METHOD OF HIDDEN INFORMATION TRANSFER Russian patent published in 2009 - IPC H04L9/00 

FIELD: physics, radio.

SUBSTANCE: invention concerns a radio engineering and an information transfer and application in communication systems for unjammable transmission of the numeral information with a certain degree of confidentiality can find. In an expedient of the latent information transfer the useful signal code in a dyadic code, shape by means of the first chaotic generator the initial determined chaotic signal by modulation of parameters of a chaotic signal by the useful numeral signal, transmit the signal generated thus on a communication channel to a receiving party where it divide into two identical signals with which influence the second and third chaotic generators. The second and third chaotic generators are identical each other on driving parameters and are chosen with possibility of maintenance of a mode of the generalised sync with the first chaotic generator. Obtained from outputs of the specified second and third generators signals submit on subtracting device and at observation or lack of chaotic oscillations spot presence of the useful numeral signal presented in the form of a dyadic code. The determined chaotic signal generated by the first chaotic generator before transmission on a communication channel with the noise signal yielded by the generator of noise, thus the first chaotic generator and the noise generator attune in a mode at which signal/noise SNR satisfies the relation to a following requirement: SNR>- 34.6 dB.

EFFECT: pinch of reliability and making of additional privacy.

1 cl, 2 dwg