Title :
An Adaptive Doppler Shift Estimator in Mobile Communication Systems
Author :
Jingyu, Hua ; Xiaomin, Zhao ; Zhijiang, Xu ; Limin, Meng
Author_Institution :
Zhejiang Univ. of Technol., Hangzhou
fDate :
6/29/1905 12:00:00 AM
Abstract :
In this paper, an adaptive Doppler shift estimator based on the square envelope autocorrelation function of the mobile propagation channel is proposed. Furthermore, the proposed estimator exploits the iterative minimum finding procedure to reduce the effect of additive noise. Both the theoretical analysis and the experiments are provided to show that the proposed method yields fairly good signal-to-noise ratio (SNR) insensitive performance in a wide range of velocities and SNRs
Keywords :
Doppler shift; adaptive estimation; correlation methods; mobile radio; wireless channels; SNR; adaptive Doppler shift estimator; additive noise; mobile communication systems; mobile propagation channel; signal-to-noise ratio; square envelope autocorrelation function; AWGN; Approximation error; Autocorrelation; Doppler shift; Estimation error; Fading; Least squares approximation; Mobile communication; Signal processing; Signal to noise ratio; Autocorrelation function; Doppler shift; mobile propagation channel;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2007.893097
