摘要
在通信系统中,跳频信号不仅会出现时延,还会存在频移。研究具有时频二维低/无碰撞区的跳频序列的构造。证明了Reed-Solomon(RS)码的时频二维周期汉明自相关函数的上界;提出了两种构造方法。第一种方法是基于RS码来构造时频二维周期低碰撞区跳频序列集。第二种方法利用矩阵来构造时频二维非周期无碰撞区跳频序列集。丰富了时频二维低/无碰撞区跳频序列的理论研究成果。
In the communication system,the frequency hopping signal not only has time shift,but also frequency shift.The construction of the frequency hopping sequence with the time-frequency two-dimensional low or no hit zone are studied.The upper bound of the time-frequency two-dimensional period Hamming auto-correlation function of Reed-Solomon(RS)codes is proved.Two methods of construction are proposed.The first method based on RS codes is to construct the period frequency hopping sequence set with the time-frequency two-dimensional low hit zone.The second method is to construct the aperiodic frequency hopping sequence set with the time-frequency two-dimensional no hit zone by matrix.These methods can enrich the theoretical results on the frequency hopping sequence with the time-frequency two-dimensional low or no hit zone.
作者
许成谦
曹琦
XU Chengqian;CAO Qi(School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China)
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2018年第4期898-903,共6页
Systems Engineering and Electronics
基金
国家自然科学基金(61671402)
河北省自然科学基金(F2015203150)资助课题
关键词
跳频序列
汉明相关函数
低碰撞区
无碰撞区
frequency hopping sequence
Hamming correlation function
low hit zone (LHZ)
no hit zone (NHZ)
