一种基于改进Logitic映射的跳频序列生成算法  

A Modified Algorithm for Generating Frequency-Hopping Sequences

作　　者：赖平 柏航 冯继伟 陆迪 

机构地区：[1]解放军63981部队

出　　处：《通信技术》2015年第10期1125-1128,共4页Communications Technology

摘　　要：在扩频序列生成算法中,针对周期抽取算法平衡性和比特重排算法稳定性的欠缺,基于改进的Logitic映射,结合采用比特抽取和扰动的方法,提出了一种改进的算法来构造跳频序列,提出的算法不需要考虑与其他映射或者序列进行同步的问题,很大程度上缩减了迭代次数。仿真结果表明,提出的算法可以提供相关性更加优良的序列,且均匀性、平衡性上优于周期抽取比特重排算法,汉明相关性与理论参考值近似重合。Due to the balance deficiency of periodic extraction algorithm and stability deficiency of bits recomposition algorithm in generating algorithm of spread spectrum sequence, a modified algorithm based on logitic mapping and in combination of bits extraction algorithm with perturbation method, is proposed to generate frequency-hopping （FH） sequences. No synchronization problem of between the proposed algo-rithm and other mappings or sequence is considered, thus lation results indicate that, this algorithm could generate to reduce the iterations to a large extent. Simu- FH sequences with better properties in correlation, homogeneity and stabilization as compared with cycle-extraction bit-rearrangement method, and in addition, the hamming correlation is approximately identical to the theoretical reference value.

关 键 词：FH序列 扰动方法 比特重排 汉明相关性 

分 类 号：TN914[电子电信—通信与信息系统]