Design and Implementation of High Speed, High Data Rate Automatic Flywheel Logic for IRS Satellite Series

The Frame synchronizer code for IRS satellites is a PN sequence of 127bits. In the satellite data format the frame sync code has to be detected reliably and efficiently. During real-time when the serial data from satellite is being frame synchronized at ground station, there is a need of perfect frame synchronization at the ground otherwise the whole reference is lost. The frame synchronization once detected will be the frame sync which will be the master reference for decommutation of serial data. There can be a possibility and probability that in the video data bits there may be bits which can be similar to Frame sync code of 127bits. Hence in order to increase the reliability of frame sync detection and avoid the occurrence of false frame sync code detection flywheel logic is required.