Time slot synchronization method for TDMA/MF-TDMA satellite communication system

The invention discloses a time slot synchronization method for a TDMA/MF-TDMA satellite communication system, and the method comprises the steps: employing a random competition mechanism in an initial synchronization stage, and employing a timing period transmission strategy in a time slot synchronization maintenance stage; the method comprises the following steps: S1, taking the time of a central station as a reference, and enabling the central station to use a forward link to time each far-end station through a TOD frame, so that each far-end station and the central station are kept unified in time; s2, calculating the path time delay of each far-end station in a mode of assisting a closed loop by the central station, and enabling each far-end station to complete burst communication in the time slot distributed by the far-end station; and S3, in a time slot synchronization keeping stage, the far-end station calculates a current frame number and a time slot number according to the local TOD counter value and