摘要
多重直扩信号的快速捕获是卫星定位与通信系统研制过程中遇到的一个关键技术。它的实现，不仅可以提高系统的多址能力，而且也是系统实现的必要条件。本文阐明了多重信号产生的原因以及可被分离并有效接收的理论依据。提出了一种多重信号快速捕获的方法，给出了硬件实现的方案和部分实验结果。
Fast acquisition for overlapping DS-signals is an important issue in developing positioning and communication systems based on satellite.If the technology is feasible,it will not only increase capabilities of multiple access of the system, but also become an indespensable condition of realizing the system. The paper clarifies the source of overlapping DS-signals and the theoretical basis for distinguishing overlapping DS-signals.The hardware realization scheme and part of the measured resultes are given.
出处
《通信学报》
EI
CSCD
北大核心
1996年第6期56-61,共6页
Journal on Communications
关键词
卫星通信
扩展频谱
信号捕获
satellite communication
spread spectrum
fast acquisition
