Method and apparatus for synchronizing clock using resynchronization in interactive satellite system, and interactive satellite system using thereof

摘要

The present invention relates to a two-way satellite communication system, in particular, the forward link conforms to the DVB-S standard , apparatus and method using a TDMA multiple access method for a reverse link in the construction of a two-way satellite communication system, the terminal station to enable high-speed data communication using a general commercial DVB-S receiver card to maintain a stable clock recovery . relates to the ; The process according to the invention and storing an MPEG2 packet data received from the DVB-S receiver in a buffer; Recovering the received data clock is stable; Comparing the number of clock buffers to be generated between the starting point and the predetermined value to detect the start of the MPEG2 packet data received from the DVB-S receiver to recover the received data clock is stable; Steps of averaging the results of the comparison; and a step of filtering the average value by using a digital loop filter.