Memristor chaotic signal generator implemented based on diode bridge
A technology of chaotic signals and diode bridges, which is applied in the direction of pulse generation with predetermined statistical distribution of parameters, safety communication devices, digital transmission systems, etc., can solve the problems of difficult structure transplantation, no memory function, etc., and achieve simple structure and advanced development Effect
Inactive Publication Date: 2014-09-03
CHANGZHOU UNIV
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However, its structure is not easy to transplant and has no memory function. The general chaotic system has a sensitive dependence on the initial state. Under different initial states, the evolution of the system trajectory over time is unpredictable, and the trajectory is always limited to a certain Chaos Attraction Field
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[0025] see figure 1 , a simple memristive chaotic signal generator circuit based on a diode bridge is constructed as figure 1 as shown, figure 1 Contains four state variables, which are capacitance C 1 voltage across v 1 ,capacitance C 2 voltage across v 2 , flows through the inductance L electric current i L , the internal state variable of the memristor M is the voltage across the capacitor C v C . The main circuit includes: negative resistance G, capacitor ,capacitance , inductance L, diode bridge cascaded RC filter composed of a memristor M; where the positive and negative ends of the negative resistance G are connected to the capacitance The positive and negative terminals of the memristor M are connected to each other, which are recorded as a and b terminals respectively; The positive and negative terminals of the inductor L are connected to each other, and are recorded as terminals c and d respectively; the terminals a and c are respectively conn...
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The invention discloses a memristor chaotic signal generator implemented based on a diode bridge. The memristor chaotic signal generator is characterized in that a memristor M, which is formed by cascading the diode bridge and an RC (Resistor-Capacitor) filter, comprises a diode D1, a diode D2, a diode D3, a diode D4, a resistor R and a capacitor C, wherein the cathode end of the diode D1 is connected to the cathode end of the diode D2 and the connecting end is marked as an end e; the anode end of the diode D2 is connected to the cathode end of the diode D3 and the connecting end is marked as an end f; the anode end of the diode D3 is connected to the anode end of the diode D4 and the connecting end is marked as an end g; the cathode end of the diode D4 is connected to the anode end of the diode D1 and the connecting end is marked as an end h; the end h and the end f are respectively connected to the anode end and the cathode end of a capacitor C2; the anode end and the cathode end of the resistor R are respectively connected to the anode end and the cathode end of the capacitor C. A Chua's diode in a normalized Chua's circuit is replaced by a memristor equivalent circuit, which has the advantages of simple structure and double-end input characteristic, and is formed by cascading the diode bridge and the RC filter, and a variety of chaotic phenomena can be generated through adjusting system parameters.
Description
technical field [0001] The invention relates to a signal generator, in particular to a memristive chaotic signal generator realized based on a diode bridge. Background technique [0002] In 1971, Chua L O, a Chinese scientist at the University of California, Berkeley, theoretically predicted the fourth element, memristor, in addition to the three basic elements of resistance, inductance, and capacitance, based on the completeness principle of the combination of basic variables of the circuit. The existence of memristors, and proposed memristive devices and systems in 1976. Afterwards, in May 2008, Hewlett-Packard Nature The realization of memristors is reported for the first time in the journal. Because the memristor is a nonlinear element with memory function and the simplest element for constructing nonlinear circuits and systems, its participation will surely realize a series of new chaotic circuits. [0003] Since the famous MIT meteorologist Lorenz proposed the first...
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IPC IPC(8): H04L9/00H03K3/84
Inventor 包伯成于晶晶胡丰伟姜盼王春丽
Owner CHANGZHOU UNIV