摘要
近年来,信道估计技术作为宽带移动通信系统中的关键技术得到了广泛的关注。研究了OFDM系统中基于导频的信道估计方法,主要比较了LS和MMSE两种信道估计准则,并讨论了3种信道估计的内插算法:平均值法、线性内插法和DFT内插法,最后使用MATLAB软件进行仿真比较并得出结论。
As the key technology in Broadband Mobile Communication system, Channel Estimation has been a popular research in recent years. And this paper study the channel estimation based on the pilot in OFDM system, compare the LS with the MMSE channel estimation rule, discuss the three interpolation algorithms for channel estimation including mean interpolation, linear interpolation and DFT interpolation, and make the conclusion from the simulation by the MATLAB software.
出处
《国外电子测量技术》
2010年第1期20-23,共4页
Foreign Electronic Measurement Technology
关键词
OFDM
导频
信道估计
内插
OFDM
pilot
channel estimation
interpolation
