METHOD OF MAINTAINING COHERENCE OF MODULATED RADIO SIGNALS Russian patent published in 2013 - IPC H03C3/00 

FIELD: radio engineering, communication.

SUBSTANCE: method of maintaining coherence of modulated signals is based on receiving, at a moving object, continuous or pulsed vibrations of a radiating radar station with speed selection; modulating the received vibrations and radiation thereof from spaced apart points of the object towards the service sector of the radar station, wherein the received vibrations are divided according to power; generating variable frequency voltage; phase-modulating the first divided vibration by the obtained voltage, wherein the vibration frequency is varied towards increase or reduction from the frequency of the received vibration to a value corresponding to the selected false Dopper frequency, after which the selected modulation frequency is kept constant; the modulated vibration is split into three components; the first and second components are phase-modulated; the third component is clarified with the modulated first and second components; the clarified vibrations are successively radiated with a meander frequency and additional relay channel is also formed.

EFFECT: high probability of maintaining coherence of generated radio signals.

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