CHEN En-qing, TAO Ran, ZHANG Wei-qiang. A Method for Time-Varying Channel Parameter Estimation Based on Fractional Fourier Transform[J]. Acta Electronica Sinica, 2005, 33(12): 2101-2104.
CHEN En-qing, TAO Ran, ZHANG Wei-qiang. A Method for Time-Varying Channel Parameter Estimation Based on Fractional Fourier Transform[J]. Acta Electronica Sinica, 2005, 33(12): 2101-2104.DOI:
Time-varying fading channel greatly challenges the accurate channel estimation.This paper proposes a method for time-varying channel parameter estimation based on fractional Fourier transform.According to the channel parametric model
a multicomponent LFM signal is sent to detect the channel.At the receiver
fractional Fourier transform is implemented to estimate the parameters of LFM signal and finally obtain the parameters of time-varying channel.Theoretical analysis and simulation results show that the proposed algorithm exhibits good performances and has a low computational complexity.