A METHOD FOR SIGNAL PROCESSING AND A SIGNAL PROCESSOR IN AN OFDM SYSTEM
摘要
<p>A method of signal processing for a receiver for OFDM encoded digital signals, for counteracting inter-carrier interference (ICI) caused by Doppler broadening. The OFDM encoded digital signals are transmitted as sub-carriers in several channels, which form OFDM blocks. The method comprises estimation of a channel transfer function (H1) by a channel estimation scheme in each sub-carrier and estimation of data (a1) by a data estimation scheme from said channel transfer function (H1) and a received signal (yo). Then, a derivative (Hj') of said channel transfer function in each sub-carrier is estimated by a temporal filtering; and the inter-carrier interference (ICI) is removed from said received signal by using the estimated data (â1) and the estimated derivative (Hj' ) of the channel transfer function in order to obtain a cleaned received signal (y1).</p>
申请公布号
WO2005117381(A1)
申请公布日期
2005.12.08
申请号
WO2005IB51685
申请日期
2005.05.24
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;BAGGEN, CONSTANT, P., M., J.;HUSEN, SRI, A.;STASSEN, MAURICE, L., A.;TSANG, HOI, Y.
发明人
BAGGEN, CONSTANT, P., M., J.;HUSEN, SRI, A.;STASSEN, MAURICE, L., A.;TSANG, HOI, Y.