FIELD: data transmission using spectrum extension by chaotic signals. SUBSTANCE: method is characterized in that broadband data medium is formed on sending end in predetermined data-transmission frequency band by means of chaotic dynamic system, data medium is modulated by data signal, modulated data medium is transmitted through communication channel from sending end to receiving one and demodulated, regions of parameters of chaotic dynamic system ensuring single-type behavior are detected, and values of parameters ensuring generation of broadband data medium in the form of chaotic data medium with at least desired spectral characteristics are chosen. EFFECT: implementing communication systems wherein data is entered in chaotic signal. 12 cl, 12 dwg
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