论文部分内容阅读
本文讨论了基于串行滑动相关法捕获的DS扩频系统中的自动频率控制技术,分析了系统频差对扩频码捕获、跟踪及解调的影响,提出一种实现直接序列扩颗卫星通信系统的AFC方法,该方法能解决在较大系统频差下扩频码的同步问题。
This paper discusses the automatic frequency control technique in DS spread spectrum system based on serial sliding correlation method, analyzes the effect of system frequency difference on the acquisition, tracking and demodulation of spreading code, and proposes a method to realize direct sequence spread spectrum satellite communication System AFC method, this method can solve the problem of spreading code synchronization under the large system frequency difference.