%0 Journal Article
%T Particle filtering based algorithm for blind channel estimation in OFDM systems<br>基于粒子滤波的OFDM盲信道估计方法
%A DING Jin-zhong
%A HUANG Yan
%A LI Hao
%A <br>丁金忠
%A 黄　焱
%A 李　浩
%J 计算机应用研究
%D 2012
%I 
%X This paper proposed a particle filtering based algorithm for blind channel estimation. This algorithm modeled the channel in OFDM system as a time-varying auto-regressive model. It implemented channel estimation as follow: got initial channel impulseCIRresponse via subspace-based method, updated CIR and model parameter by a particle filtering algorithm with feedback. Finally, simulation results show that the proposed algorithm not only can estimate invariable channel, but also track time-varying channel. Besides, it converges rapidly.
%K OFDM
%K auto-regressive model
%K subspace decomposition
%K particle filtering
%K feedback<br>正交频分复用
%K 自回归模型
%K 子空间分解
%K 粒子滤波
%K 反馈
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=22653CDAF59BBDC12D353302D8BA47D2&yid=99E9153A83D4CB11&vid=771469D9D58C34FF&iid=9CF7A0430CBB2DFD&sid=E1749900297FC16C&eid=B878311ACFF61122&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=8