DETECTION METHOD OF THE CONTROL CHANNELS OPERATION BY THE UNMANNED FLYING VEHICLE Russian patent published in 2018 - IPC H04K3/00 

FIELD: aviation.

SUBSTANCE: invention can be used in the radio reconnaissance equipment of the electronic suppression (ES) facility of the aircraft control system (UFV). The effective UFV ES, including jamming or interception of UFV control, is possible through the direct control channel, the concealment of which is provided by the limited direct visibility between the UFV surface control station (SCS) and the ES facility, the narrow directionality of the SCS transmitting antenna in both planes, as well as the interference immunity measures of the control system. The searching radio reconnaissance is preceded to the electronic suppression, and in the electronic suppression process - control radio reconnaissance with the operation algorithm cycle of the ES facility, during which the carrying frequency, the time and frequency structure of the reverse control channel signal is determined, the telemetry signal copy, corresponding to the narrowband part of the reverse control channel signal spectrum is formed, the probing is executed by the copy of the signal with the linear frequency change in the expected band until the signal frequency change moment in the reverse control channel. The probing signal frequency value is fixed, the wavelength separation of the reverse and probed signals is calculated and the information exchange order over the data transmission channels is determined.

EFFECT: expansion of the suppressed electronic facilities class, based on the detection results and information exchange order opening in the control channels.

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