Timing synchronization and blind equalization of digital communication signals can be compared to the chicken and the egg problem. Timing synchronization algorithms [1] work well on equalized signals. Blind equalization algorithms based on cyclostationary work well on perfectly time synchronized signals. The question remains what to do at the start of a signal, where we have neither perfect timing synchronization nor an estimate of the channel for equalization. We propose 1) a new timing synchronization algorithm for phase shift keying signals, based on short time cyclostationary cumulants based blind equalization algorithm.The timing algorithm is compared to traditional 2) a new cyclostationary autocorrelation/cumulant slice timing methods using nonlinearities.
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