METHOD OF PROTECTING RADAR STATION FROM ANTI-RADAR MISSILE BASED ON ADDITIONAL ACTIVE RADIATION SOURCES Russian patent published in 2014 - IPC G01S7/38 

FIELD: radio engineering, communication.

SUBSTANCE: invention can be used to protect ground-based radar stations from attack by radiation target-seeking anti-radar missiles using additional radiation sources. In the existing method of protecting radar stations from anti-radar missiles based on two active additional radiation sources, radiation pulses of which lag behind a radio signal from the radar station, wherein the carrier frequency, duration, repetition period of noise signals and radar signal are equal, the additional radiation sources and the radar station are arranged on the same line at a distance of 50-150 m from each other, the additional radiation sources also perform delayed emission of radio signals relative the radio signal from the radar station, wherein delay of the radiation pulses of the additional sources is performed according to a random law in the range from 0 to τ_i, where τ_i is the duration of the radar pulse, the switching frequency of radiation moments of the additional radiation sources is selected equal to 0.5-1.5 Hz, and radar pulses are emitted with a delay of t_ld which is equal to the propagation time of the radar pulse in the link between the radar station and the additional radiation source t_ls and time equal to half the duration of the radar pulse $$t_{ld}=t_{ls}+\frac{{\tau }_i}{2}.$$

EFFECT: improved protection of a radar station from anti-radar missiles.

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