Title :
A current-mode chaotic oscillator
Author :
Souliotis, George ; Giannakopoulos, Konstantine ; Fragoulis, Nikos
Author_Institution :
Dept. of Phys., Patras Univ., Rio-Patras
Abstract :
A current-mode chaotic oscillator based only on current mirrors is studied. The oscillator is suitable for synchronization and application in secure communications. It operates on high frequencies and is suitable for on chip implementation. Its chaotic behavior is controlled by means of a bias voltage. Various methods for detecting chaos, such as the Lyapunov exponents, the Lyapunov dimension, the spectrum and the phase portraits are used, in order to confirm the chaotic behavior of the circuit. Simulation results fully coincide with theoretical results
Keywords :
Lyapunov methods; chaos; current mirrors; current-mode circuits; network analysis; oscillators; Lyapunov dimension; Lyapunov exponents; chaos detection; current mirrors; current-mode chaotic oscillator; phase portraits; secure communications; Chaos; Chaotic communication; Circuit simulation; Communication system control; Frequency synchronization; Mirrors; Operational amplifiers; Resistors; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1692563
