WINDOWING TECHNIQUE FOR ADAPTIVE CLOCK RECOVERY AND OTHER SIGNAL-PROCESSING APPLICATIONS

摘要

In one embodiment, an adaptive clock recovery (ACR) system generates a current delay-offset estimate value (D_OE(i)) using a window technique that selects the larger of (i) the maximum delay-offset value (D_OP) in the previous window and (ii) the maximum delay-offset value so far (D_OM) in current window. This windowing technique can be implemented without having to store all of the individual values over a specified window size, as in a conventional sliding window technique. This windowing technique can be used to find extreme (i.e., either maximum or minimum) values for applications other than ACR systems.