|Budget Amount *help
¥3,400,000 (Direct Cost : ¥3,400,000)
Fiscal Year 1998 : ¥1,900,000 (Direct Cost : ¥1,900,000)
Fiscal Year 1997 : ¥1,500,000 (Direct Cost : ¥1,500,000)
It is known that, in star coupled oscillators with one register, when the number of oscillators is prime number, n phase synchronized oscillations ocurrs. Especially when n is 4, we can not see the 4 phase oscillation and only two pairs of antiphase oscillations.
In this research, we studied the phenomena of 4 coupled oscillators with different natural frequencies, and we could find that both 2 indepent pairs of anti phase synchronized phenomena, and 4 phase synchronized oscillations exist.
If the nonlinear characteristic of negative resistance in oscillators are anti-symmetrical, 4 phase synchronized oscillation ocurrs, in star coupled system, and more over, network system by 4 coupled oscillators as a network elements, synchronized phase pattern ocurrs in the networks, and this 4 coupled oscillators are useful as an element of cellullar neural networks.
In full coupled chaos oscillators by capacitor, 4phase chaotic synchronizations can be seen. And we studied coupled systems with two defferent type chaos oscillators.