摘要
扩频正交频分复用系统中的分集合并技术是提高系统可靠性的重要手段,在简要介绍扩频正交频分复用系统基础上,探讨几种典型的分集合并技术,包括正交性恢复合并、等增益合并、最大比合并、最小均方差合并、控制均衡,并进行了综合比较.指出扩频正交频分复用系统在各种情况下所宜采取的分集合并方案.
The diversity combination is a very important way to advance system reliability in Spread OFDM system, without doubt, for the complex mobile system. The article discussed some kind typical diversity combination techniques on the base of introducing the spread OFDM system. They include ORC, EGC,. MRC, MMSEC, CE. Comparing them, the writer elicits that spread OFDM system should use different diversity combination techniques in the different cases.
出处
《大连海事大学学报》
CAS
CSCD
北大核心
2007年第1期138-141,共4页
Journal of Dalian Maritime University
