无线电导航系统扩频码的优选与仿真  

Optimization and Simulation of PN Sequences on Radio Navigating System

作　　者：张宣[1] 闫保中[1] 石吉利[1] 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《弹箭与制导学报》2004年第S2期238-241,共4页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：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。To satisfy the unique request of PN sequences optimization,the paper proposes a scheme in which a set of shift sequences of one m-sequence are used as SS code in radio navigating system.We learn it will improve the cross- correlation of m-sequences,auto-correlation of Gold sequences through simulation,and then the performance of sys- tem.So it is the best one for radio navigating system.

关 键 词：扩频地址码 移位序列 

分 类 号：V249.32[航空宇航科学与技术—飞行器设计]