CN109814460A - A kind of chaotic signal generation method, device, equipment and readable storage medium storing program for executing - Google Patents
A kind of chaotic signal generation method, device, equipment and readable storage medium storing program for executing Download PDFInfo
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- CN109814460A CN109814460A CN201910116843.0A CN201910116843A CN109814460A CN 109814460 A CN109814460 A CN 109814460A CN 201910116843 A CN201910116843 A CN 201910116843A CN 109814460 A CN109814460 A CN 109814460A
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Abstract
The invention discloses a kind of chaotic signal generation methods, are applied to FPGA platform, comprising: obtain the object chaotic signal of fixed point format, object chaotic signal is based on mathematical software and is obtained using second order runge kutta method；The target chaotic signal of fixed point format is generated using second order runge kutta method；Judge whether target chaotic signal and the difference value of object chaotic signal are less than preset threshold value；If so, target chaotic signal is sent to host computer, target chaotic signal is emulated with the target simulator software that will pass through in host computer.This method can be improved the formation efficiency and accuracy of chaotic signal.Correspondingly, a kind of chaotic signal generating means, equipment and readable storage medium storing program for executing disclosed by the invention, similarly have above-mentioned technique effect.
Description
Technical field
The present invention relates to fields of communication technology, more specifically to a kind of chaotic signal generation method, device, equipment
And readable storage medium storing program for executing.
Background technique
Chaotic signal can be used as carrier wave, by transmission signal hiding among chaotic carrier, or pass through symbolic dynamics
Analysis assigns different wave different information sequence, is demodulated and is transmitted using the attribute or synchronizing characteristics of chaos in receiving end
Information.
In the prior art, it is generally basede on FPGA platform design hardware circuit, and is obtained by the way of hardware programming floating
The chaotic signal of dot format can consume more computer resource, and arithmetic speed is also slow, therefore the generation of chaotic signal
Efficiency is slower.Also, after generating chaotic signal based on FPGA platform, need technical staff normal according to working experience and theory
Know the superiority and inferiority for differentiating the chaotic signal generated, and in default of unified reference standard, differentiate that result is often not accurate enough, so
It then will affect the superiority and inferiority of chaotic signal, so that the accuracy of chaotic signal decreases.
Therefore, the formation efficiency and accuracy for how improving chaotic signal are that those skilled in the art need what is solved to ask
Topic.
Summary of the invention
The purpose of the present invention is to provide a kind of chaotic signal generation method, device, equipment and readable storage medium storing program for executing, to mention
The formation efficiency and accuracy of high chaotic signal.
To achieve the above object, the embodiment of the invention provides following technical solutions:
A kind of chaotic signal generation method is applied to FPGA platform, comprising:
The object chaotic signal of fixed point format is obtained, the object chaotic signal is based on mathematical software and uses second order dragon lattice
Ku Tafa is obtained；
The target chaotic signal of fixed point format is generated using the second order runge kutta method；
Judge whether the target chaotic signal and the difference value of the object chaotic signal are less than preset threshold value；
If so, the target chaotic signal is sent to host computer, will pass through the target simulator in the host computer
Software emulates the target chaotic signal.
Wherein, when the difference value is not less than the threshold value, further includes:
The difference value is visualized, so that user adjusts the target chaotic signal according to the difference value
Generation logic.
Wherein, the target chaotic signal that fixed point format is generated using the second order runge kutta method, comprising:
The different conditions of state machine are described using hardware program language, generate target chaos system；
The target chaos system is solved using the second order runge kutta method, generates the target chaotic signal.
Wherein, further includes:
The simulation result of the target chaotic signal is stored to file destination.
Wherein, when the difference value is less than the threshold value, further includes:
The target chaotic signal is converted into analog signal by D/A converter, so that the target chaotic signal can
It is shown in oscillograph.
A kind of chaotic signal generating means are applied to FPGA platform, comprising:
Module is obtained, for obtaining the object chaotic signal of fixed point format, the object chaotic signal is based on mathematical software
And it is obtained using second order runge kutta method；
Generation module, for generating the target chaotic signal of fixed point format using the second order runge kutta method；
Judgment module, for judging it is pre- whether the difference value of the target chaotic signal and the object chaotic signal is less than
If threshold value；
Sending module, for the target chaotic signal being sent to upper when the difference value is less than the threshold value
Machine is emulated with will pass through the target simulator software in the host computer to the target chaotic signal.
Wherein, further includes:
Display module, for when the difference value is not less than the threshold value, the difference value to be visualized,
So that user adjusts the generation logic of the target chaotic signal according to the difference value.
Wherein, the generation module includes:
First generation unit generates target chaos system for describing the different conditions of state machine using hardware program language
System；
Second generation unit, for solving the target chaos system using the second order runge kutta method, described in generation
Target chaotic signal.
A kind of chaotic signal generating device, comprising:
Memory, for storing computer program；
Processor realizes chaotic signal generation method described in above-mentioned any one when for executing the computer program
The step of.
A kind of readable storage medium storing program for executing is stored with computer program, the computer program quilt on the readable storage medium storing program for executing
The step of processor realizes chaotic signal generation method described in above-mentioned any one when executing.
By above scheme it is found that a kind of chaotic signal generation method provided in an embodiment of the present invention, flat applied to FPGA
Platform, comprising: obtain the object chaotic signal of fixed point format, the object chaotic signal is based on mathematical software and uses second order dragon lattice
Ku Tafa is obtained；The target chaotic signal of fixed point format is generated using the second order runge kutta method；Judge the target chaos
Whether the difference value of signal and the object chaotic signal is less than preset threshold value；If so, the target chaotic signal is sent out
It sending to host computer, being emulated with will pass through the target simulator software in the host computer to the target chaotic signal.
As it can be seen that the method is based on FPGA platform, and the target chaos of fixed point format is generated using second order runge kutta method
Then signal compares target chaotic signal and object chaotic signal, to determine the superiority and inferiority of target chaotic signal；Wherein,
Object chaotic signal is based on mathematical software and uses the acquisition of second order runge kutta method, i.e. object chaotic signal uses mixed with target
The identical algorithm of ignorant signal generates, inevitable identical with target chaotic signal, but since object chaotic signal is based on mathematical software
Programming realizes that accuracy can be higher than target chaotic signal.Institute is in this way using object chaotic signal as reference standard, energy
Enough determine the superiority and inferiority of target chaotic signal.
When the difference value of target chaotic signal and object chaotic signal is less than preset threshold value, show target chaotic signal
It is smaller with the difference of object chaotic signal, the two can consider to a certain extent accuracy be it is identical, later just by target
Chaotic signal is sent to host computer, is emulated with the target simulator software that will pass through in host computer to target chaotic signal, such as
This can save computer resource to avoid target simulator software of the inaccurate target chaotic signal of transmission into host computer.Its
In, the generation of the chaotic signal of fixed point format can reduce the consumption of hardware resource, improve the formation efficiency of chaotic signal.Therefore
The present invention can be improved the formation efficiency and accuracy of chaotic signal.
Correspondingly, a kind of chaotic signal generating means, equipment and readable storage medium storing program for executing provided in an embodiment of the present invention, also together
Sample has above-mentioned technique effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of chaotic signal generation method flow chart disclosed by the embodiments of the present invention；
Fig. 2 is chaos system schematic diagram disclosed by the embodiments of the present invention；
Fig. 3 is a kind of chaotic signal generating means schematic diagram disclosed by the embodiments of the present invention；
Fig. 4 is a kind of chaotic signal generating device schematic diagram disclosed by the embodiments of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of chaotic signal generation method, device, equipment and readable storage medium storing program for executing, to improve
The formation efficiency and accuracy of chaotic signal.
Referring to Fig. 1, a kind of chaotic signal generation method provided in an embodiment of the present invention is applied to FPGA platform, comprising:
S101, the object chaotic signal for obtaining fixed point format, object chaotic signal are based on mathematical software and using second order dragons
Ge Kutafa is obtained；
Wherein, data software such as MATLAB.
S102, the target chaotic signal that fixed point format is generated using second order runge kutta method；
Wherein, the target chaotic signal that fixed point format is generated using the second order runge kutta method, comprising: using hard
Part programming language describes the different conditions of state machine, generates target chaos system；Institute is solved using the second order runge kutta method
Target chaos system is stated, the target chaotic signal is generated.
Specifically, hardware program language is HDL.Second order runge kutta method is compared than Fourth order Runge-Kutta, has operation
Period is short, the high advantage of delivery efficiency, and the chaotic signal of fixed point format can reduce the consumption of hardware resource, therefore use two
The formation efficiency of chaotic signal can be improved in the target chaotic signal that rank runge kutta method generates fixed point format.
S103, judge whether target chaotic signal and the difference value of object chaotic signal are less than preset threshold value；If so,
Execute S104；If it is not, then executing S105；
S104, target chaotic signal is sent to host computer, will pass through the target simulator software in host computer to target
Chaotic signal is emulated；
S105, difference value is visualized, so that user adjusts the generation of target chaotic signal according to difference value
Logic.
Wherein, further includes: store the simulation result of the target chaotic signal to file destination.Wherein, file destination
It can be any editable, visual document, such as TXT document.
Wherein, when the difference value is less than the threshold value, further includes: by D/A converter by the target chaotic signal
Analog signal is converted to, so that the target chaotic signal can be shown in oscillograph.Certainly, when the difference value is not less than
When the threshold value, the target chaotic signal can also be converted to by analog signal by D/A converter, so that user is according to showing
The generation logic for the waveform adjustment target chaotic signal that wave device is shown.
As it can be seen that present embodiments providing a kind of chaotic signal generation method, the method is based on FPGA platform, and uses two
Rank runge kutta method generates the target chaotic signal of fixed point format, then carries out target chaotic signal and object chaotic signal pair
Than to determine the superiority and inferiority of target chaotic signal；Wherein, object chaotic signal is based on mathematical software and uses second order Runge Kutta
Method obtains, i.e., object chaotic signal is generated using algorithm identical with target chaotic signal, certainty and target chaotic signal phase
Together, but since object chaotic signal is based on mathematical software programming realize that accuracy can be higher than target chaotic signal.So should
Method can determine the superiority and inferiority of target chaotic signal using object chaotic signal as reference standard.
When the difference value of target chaotic signal and object chaotic signal is less than preset threshold value, show target chaotic signal
It is smaller with the difference of object chaotic signal, the two can consider to a certain extent accuracy be it is identical, later just by target
Chaotic signal is sent to host computer, is emulated with the target simulator software that will pass through in host computer to target chaotic signal, such as
This can save computer resource to avoid target simulator software of the inaccurate target chaotic signal of transmission into host computer.When
When the difference value of target chaotic signal and object chaotic signal is not less than preset threshold value, show that target chaotic signal and object are mixed
Ignorant signal differs greatly, and target chaos letter also needs to optimize, therefore can will visualize difference value, so that user
The generation logic of target chaotic signal is adjusted according to difference value.Wherein, the generation of the chaotic signal of fixed point format can reduce firmly
The consumption of part resource improves the formation efficiency of chaotic signal.Therefore the present invention can be improved the formation efficiency and standard of chaotic signal
True property.
The embodiment of the invention discloses a kind of realization steps for generating chaotic signal, relative to a upper embodiment, this implementation
Example has made further instruction and optimization to technical solution.
Steps are as follows for a kind of realization generating chaotic signal disclosed by the embodiments of the present invention:
1, it is based on programmable gate array (FPGA), and carries out programming using hardware program language (HDL).Its
In, FPGA realizes the circuit description of chaos system, and included hardware multiplier can increase substantially the arithmetic speed of circuit, and
Data processing is carried out using the fixed-point number that bit wide can customize, can be converted by scale compression and variable-value is limited in some
In range.
2, the discretization iterative process of continuous chaotic system is realized using second order runge kutta method.Wherein, use state machine
The each state for describing chaos system, multiple circuit modules are run in each state, decompose multiple calculating steps.
3, the chaotic signal compiled using Quartus II, and it is emulated by Modelsim, it will emulate
As a result it stores to .txt document 1.
4, program is write using m language in MATLAB, wherein can customize using second order runge kutta method and bit wide
Fixed-point number carries out data processing, obtains another chaotic signal, emulates to the chaotic signal, simulation result is stored to .txt
Document 2；
5, the simulation result in .txt document 1 and .txt document 2 is compared, if the difference of the two meets preset item
Part, then using the chaotic signal obtained based on FPGA as final available chaotic signal；Otherwise, the difference of the two is shown, so as to
The generation logic for the chaotic signal that technical staff describes according to discrepancy adjustment hardware program language.
It is raw based on the chaotic signal for meeting preset condition when the chaotic signal obtained based on FPGA meets preset condition
At various chaos systems refer to Fig. 2, include: Lorenz system and multi-scroll chaotic system in Fig. 2.So as it can be seen that utilizing
The chaotic signal that method provided by the invention generates stands inspection.
A kind of chaotic signal generating means provided in an embodiment of the present invention are introduced below, it is described below a kind of mixed
Ignorant signal generating apparatus can be cross-referenced with a kind of above-described chaotic signal generation method.
Referring to Fig. 3, a kind of chaotic signal generating means provided in an embodiment of the present invention are applied to FPGA platform, comprising:
Module 301 is obtained, for obtaining the object chaotic signal of fixed point format, it is soft that the object chaotic signal is based on mathematics
Part is simultaneously obtained using second order runge kutta method；
Generation module 302, for generating the target chaotic signal of fixed point format using the second order runge kutta method；
Whether judgment module 303, the difference value for judging the target chaotic signal and the object chaotic signal are small
In preset threshold value；
Sending module 304, for when the difference value is less than the threshold value, the target chaotic signal to be sent to
Position machine, is emulated with will pass through the target simulator software in the host computer to the target chaotic signal.
Wherein, further includes:
Display module, for when the difference value is not less than the threshold value, the difference value to be visualized,
So that user adjusts the generation logic of the target chaotic signal according to the difference value.
Wherein, the generation module includes:
First generation unit generates target chaos system for describing the different conditions of state machine using hardware program language
System；
Second generation unit, for solving the target chaos system using the second order runge kutta method, described in generation
Target chaotic signal.
Wherein, further includes:
Memory module, for storing the simulation result of the target chaotic signal to file destination.
Wherein, further includes:
Conversion module, for the target chaotic signal to be converted to analog signal by D/A converter, so as to the mesh
Mark chaotic signal can be shown in oscillograph.
As it can be seen that present embodiments providing a kind of chaotic signal generating means, comprising: obtain module, generation module, judge mould
Block and sending module.It is used to obtain the object chaotic signal of fixed point format, the object chaotic signal by acquisition module first
It is obtained based on mathematical software and using second order runge kutta method；Then generation module is generated fixed using the second order runge kutta method
The target chaotic signal of dot format；And then judgment module judges the difference of the target chaotic signal Yu the object chaotic signal
Whether value is less than preset threshold value；Last sending module believes the target chaos when the difference value is less than the threshold value
Number it being sent to host computer, being emulated with will pass through the target simulator software in the host computer to the target chaotic signal.
Share out the work and help one another between such modules, Each performs its own functions, to improve the formation efficiency and accuracy of chaotic signal.
A kind of chaotic signal generating device provided in an embodiment of the present invention is introduced below, it is described below a kind of mixed
Ignorant signal generating device can be cross-referenced with a kind of above-described chaotic signal generation method and device.
Referring to fig. 4, a kind of chaotic signal generating device provided in an embodiment of the present invention, comprising:
Memory 401, for storing computer program；
Processor 402 realizes that chaotic signal described in above-mentioned any embodiment is raw when for executing the computer program
The step of at method.
A kind of readable storage medium storing program for executing provided in an embodiment of the present invention is introduced below, one kind described below is readable to deposit
Storage media can be cross-referenced with a kind of above-described chaotic signal generation method, device and equipment.
A kind of readable storage medium storing program for executing is stored with computer program, the computer program quilt on the readable storage medium storing program for executing
The step of chaotic signal generation method as described in above-mentioned any embodiment is realized when processor executes.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of chaotic signal generation method, which is characterized in that be applied to FPGA platform, comprising:
The object chaotic signal of fixed point format is obtained, the object chaotic signal is based on mathematical software and uses second order Runge Kutta
Method obtains；
The target chaotic signal of fixed point format is generated using the second order runge kutta method；
Judge whether the target chaotic signal and the difference value of the object chaotic signal are less than preset threshold value；
If so, the target chaotic signal is sent to host computer, will pass through the target simulator software in the host computer
The target chaotic signal is emulated.
2. chaotic signal generation method according to claim 1, which is characterized in that when the difference value is not less than the threshold
When value, further includes:
The difference value is visualized, so that user adjusts the life of the target chaotic signal according to the difference value
At logic.
3. chaotic signal generation method according to claim 2, which is characterized in that described to use the second order Runge Kutta
The target chaotic signal of method generation fixed point format, comprising:
The different conditions of state machine are described using hardware program language, generate target chaos system；
The target chaos system is solved using the second order runge kutta method, generates the target chaotic signal.
4. chaotic signal generation method according to claim 1 to 3, which is characterized in that further include:
The simulation result of the target chaotic signal is stored to file destination.
5. chaotic signal generation method according to claim 1, which is characterized in that when the difference value is less than the threshold value
When, further includes:
The target chaotic signal is converted into analog signal by D/A converter, so that the target chaotic signal can show
It is shown in wave device.
6. a kind of chaotic signal generating means, which is characterized in that be applied to FPGA platform, comprising:
Module is obtained, for obtaining the object chaotic signal of fixed point format, the object chaotic signal is based on mathematical software and adopts
It is obtained with second order runge kutta method；
Generation module, for generating the target chaotic signal of fixed point format using the second order runge kutta method；
Judgment module, for judging it is preset whether the difference value of the target chaotic signal and the object chaotic signal is less than
Threshold value；
Sending module, for when the difference value is less than the threshold value, the target chaotic signal to be sent to host computer, with
The target simulator software that will pass through in the host computer emulates the target chaotic signal.
7. chaotic signal generating means according to claim 6, which is characterized in that further include:
Display module, for when the difference value is not less than the threshold value, the difference value to be visualized, so that
User adjusts the generation logic of the target chaotic signal according to the difference value.
8. chaotic signal generating means according to claim 7, which is characterized in that the generation module includes:
First generation unit generates target chaos system for describing the different conditions of state machine using hardware program language；
Second generation unit generates the target for solving the target chaos system using the second order runge kutta method
Chaotic signal.
9. a kind of chaotic signal generating device characterized by comprising
Memory, for storing computer program；
Processor realizes that the chaotic signal as described in claim 1-5 any one is raw when for executing the computer program
The step of at method.
10. a kind of readable storage medium storing program for executing, which is characterized in that be stored with computer program, the meter on the readable storage medium storing program for executing
The step of chaotic signal generation method as described in claim 1-5 any one is realized when calculation machine program is executed by processor.
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