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In digital communication systems different clock frequencies of transmitterand receiver usually is translated into cycle slips. Receivers might experiencedifferent sampling frequencies from transmitter due to manufacturingimperfection, Doppler Effect introduced by channel or wrong estimation ofsymbol rate. Timing synchronization in presence of cycle slip for a burstsequence of received information, leads to severe degradation in systemperformance that represents as shortening or prolonging of bit stream. Thereforthe necessity of prior detection and elimination of cycle slip is unavoidable.Accordingly, the main idea introduced in this paper is to employ the GardnerDetector (GAD) not only to recover a fixed timing offset, its output is alsoprocessed in a way such that timing drifts can be estimated and corrected.Deriving a two steps algorithm, eliminates the cycle slips arising from wrongestimation of symbol rate firstly, and then iteratively synchronize symboltiming of a burst received signal by applying GAD to a feed forward structurewith the additional benefits that convergence and stability problems areavoided, as they are typical for feedback schemes normally used by GAD. Theproposed algorithm is able to compensate considerable symbol rate offsets atthe receiver side. Considerable results in terms of BER confirm the algorithmproficiency.

Burst Transmission Symbol Synchronization in the Presence of Cycle Slip Arising from Different Clock Frequencies