIU Ming(No.10 Institute of CETC,Chengdu Sichuan 610036,China)

机构地区：[1]中国电子科技集团公司第十研究所,四川成都610036

出　　处：《通信技术》2023年第6期708-713,共6页Communications Technology

摘　　要：通过研究载波偏移情形下的分段式互相关帧同步检测方法的特性,提出一种改进的分段式互相关帧同步检测方法。所提方法在增加相对较少的计算量的基础上获得了更优的检测性能,同时有效地降低了现有方法的虚警概率。相比现有方法,在低信噪比大载波偏移情况下,所提方法能够获得约1 dB的性能增益。By studying the characteristics of the segmental cross-correlation method for frame synchronization detection in presence of carrier frequency offset,an improved segmental cross-correlation method is proposed.The proposed method can achieve better detection performance with increasing little computation and reducing the false alarm probability of existing methods.In the case of low signal-to-noise ratio and large carrier frequency offset,compared to the existing methods,the proposed method is able to achieve a performance improvement of about 1dB.

关 键 词：数字通信 帧同步检测 互相关方法 载波偏移 

分 类 号：TN914.31[电子电信—通信与信息系统]