METHOD OF INCREASING STEALTHINESS OF RADIO-FREQUENCY RADIATING MEANS IN PSEUDORANDOM OPERATIONAL FREQUENCY READJUSTMENT RADIO LINK Russian patent published in 2014 - IPC H01Q19/00 H04B1/00 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to radio communication and particularly to methods of increasing stealthiness of radio-frequency radiating means operating with a pseudorandom operational frequency readjustment signal. The transmitting end divides an input signal into information units presented in binary form; a reflected signal arises when a signal is emitted into space at the frequency position f_j of the pseudorandom operational frequency readjustment cycle when an airborne radio reconnaissance means enters the lobe of the beam pattern of the antenna of the radio-frequency radiating means, said signal also propagating towards the antenna of the radio-frequency radiating means. After the radio-frequency radiating means emits the radio signal on said pseudorandom operational frequency readjustment cycle, the frequency of the emitted radio signal f_j changes to f_k. The frequency of the previous pseudorandom operational frequency readjustment cycle f_j for transmission is freed, while simultaneously turning on a receiver tuned to f_j, and analysing presence of a reflected signal. If a reflected signal is present, the radio-frequency radiating means turns off its transmitter for the time during which the airborne radio reconnaissance means flies through lobe of the beam pattern of the antenna.

EFFECT: higher stealthiness of radio-frequency radiating means operating with pseudorandom operational frequency readjustment signals.

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