摘要
信道估计是移动通信系统需要解决的最核心的问题之一,信道估计的精度直接影响到移动通信系统的性能和容量。介绍了目前常用的几种基于导频序列的信道估计技术,分析了不同估计方式的优缺点;同时介绍了几种在时分复用导频辅助估计中能够减小多普勒频移对信道估计影响的插值技术,并对他们进行了比较分析。
Channel estimation is one of kernel techniques in mobile communication system, and the precision directly affects the performance and capacity of system. Different pilot assistant channel estimations in common used are introduced and analyzed. Several interpolation techniques which can mitigate the effects of Doppler frequency on channel estimation for timemultiplexing pilot assistant scheme are also compared and analysed.
出处
《现代电子技术》
2006年第19期1-3,共3页
Modern Electronics Technique
关键词
信道估计
导频辅助估计
插值技术
多普勒频移
channel estimation
pilot assistant estimation
interpolation techniques
Doppler frequency
