摘要
针对对流层散射信道的特征,设计了基于信道探测的对流层单载波传输方案,论述了其原理,从理论上分析了其性能,并与最佳合并的多重分集性能作了对比,实验模型的实测结果与理论分析结果有较高的一致性,证明了理论分析的正确性。这一理论用于实践可以显著地简化设备,对通信系统的研发具有较高的参考价值。
The single carrier signal transmission scheme based on channel-detecting in troposcatter communication was introduced according to the characters of the troposcatter channel. Theory analysis and performance evaluation of the troposcatter modem employing this technique were also presented. Finally, comparison between this modem and systems which adopts the best diversity combination was given, which shows highly accordance with theoretical analyzing. Besides, complexity of troposcatter communication systems can be greatly reduced by adopting this technique, and it has important reference for development of troposcatter communication.
出处
《通信学报》
EI
CSCD
北大核心
2008年第2期129-133,共5页
Journal on Communications
基金
国家自然科学基金资助项目(60502046)~~
关键词
散射通信
单载波信息传输
分集
瑞利衰落
troposcatter communication
single carrier signal transmission
diversity
Relay fading
