Blind Carrier Frequency Offset Estimation in Weighted Fractional Fourier Transform Communication Systems

摘要

In this study, a blind carrier frequency offset (CFO) estimationmethod is proposed using the time-frequency symmetry of thetransmitted signals of a weighted Fourier transform (WFrFT) communicationsystem. Blind CFO estimation is achieved by focusing on the propertythat results in matching the signal waveforms before and after the Fouriertransform when the WFrFT parameter is set to a certain value. Numericalsimulations confirm that the proposed method is more resistant to Rayleighfading than the conventional estimation methods.