Tdma satellite communications system operating in wide and narrow aperture modes for receiving bursts of various timing deviations

Abstract From the Canadian patent

In a satellite communications system a time slot assignment signal and, a reference timing signal are transmitted from a central station to terminal stations to allow them to send bursts on assigned time slots and to establish the frame timing. In the central station first and second self-resettable, counters increment their respective binary counts at clock intervals and reset their counts to an initial value at time-slot intervals. A local timing signal is generated synchronously with the reference timing signal and delayed by an amount corresponding to a minimum round-trip propagation delay to reset the first counter. In an initial, wide aperture mode the output of the first, counter is …