针对无线电测距对扩频码的特殊要求,通过对传统的扩频码的比较分析,提出在无线电导航系统中引入移位序列作为扩频地址码。并对其相关特性进行仿真,通过仿真可知,它改进了测距扩频码 m 序列的互相关特性和 Gold 序列的自相关特性,从而提...针对无线电测距对扩频码的特殊要求,通过对传统的扩频码的比较分析,提出在无线电导航系统中引入移位序列作为扩频地址码。并对其相关特性进行仿真,通过仿真可知,它改进了测距扩频码 m 序列的互相关特性和 Gold 序列的自相关特性,从而提高了系统的性能,成为无线电导航系统扩频码的最优选择。展开更多
A new method to construct shift sequence sets is presented. Different shift sequence sets are obtained by changing parameters of the shift sequence. Based on these shift sequence sets, multiple shift distinct array se...A new method to construct shift sequence sets is presented. Different shift sequence sets are obtained by changing parameters of the shift sequence. Based on these shift sequence sets, multiple shift distinct array sets with zero-correlation zone （ZCZ） can be obtained by utilizing interleaving technique. It is shown that the resultant ZCZ array sets are optimal or almost optimal with respect to the Tang, Fan, and Matsufuji bound. Compared with previous methods, the proposed method extends the number of shift distinct ZCZ array sets.展开更多
基金supported by the National Natural Science Foundation of China (61172094)the Natural Science Foundation of Hebei Province (F2012203171)
文摘A new method to construct shift sequence sets is presented. Different shift sequence sets are obtained by changing parameters of the shift sequence. Based on these shift sequence sets, multiple shift distinct array sets with zero-correlation zone （ZCZ） can be obtained by utilizing interleaving technique. It is shown that the resultant ZCZ array sets are optimal or almost optimal with respect to the Tang, Fan, and Matsufuji bound. Compared with previous methods, the proposed method extends the number of shift distinct ZCZ array sets.
