Аpplied method for carrier frequency restoration of telemetry systems signal by digital processing

The paper considers the issue of restoring the level of the telemetry signal carrier frequency at digital processing in the automatic carrier control tract and the calculation of the threshold for taking the decision about the validity of received symbol of information from the spacecraft and carrier rocket. We describe the applied method and algorithm for calculating the level of the carrier frequency and the level of threshold for taking the decision based on histogram processing of the signal from the output of the frequency detector.