Synthesis of a fully-integrated digital signal source for communications from chaotic dynamics-based oscillations

Show simple item record Glenn, Chance 2003-12-17T16:43:14Z 2003-12-17T16:43:14Z en_US 2003
dc.identifier.citation Dissertation - Johns Hopkins University 2003 en_US
dc.description.abstract This work is the conceptualization, derivation, analysis, and fabrication of a fully practical digital signal source designed from a chaotic oscillator. In it we show how a simple electronic circuit based upon the Colpitts oscillator, can be made to produce highly complex signals capable of carrying digital information. We show a direct relationship between the continuous-time chaotic oscillations produced by the circuit and the logistic map, which is discrete-time, one-dimensional map that is a fundamental paradigm for the study of chaotic systems. We demonstrate the direct encoding of binary information into the oscillations of the chaotic circuit. We demonstrate a new concept in power amplification, called syncrodyne amplification, which uses fundamental properties of chaotic oscillators to provide high-efficiency, high gain amplification of standard communication waveforms as well as typical chaotic oscillations. We show modeling results of this system providing nearly 60-dB power gain and 80% PAE for communications waveforms conforming to GMSK modulation. Finally we show results from a fabricated syncrodyne amplifier circuit operating at 2 MHz, providing over 40-dB power gain and 72% PAE, and propose design criteria for an 824 -850 MHz circuit utilizing heterojunction bipolar transistors (HBTs), providing the basis for microwave frequency realization. en_US
dc.description.sponsorship Syncrodyne Systems Corporation en_US
dc.format.extent 2624363 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en_US en_US
dc.publisher Chance M. Glenn, Sr. en_US
dc.subject Chaos en_US
dc.subject Circuit en_US
dc.subject Communications en_US
dc.subject Control en_US
dc.subject Digital en_US
dc.subject Dynamics en_US
dc.subject Efficiency en_US
dc.subject Encoding en_US
dc.subject Microwave en_US
dc.subject Oscillator en_US
dc.subject Power added efficiency en_US
dc.subject Power amplification en_US
dc.subject Power gain en_US
dc.subject Telecommunications en_US
dc.title Synthesis of a fully-integrated digital signal source for communications from chaotic dynamics-based oscillations en_US
dc.type Thesis en_US

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