%0 Journal Article
%T Subspace Tracking Channel Estimation for Training-Sequence-Based OFDM Systems with Transmitter Diversity<br>基于训练序列的发射分集OFDM系统的空时子空间幅度跟踪信道估计
%A Xu Xin
%A Cai Yue-ming
%A Xu You-yun
%A <br>徐信
%A 蔡跃明
%A 徐友云
%J 电子与信息学报
%D 2005
%I 
%X Since the channel has slowly-varying delays and directions of arrival and fast-varying faded amplitudes, benefits can be obtained by space-time processing base these channel features. In this paper, the space-time subspace and amplitude tracking algorithms using adaptive filtering technique are proposed by taking a training-sequence-based OFDM system with transmitter diversity as a multi-slot communications system and the channel estimation performance is observably improved. At the same time, this paper gives some simulations and comparisons of the performance of the different tracking algorithms.
%K OFDM
%K Training sequence
%K Space-time processing
%K Channel estimation
%K Subspace tracking<br>正交频分复用
%K 训练序列
%K 空时处理
%K 信道估计
%K 子空间跟踪
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=2B50B762D28B778F&yid=2DD7160C83D0ACED&vid=DB817633AA4F79B9&iid=CA4FD0336C81A37A&sid=A4FA325EA800C820&eid=89F76E117E9BDB76&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=1&reference_num=5