摘要
在通信系统的接收端采用与发送端不同的跳频序列,用户的地址码就是这两个序列组成的序列偶。在以跳频序列偶为地址码的跳频通信系统中,跳频序列偶的自相关函数和互相关函数满足的理论界是判断跳频序列偶和跳频序列偶集好坏的标准。提出了跳频序列偶和跳频序列偶的汉明相关函数的概念,给出了由跳频序列偶的汉明相关值、频隙个数、序列的长度、序列偶的个数构成的理论界。
When two different frequency-hopping sequences are employed by the transmitting and receiving ends respectively in communication systems, the users~ address codes are the sequence pairs composed by these two sequences. In frequency-hopping communication systems which use frequency-hopping sequence pairs as ad- dress codes, the theory bound satisfied by autocorrelation function and cross-correlation function of frequency- hopping sequences is the criteria for judging good or had frequency-hopping sequence pairs and frequency- hopping sequence pair sets. The frequency-hopping sequence pair and its Hamming correlation function are pre- sented and the theory bound formed by frequency hopping sequence pairs, Hamming correlation values, fre- quency gap numbers, and sequence length are also provided.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2015年第2期412-416,共5页
Systems Engineering and Electronics
基金
国家自然科学基金(61172094
61201263)
河北省自然科学基金(F2015203150)资助课题
关键词
跳频序列偶
汉明相关函数
自相关
互相关
frequency hopping sequence pair
Hamming correlation function
autocorrelation
cross-corre-lation
