一种新的低/零碰撞区跳频序列集构造方法

摘要

Low/no-hit zone( LHZ/NHZ) frequency hopping( FH) sequence set can be used in quasi-syn-chronous code division multiple access( QS-CDMA) FH communication system to eliminate multiple ac-cess interference. In this paper,a novel construction method of LHZ/NHZ FH sequence set based on inter-leaving technique is derived. Optimal or sub-optimal LHZ/NHZ FH sets are constructed through interlea-ving transformation when shift sequences are rationally designed for variable parameters of the sequence sets. Numerical simulations for different parameters are consistent to the construction method,besides, the sequence set constructed by it has less periodical collisions and higher practicality. The novel LHZ/NHZ sequence sets can be employed in QS-CDMA FH communication systems to achieve better performance.%低/零碰撞区跳频序列能够应用于准同步跳频通信系统中以缓解多址干扰的影响。提出了一种新的基于交织方法的低/零碰撞区跳频序列集构造方法。针对序列集的不同参数设计合理的移位序列，通过交织变换构造具有最优或次优性的低/零碰撞区跳频序列集。对不同参数进行了数值仿真，得到和所提方法一致的结论，且该方法构造的序列集具有更低的周期碰撞次数，实用性更强。新的低/零碰撞区跳频序列集可以应用于准同步跳频通信系统中，从而获得更优的性能。