论文部分内容阅读
扩谱通信中一个最基本的任务就是实现本机的伪随机信号与接收的伪随机信号的同步。本文讨论了一种新的精同步方法,这种方法不同于目前常用的延迟锁定环和τ-抖动环,它采用了声表面波(SAW)卷积器作为接收机的可编程匹配滤波器,利用相关峰位置偏移而得到了本机时钟脉冲的相位调整,从而解决了一类时分多址(TDMA)传输突发信息符号的扩谱通信系统的精同步问题。文中概述了两种精同步的方法,分析和计算了它们的同步性能,并给出了一种同步方法的实验结果和数据。
One of the most basic tasks in spread spectrum communication is to realize the synchronization between the local pseudo-random signal and the received pseudo-random signal. This paper discusses a new precision synchronization method, which is different from the delay lock loop and τ-jitter ring commonly used today. It uses a SAW convolver as the receiver’s programmable matched filter, The phase shift of the local clock is used to adjust the phase of the local clock, which solves the problem of fine synchronization in a spread spectrum communication system of a type of Time Division Multiple Access (TDMA) burst information symbol. In this paper, two methods of fine synchronization are summarized, their synchronization performance is analyzed and calculated, and the experimental results and data of a synchronization method are given.