Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2008
Session Number:P2
Session:
Number:P2-97
Multiple Autocorrelation Function-based Maximum Doppler Frequency Estimation
Jong-Gun Moon, Se-Bin Im, Hee-Jin Roh, Hyung-Jin Choi,
pp.-
Publication Date:2008/7/7
Online ISSN:2188-5079
Summary:
We propose a modified ACF-based Doppler frequency estimation algorithm for OFDM systems. The traditional ACF-based estimation scheme has a trade-off relationship between estimation range of the maximum Doppler frequency and the corresponding performances such as convergence time and steady-state jitter. Since this relationship depends on correlation interval between two OFDM symbols, it is important to design a flexible algorithm in known channel environment. Therefore, we propose an algorithm to guarantee stable performances such as estimation range and steady-state jitter regardless of correlation interval.