Blind synchronization and Doppler spread estimation for MSK signals in time-selective fading channels
نویسندگان
چکیده
Blind synchronization of Minimum-Shift-Keying signals in the context of time-selective fading communication channels is considered. Strictly feedforward algorithms based on second-and fourth-order cyclic statistics are proposed for frequency and timing ooset estimation. The new esti-mators are shown to outperform existing methods. Extensions of the algorithm to GMSK are also studied. Finally, fourth-order cyclic statistics are shown to provide an accurate estimate of the Doppler spread.
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