CLOCK DRIFT COMPENSATION METHOD AND APPARATUS

摘要

A method and system to compensate for a drift between a first signal (110) and a second signal (120) is disclosed. The system includes a drift estimator (600) and a resampler (602). The drift estimator (600) receives, as input, for a predetermined amount of time, a first data set containing information related to a sample rate of the first signal (110) and a second data set containing information related to a sample rate of the second signal (120), and produces a one-time estimate of a drift between the first signal (110) and the second signal (120) based on the first data set and the second data set during the predetermined amount of time. The resampler (602) resamples the first signal (110) according to the estimated drift to compensate for the drift between the first signal (110) and the second signal (120).