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A self-adjusting chaotic signal source

A technology for chaotic signals and output signals, which is applied in the direction of secure communication through chaotic signals, secure communication devices, digital transmission systems, etc., can solve the problems of limited application range of chaotic signals, unsolved problems of polarity control of chaotic signals, etc. Flexibility, the effect of reducing difficulty

Active Publication Date: 2020-04-17
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology

As in the above patent, a detailed solution is proposed for the amplitude regulation of chaotic signals, which solves the contradiction of the limited application range of chaotic signals to a certain extent, but the problem of polarity control of chaotic signals is still unsolved

Method used

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  • A self-adjusting chaotic signal source
  • A self-adjusting chaotic signal source
  • A self-adjusting chaotic signal source

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0033] A self-regulating chaotic signal source can be described by the following dynamical system equation,

[0034]

[0035] Among them, x, y and z are the components of the chaotic signal in the direction of x, y and z axis respectively, a is the parameter of the self-adjusting chaotic signal source, and are the derivatives of x, y, and z with respect to time, respectively.

[0036] Formally, the equation contains three quadratic nonlinear feedbacks and an internal linear feedback. When a=1, the chaotic attractor output by the system, such as figure 1 , 2 As shown in and 3, the corresponding Lyapunov exponent of the system at this time is (0.1271, 0, -0.5526).

[0037] Suppose x→mx,...

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Abstract

The invention discloses a self-adjustment chaotic signal source. Through adjustment of a rheostat of a second branch, the amplitude adjustment of a chaotic signal output by a system is realized. Through adjustment of a direct current power supply of a third branch, the polarity control of the chaotic signal is realized. Two independent control inlets are arranged, so the supply flexibility of a hardware circuit signal is increased, the circuit realization and debugging difficulty is reduced, and the convenience for applying the chaotic signal to electronics and information engineering is provided.

Description

technical field [0001] The invention relates to a self-regulating chaotic signal source, in particular to a self-regulating chaotic signal source with adjustable amplitude and polarity at the same time, belonging to the technical fields of electronics, communication and information engineering. Background technique [0002] The broadband characteristics, initial value sensitivity and quasi-randomness of chaotic signals make it widely used in secure communication, nerve electrical stimulation, weak signal detection and other fields. However, the actual application system has certain requirements on the amplitude and polarity of the chaotic signal. Usually, the signal needs to be amplified or polarity converted before signal processing. The broadband characteristics of chaotic signals make signal conditioning very difficult, and it is difficult to design amplifier circuits and polarity control circuits that match chaotic signals. Therefore, it is of great significance to seek ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/00
CPCH04L9/001
Inventor 李春彪徐玉杰张裕成赵益波梅永
Owner NANJING UNIV OF INFORMATION SCI & TECH
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