METHOD FOR RADIO JAMMING OF SATELLITE CONTROL CHANNELS Russian patent published in 2021 - IPC H04K3/00 

FIELD: radio engineering.

SUBSTANCE: invention relates to the field of radio engineering, namely to a technology of creating artificial radio interference, and, particularly, can be used for radio jamming (RJ) of satellite command and program radio lines (CPRL) for controlling spacecrafts (SCs) located in low Earth orbits (LEO), operating via data relay channels of spacecrafts (SCs) of space data relay systems (SDRSs). To realize the technical result, signals are received from the emission source installed on the suppressed SC, retransmitted through the relay spacecraft (RSC) in all working frequency ranges. The detected signal is identified as the "Earth-RSC-SC" CC signal. Attribution of the detected "Earth-RSC-SC" CC signal to the suppressed SC is determined. The value of the frequency of the "SC-RSC-Earth" CC is determined and stored. An interference signal is generated, modulated, amplified and emitted at a frequency corresponding with the previously stored value of the frequency of the "SC-RSC-Earth" CC. Efficiency of RJ of the CC is estimated by means of continuous monitoring of the information on the counter of frame numbers of telecommands from the ground control station. If the received values of the counter of frame numbers have gaps in the emission source signal, then the RJ is considered effective, otherwise, the effective isotropically emitted power of the interference signal is iteratively increased and the efficiency of RJ of the CC is estimated until gaps in telecommand frame numbers appear in the received "Earth-RSC-SC" CC signal at the latest iteration.

EFFECT: development of a method for RJ of satellite CCs, providing selective RJ of satellite CCs of suppressed spacecrafts outside of the direct radio visibility area of an automated jamming station.

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