Title :
A Novel Doppler Frequency Offset Estimation Method for DVB-T System in HST Environment
Author :
Yang, Lihua ; Ren, Guangliang ; Qiu, Zhiliang
Author_Institution :
State Key Lab. of ISN, Xidian Univ., Xi´´an, China
fDate :
3/1/2012 12:00:00 AM
Abstract :
A novel Doppler frequency offset estimation method is proposed for the digital video broadcasting-terrestrial (DVB-T) system in the high-speed-train (HST) environment. Based on the analysis of the effect of the scattered components of the wireless channel on the accuracy of the Doppler frequency offset estimation, we separate the path with the Line-of-Sight(LOS) component from the multipath channel, and only use it to estimate the frequency offset caused by Doppler shift. Simulation results show that the mean square error (MSE) of the proposed scheme is far better than those of the available schemes.
Keywords :
Doppler shift; digital video broadcasting; frequency estimation; mean square error methods; multipath channels; wireless channels; DVB-T system; Doppler frequency offset estimation method; Doppler shift; HST environment; LOS component; MSE; digital video broadcasting-terrestrial system; high-speed-train environment; line-of-sight component; mean square error; multipath channel; wireless channel; Accuracy; Channel estimation; Digital video broadcasting; Doppler effect; Estimation; Frequency estimation; OFDM; Digital video broadcasting-terrestrial (DVB-T); Doppler frequency offset estimation; high-speed-train (HST); line-of-sight (LOS);
Journal_Title :
Broadcasting, IEEE Transactions on
DOI :
10.1109/TBC.2011.2170609
