Experimental study of useful signal separation from pulse-modulated fluctuation noise in application to hidden data transmission
É. V. Kal’yanov, B. E. Kyarginskiĭ · Technical Physics Letters · 2010
Hidden data transmission at microwave frequencies has been experimentally carried out by masking the useful signal with a continuous random signal of the new type formed from two series of identical fluctuation-noise-carried pulses that are delayed relative to each other by a time equal to the pulse duration.