Apparatus of timing recovery system and Recovering method of the same

摘要

The present invention relates to timing recovery in a digital transmission system, more specifically to the sample rate MMSE symbol to an apparatus and method for recovering timing by using a timing error detector. According to the present invention, controlling the timing error detector and the timing error between the detected symbol receiving a value for detecting a transition point, the timing error by using a stochastic gradient algorithm to receive the signal in the tracking mode, sampled at the symbol rate sample to the symbol synchronizer to match the symbol synchronization, the sampled signal includes the SNR estimator for calculating the SNR value for the acquisition and tracking mode switching from the timing recovery device is configured to provide. Thus, the tracking mode has been applied to timing recovery MMSE timing recovery scheme jimyeo to excellent tracking performance for a ghost (ghost), is the sample rate of the symbol using a channel equalizer has the effect of reducing the hardware cost.