摘要
针对传统跳频序列偶只包含时延变量的一维汉明相关函数的问题,在相关函数中加入频移因素,提出了跳频序列偶的时频二维移位汉明相关函数的概念.证明了二维相关跳频序列偶的唯一性,保证了这类信号在实际应用中的唯一接收.导出了由二维相关跳频序列偶的汉明相关函数、序列偶个数、频隙个数和序列长度构成的理论界,对于构造满足理论界的二维相关跳频序列偶具有重要意义.
In view of the traditional frequency hopping sequence pair containing only one-dimensional Hamming correlation function of time-delayed variables,frequency shift factors are added to correlation function,and the concept of time-frequency two-dimensional correlation function of frequency hopping sequence pair is proposed. The uniqueness of frequency hopping sequence pair is proved,and the only reception of this kind of signal is guaranteed in the practical application. The theory bounds formed by twodimensional Hamming correlation values,the number of frequency hopping sequence pair,the number of frequency gap and sequence length are derived. It is of great significance to construct the two-dimensional correlation frequency hopping sequence pair which can satisfy the theory bounds.
作者
许成谦
赵雅洁
XU Cheng-qian, ZHAO Ya-jie(1. School of Information Science and Engineering, Yanshan University, Hebei Qinhuangdao 066004, China; 2. Hebei Key Laboratory of Information Transmission and Signal Processing, Yanshan University, Hebei Qinhuangdao 066004, Chin)
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
2018年第1期31-36,共6页
Journal of Beijing University of Posts and Telecommunications
基金
国家自然科学基金项目(61671402)
河北省自然科学基金项目(F2015203150)
关键词
跳频序列偶
二维汉明相关函数
唯一性
理论界
frequency hopping sequence pair
two-dimensional Hamming correlation function
uniqueness
theoretical bound
