ADAPTIVE WINDOWING FOR DIGITAL SYNCHRONIZATION
Original Publication Date: 1987-Oct-01
Included in the Prior Art Database: 2001-Oct-25
In many digital communications systems, synchronization is achieved by detection of adigital pattern which is repeated regularly. An enable signal or "window" can be used to reduce the likelihood of a false detection by disabling the detector circuits between transmissions of the sync pattern. However, prior to acquisition of synchronization, a narrow window can significantly hamper efforts to detect sync. Thus it is desirable to generate a window signal which is open until sync is acquired and then narrows while the sync is locked.