Multi-scroll chaotic circuit based on triangular wave control

A technology of chaotic circuits and triangular waves, which is applied in secure communication, electrical components, and digital transmission systems through chaotic signals, and can solve problems such as poor anti-deciphering ability, low security, and complex hardware composition of the system

Active Publication Date: 2020-07-24
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to its low system dimension, the low-dimensional chaotic system has problems such as insufficient key space, low complexity of chaotic sequence, poor anti-deciphering ability of the system, and low security.
[0003] The

Method used

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  • Multi-scroll chaotic circuit based on triangular wave control
  • Multi-scroll chaotic circuit based on triangular wave control
  • Multi-scroll chaotic circuit based on triangular wave control

Examples

Experimental program
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Embodiment 1

[0047] Embodiment 1, reference figure 1 with figure 2 , a multi-scroll chaotic circuit based on triangular wave control, comprising: a basic chaotic signal generating circuit N1 and a function signal generating circuit N2, the basic chaotic signal generating circuit N1 is provided with: an x ​​signal output terminal, a y signal output terminal, z signal output terminal and f(x) signal input terminal; the input terminal of the function signal generation circuit N2 is connected with the x signal output terminal, and the output terminal of the function signal generation circuit N2 is connected with the f(x) signal input terminal.

[0048] The function signal generating circuit N2 includes: an operational amplifier OP 10 to OP 20 , resistance R 20 to R 68 ;

[0049] Operational amplifier OP 20 The output terminals are respectively connected with the resistor R 68 The left end of the f(x) signal input terminal is connected, and the operational amplifier OP 20 The negative ...

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Abstract

The invention discloses a multi-scroll chaotic circuit based on triangular wave control. The circuit comprises a basic chaotic signal generation circuit N1 and a function signal generation circuit N2,and is characterized in that the basic chaotic signal generation circuit N1 is provided with an x signal output end, a y signal output end, a z signal output end and an f (x) signal input end; the input end of the function signal generation circuit N2 is connected with the x signal output end, and the output end of the function signal generation circuit N2 is connected with the f (x) signal inputend. Through the function signal generation circuit N2 for generating triangular waves and the basic chaotic signal generation circuit N1, hardware is simpler and easier to implement, multiple grid multi-scroll signals are generated, the encryption strength is high, and the decoding resistance is high. The method is mainly used for communication encryption.

Description

technical field [0001] The invention relates to the technical field of chaotic communication, in particular to a multi-scroll chaotic circuit based on triangular wave control. Background technique [0002] Since Lorenz discovered the first chaotic system in the 1960s, the chaotic system has been widely used in image encryption, information security and other fields because of its strong sensitivity and dependence on initial conditions and parameters, and unpredictability. s concern. As a deterministic random-like process in nonlinear dynamical systems, chaos has ergodic, mixed and exponential divergence. Due to its low system dimension, the low-dimensional chaotic system has problems such as insufficient key space, low complexity of chaotic sequences, poor anti-deciphering ability of the system, and low security. [0003] The existing multi-scroll chaotic signal generator has complex hardware structure, and the encryption strength is not high, the key space is insufficient...

Claims

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Application Information

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IPC IPC(8): H04L9/00
CPCH04L9/001
Inventor 刘扬张朝霞林壮
Owner FOSHAN UNIVERSITY
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