CLASSICAL Lü CHAOTIC SYSTEM SWITCHING METHOD AND CIRCUIT WITH DIFFERENT^{FRACTIONAL ORDERS}

摘要

Provided are a classical Lü chaotic system switching method and circuit with different^{fractional orders. An operational amplifier U1, an operational amplifier U2 and a resistor and a capacitor are utilized for constituting an inverting adder and an inverting integrator with different fractional orders, a multiplier U3 and a multiplier U4 are utilized for achieving multiplication operation, and an analogue switch U5 is utilized for achieving selective output of analogue signals. LF347Ds are adopted for the operational amplifier U1 and the operational amplifier U2, AD633JNs are adopted for the multiplier U3 and the multiplier U4, and an ADG888 is adopted for the analogue switch U5. The operational amplifier U1 is connected to the multiplier U3, the multiplier U4 and the analogue switch U5, the operational amplifier U2 is connected to the multiplier U3 and the analogue switch U5, the multiplier U3 is connected to the operational amplifier U1, the multiplier U4 is connected to the operational amplifier U2, and the analogue switch U5 is connected to the operational amplifier U1 and the operational amplifier U2. Proposed are a novel switching method and circuit for a novel chaotic system, which provides a new thought for increasing chaotic system switching types and applying such a chaotic system to engineering practices.}