Title :
Super-Resolution Time Delay Estimation Algorithm Based on the Frequency Domain Channel Model in OFDM Systems
Author :
Li, Jing ; Pei, Liang ; Cao, Maoyong ; Yu, Daoyin
Author_Institution :
Key Lab of Opto-Electron. Inf. & Tech. Sci. Minist. of Educ., Tianjin Univ.
Abstract :
The parametric model of the actual multi-path channel in frequency-domain was presented, the frequency-domain-based cross-spectral super-resolution TDE algorithm(MUSIC) was proposed. The channel model of the OFDM systems in the frequency-domain was briefly introduced and the expression of the channel response was given with which the algorithm can be efficiently realized. The simulation results show the super-resolution capability of the algorithm and the ranging error is no more than 18 cm in the condition of SNR=0dB and BW=20MHz
Keywords :
OFDM modulation; delays; multipath channels; MUSIC algorithm; OFDM systems; frequency domain channel model; frequency-domain-based cross-spectral super-resolution TDE algorithm; multipath channel; radio ranging; subspace decomposition; super-resolution time delay estimation algorithm; Delay effects; Delay estimation; Electronic mail; Frequency domain analysis; Frequency estimation; OFDM; Propagation delay; Signal resolution; Time domain analysis; Working environment noise; cross-spectrum; radio ranging; sub-space decomposition; super-resolution; time delay estimation(TDE);
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1713371
