Memristive feedback type two-way unipolar bias adjustable chaotic oscillator

Abstract

The invention discloses a memristor feedback type two-way unipolar bias adjustable chaotic oscillator, which comprises a first integral branch, a second integral branch, a sign function branch, an absolute value function branch and a memristor simulation unit branch, and outputs a two-way unipolar bias adjustable chaotic signal. According to the memristive chaotic oscillator, bias control and access control of memristive chaotic signals are achieved through the adjustable direct current power supply voltage in the second branch and the initial voltage of the capacitor in the first branch, the memristive chaotic oscillator is provided with two independent control knobs, the flexibility of hardware circuit regulation and control is improved, the difficulty of circuit regulation and control is greatly reduced, and the circuit regulation and control efficiency is improved. And research of the memristor chaotic oscillator in application fields of signal transmission detection and the like is facilitated.

Description

technical field [0001] The invention belongs to the technology of electronics, communication and information engineering, in particular to a memristive feedback type dual-channel unipolar bias adjustable chaotic oscillator. Background technique [0002] Memristor is considered to be a new circuit design element, and its unique nonlinearity makes memristor also suitable for constructing chaotic systems, outputting chaotic attractors with initial value sensitivity and quasi-randomness, which can be applied to image encryption and other applications. Fluid bidirectional agitation, etc. The bias control of a general memristive chaotic circuit requires multiple components to implement, which is complicated and lacks reliability. [0003] At present, the bias regulation of memristive chaotic circuits is inflexible and selective. Generally, the bias needs to be regulated by multiple components, and the polarity of the output signal is also of a single polarity type, which is not c...

AI Technical Summary

Problems solved by technology

The bias control of general memristive chaotic circuits requires multiple components to realize, which is complicated and lacks reliability.

[0003] At present, the bias control of the memristive chaotic circuit is not flexible and the selectivity is not strong. Generally, multiple components are used to control the bias, and the polarity of the output signal is also a single polarity type, which is not conducive to waveform adjustment, thus Difficult to meet the requirements of chaotic signal engineering applications

[0004] Regarding the memristor chaotic circuit, the patent [authorization number ZL202010820774.4] realizes a chaotic system with unique dynamic behavior by adding the magneto-controlled memristor model to the Duffing chaotic oscillator circuit structure, which can generate unique complex chaos signal, but this patent does not regulate the bias and polarity of the circuit

The patent [Authorization No. ZL201720479129.4] is based on the existing electro-optic modulator bias control device, and by introducing a new type of bias control module, the frequency shift of the probe light and the application of chaotic signals are realized, but the bias of the patent The control device is relatively complicated, and it cannot flexibly regulate the chaotic signal of the memristive feedback type

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