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Chaotic signal generator

A chaotic signal and generator technology, which can be used in safety communication devices, digital transmission systems, electrical components, etc., can solve problems such as large hardware resources, and achieve the effect of strong operability and achievability

Inactive Publication Date: 2010-07-28
南通晓星变压器有限公司 +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Since FPGA implementation consumes a lot of hardware resources, in order to ensure the accuracy of the algorithm, only some relatively simple chaotic signals can be satisfied.

Method used

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Examples

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Embodiment Construction

[0024] See Figure 1-11 , the chaotic signal generator of this embodiment, taking the design of a four-dimensional grid scroll hyperchaotic signal generator as an example, the schematic diagram based on microcontroller (MCU) hardware implementation is as follows figure 1 As shown, it mainly includes: microcontroller unit, magnetic coupling isolation circuit, D / A conversion circuit, etc.; four-channel modular design, through the JTAG interface to program the MCU on-chip Flash, to realize x, y, z, w four-dimensional Voltage signal output. The core chip MCU adopts the AVR micro-control device ATmega128L. Under the function of the internal timer module, the software controls the PB0~PB2, PD0~PD2, PE0~PE2, PF0~PF2 interfaces, outputs SPI timing signals, and communicates with four D / A The conversion circuit establishes the data link. PB0, PD0, PE0, and PF0 output control signals, PB1, PD1, PE1, and PF1 output clock signals, and PB2, PD2, PE2, and PF2 serially output digital signal...

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Abstract

The invention relates to a chaotic signal generator which comprises a micro control unit, a magnetic coupling isolating circuit and a D / A converting circuit, wherein the micro control unit comprises a plurality of groups of signal output interfaces, and one group of the signal output interfaces is used for outputting a one-dimensional digital voltage signal; the signal output interfaces are sequentially connected with the magnetic coupling isolating circuit and the D / A converting circuit; a plurality of voltage signal output of the D / A converting circuit form a multi-dimensional analog voltage signal output; and the multi-dimensional analog voltage signal is a chaotic signal. The chaotic signal generator can output phase rail maps of chaotic or hyperchaotic attractors based on different chaotic systems with different types of single scroll, double scroll, multiple scroll, multiple wing, grid scroll, and the like and time domain waveforms of the signals corresponding to different state variables.

Description

technical field [0001] The invention relates to a chaotic signal generator. Background technique [0002] Due to the randomness of the chaotic signal, the characteristics of continuous broadband power spectrum, easy to generate, difficult to predict and separate through common time domain and frequency domain processing, and the inherent sensitive dependence of the chaotic system on the initial conditions, the chaotic signal It is especially suitable for the fields of secure communication (especially military communication) and information encryption, so realizing chaotic oscillation circuits with different chaotic characteristics has long been a hot spot for researchers. [0003] From the perspective of research on the circuit realization of chaotic signal generators, it is mainly divided into two categories, one is to use discrete components such as operational amplifiers, resistors and capacitors to form independent functional modules connected to form circuit simulation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/00
Inventor 包伯成徐强徐煜明朱雷
Owner 南通晓星变压器有限公司
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