Message transmission using RF chaotic modulation‐demodulation system
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Abstract
Abstract This paper describes a technique for transmitting information using a RF chaotic modulation–demodulation system. This system is composed of two parts: (i) a modulation–demodulation circuit, which is constructed using a chaotic Colpitts oscillator and (ii) an interface circuit, which is constructed using wideband OP and passive elements. The information is masked by adding a RF chaotic signal to be transmitted, and is obtained by subtraction of the chaotic signal at the receiver. The results of both practical experiments and simulations are presented to verify our approach. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 321–324, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20811
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