摘要
分析并仿真了传统的非相干同步系统的相关性能.针对剩余码相位偏移效应对捕获性能造成的不良影响,证明了在1/Δ为整数的前提下,利用前后两个码位相关值相加可以克服该效应.基于该想法并在传统设计的基础上提出了非相干同步扩频捕获新算法.通过对新算法进行的仿真和分析,发现新算法的捕获性能确实比传统的捕获算法更好.
This paper firstly analyzes and simulates the relational performance of the conventional noncoherent synchronization system. According to the bad impact on acquisition performance by the effect of residual code phase offset, it proves that the sum of the two successive matched filter outputs can conquer the effect if 1/△ is integral. Based on the scheme and conventional design, it puts forward a new algorithm of noncoherent syn-chronization spread spectrum acquisition. Many results and simulations are also given to show that the pro-posed algorithm has better performance than the conventional design.
出处
《郑州大学学报（工学版）》
CAS
北大核心
2013年第1期112-115,120,共5页
Journal of Zhengzhou University（Engineering Science）
基金
安徽电子信息职业技术学院基金资助项目(ADZX1007)
关键词
扩频通信
非相干同步
剩余码相位偏移效应
伪码捕获
匹配滤波器
spread spectrum communication
noncoherent synchronization
effect of residual code phase off-set
PN code acquisition
matched filter
