摘要
为了满足对宽带、多媒体通信的需求,卫星通信中许多有效的容量倍增技术被广泛运用,成对载波多址复用技术是其中一种。文章介绍了成对载波多址技术的基本概念,分析了系统处理全过程中的关键技术,进而提出了一种适合成对载波多址系统的干扰信号延时的估计算法,并对其性能进行了仿真。仿真结果表明,该算法在一定的频偏范围内,能够准确捕获信号时延并精确跟踪。
After a brief description of the basic conception of PCMA technology, the key technology in the whole process of the system is analyzed. And a method of interference delay estimation is proposed and simulated. Simulation results show that the capturing and tracking performance is fast and accurate in a certain carrier-frequency error range.
出处
《信息与电子工程》
2006年第1期49-52,共4页
information and electronic engineering
