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Telecommunications and Radio Engineering
SJR: 0.203 SNIP: 0.44 CiteScore™: 1

ISSN Imprimir: 0040-2508
ISSN On-line: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v75.i5.20
pages 401-411

KEYING OF THE BROADBAND CHAOTIC SIGNAL SPECTRUM FOR DATA TRANSMISSION

O. V. Zemlyanyi
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085, Ukraine

RESUMO

In the advanced radar and telecommunication engineering, chaotic signals are considered to be an efficient solution enabling one to extend the functional capabilities and enhance the characteristics of the developed hardware. The author suggests a data transmission technique based on chaotic signals generated by a nonlinear dynamic system with a delayed circular-type feedback. A modulating data sequence governs a parameter of a nonlinear component, thus inducing a switch of the chaotic modes as the spectrum structure of the signal, transmitted into the coupling channel, changes. The noncoherent reception is used to demodulate the received data. This paper proves the efficiency of the suggested data transmission technique if applied in secure communication systems in a high interference signaling environment.


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