Filter loop structure for synchronization in a mobile...

Pulse or digital communications – Synchronizers

Reexamination Certificate

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Reexamination Certificate

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07016444

ABSTRACT:
Filtering loop and method for maintaining synchronization between a receiver and a transmitter reduces overhead and enables more robust operation. The method includes the step of receiving an error signal corresponding to a synchronization parameter. A first order filter is applied to the error signal such that a residual signal results. The method further provides for compensating the residual signal for drift such that the compensated residual signal estimates a rate of change in the residual signal. By compensating the residual signal for drift, difficulties associated with time lag and signal degradation are obviated.

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