CN103354494B - A kind of communication system based on superlattices Chaotic Synchronous - Google Patents
A kind of communication system based on superlattices Chaotic Synchronous Download PDFInfo
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- CN103354494B CN103354494B CN201310282159.2A CN201310282159A CN103354494B CN 103354494 B CN103354494 B CN 103354494B CN 201310282159 A CN201310282159 A CN 201310282159A CN 103354494 B CN103354494 B CN 103354494B
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Abstract
The present invention relates to a kind of communication system based on superlattices Chaotic Synchronous, receive device including raw information generating means, the first chaotic signal generating device, modulating device, demodulating equipment, the second chaotic signal generating device and raw information.First chaotic signal generating device, the second chaotic signal generating device are chaotic signal generating circuit based on superlattice device, and circuit parameter intercouples；First chaotic signal generating device produces the first chaotic signal, and raw information is modulated by modulating device according to the first chaotic signal；Second chaotic signal generating device produces the second chaotic signal, the second chaotic signal and the first chaotic signal synchronization, and demodulating equipment obtains demodulated signal to modulation intelligence demodulation.The chaotic signal generating device circuit parameter coupling of transmitting terminal of the present invention and receiving terminal, can produce the random number code stream of synchronization, it is achieved transmitting terminal and the automatic synchronization of receiving terminal；Even if the parameter that third party knows transmitting terminal and receiving terminal can not decode out raw information.
Description
[technical field]
The present invention relates to synchronize and secure communication field, particularly relate to a kind of based on superlattices Chaotic Synchronous logical
News system.
[background technology]
Traditional secure communication mode is that communication two side utilizes only themselves burst of data held to original
Information is encrypted, and is decrypted raw information by recipient by this string data.In above process, only
Third party to be had intercepts and captures transmission information, and also holds this and serially add code and just can intercept the former of transmission easily
Beginning information.This is clearly extremely unsafe and it is neither possible to realize public secure communication.
In 1976, Diffie and Hellman proposed a kind of safe IKE based on number theory,
Making information realize the secure communication of information at common channel, this is found to be contemporary cryptology and lays a good foundation.
In recent years, be used for security key exchange agreement based on quantum-mechanical physical arrangement, it can not be substituted it
Place is that it can be detected and whether has third party to eavesdrop and try to safe key, and this is easy to information communication
Gained total key in two ends eliminates after information is eavesdropped by third party, but, these operations reduce with
The generation efficiency of machine number, thus reduce information transfer efficiency.
Chaotic Synchronous is widely used in secure communication field.On the one hand, chaos system itself be difficult to pre-
Survey, and two chaos system original states are completely the same, the most also have the most orthogonal operation rail
Mark；On the other hand, the chaos system of two inner parameter couplings can be mutually synchronized to same chaos state.
In synchronizing process, primary signal is through the chaotic signal encrypting and transmitting of transmitting terminal, and receiving terminal receives modulation letter
Ceasing and decipher, other listener-ins can not decrypt information simultaneously, and this COMMUNICATIONS WITH CHAOS method can be by electricity
Road and chaotic laser light signal source realize.But circuit uses thermal noise as chaos signal source, and speed is the lowest；
Use chaotic laser light then floor space big, be not easy to realize.Therefore, research a kind of all-electronin, high-transmission code
The chaotic synchronizing system of rate is imperative.
[summary of the invention]
Present invention seek to address that above-mentioned problems of the prior art, propose a kind of same based on superlattices chaos
The communication system of step.
The communication system based on superlattices Chaotic Synchronous that the present invention proposes includes: raw information generating means,
First chaotic signal generating device, modulating device, demodulating equipment, the second chaotic signal generating device and former
Beginning information receiver.Wherein, described first chaotic signal generating device and the second chaotic signal fill
Put and be chaotic signal generating circuit based on superlattice device, described first chaotic signal generating device and
The circuit parameter of two chaotic signal generating devices intercouples；Described first chaotic signal generating device produces the
One chaotic signal, described raw information generating means produces raw information, and described modulating device is according to described the
Described raw information is modulated by one chaotic signal, obtains modulation intelligence；Described second chaotic signal occurs
Device produces the second chaotic signal, described second chaotic signal and described first chaotic signal synchronization, described solution
Adjust device according to described second chaotic signal, described modulation intelligence to be demodulated, obtain demodulated signal；Described
Raw information receives device and receives described demodulated signal.
The present invention can produce the random number code stream of Gbit/s magnitude, uses the modulation of this random number code stream described former
Modulation intelligence code check that beginning information obtains is high, the containing much information of transmitted per unit time.Meanwhile, transmitting terminal and
The chaotic signal generating device circuit parameter coupling of receiving terminal, it is achieved transmitting terminal and the automatic synchronization of receiving terminal；
On the other hand, third party i.e. allow to intercept and capture transmission signal can not decode out raw information.
[accompanying drawing explanation]
Fig. 1 is the communication system architectures figure based on superlattices Chaotic Synchronous of one embodiment of the invention.
Fig. 2 is the chaotic signal generating device structure chart of one embodiment of the invention.
Fig. 3 is the random sequence generation function structure chart of one embodiment of the invention.
Fig. 4 is the superlattice device structure chart of one embodiment of the invention.
[detailed description of the invention]
In order to make the purpose of the present invention, technical scheme and advantage become apparent from, below in conjunction with specific embodiment and
Accompanying drawing, is described in further detail the present invention.Only should be appreciated that the specific embodiment described in literary composition
In order to explain technical scheme, and it is not construed as limitation of the present invention.
The present invention provides a kind of communication system based on superlattices Chaotic Synchronous.
As it is shown in figure 1, in an embodiment of the present invention, described communication system based on superlattices Chaotic Synchronous
Including: raw information generating means the 100, first chaotic signal generating device 200, modulating device 300, solution
Device the 400, second chaotic signal generating device 500 and raw information is adjusted to receive device 600.
The described each ingredient operation principle of communication system based on superlattices Chaotic Synchronous will be made into one below
Step describes in detail.
Described first chaotic signal generating device 200 and the second chaotic signal generating device 500 be based on
The chaotic signal generating circuit of superlattice device, and described first chaotic signal generating device 200 and second is mixed
The circuit parameter of ignorant signal generation apparatus 500 intercouples.Preferably, as in figure 2 it is shown, described first mixes
Ignorant signal generation apparatus 200 and the second chaotic signal generating device 500 include power module 1000, biasing
Network 2000, superlattice device 3000 and random sequence generation module 5000.Described power module 1000
Include but not limited to bias DC voltage source, for providing bias voltage for chaotic signal generating circuit；Described
Biasing networks 2000 one end connects described power module 1000, and the other end connects described superlattice device 3000,
The high frequency analog signals that described biasing networks 2000 prevents described superlattice device 3000 from producing feeds back to described
Power module 1000, plays the protective effect to described power module 1000；Described superlattice device 3000
For producing high frequency analog signals, described high frequency analog signals by after described biasing networks 2000, described with
Machine sequence generation module 5000 converts thereof into random sequence, and described random sequence is described chaotic signal and sends out
The output signal of raw circuit.Preferably, described first chaotic signal generating device 200 and the second chaos letter
Number generating means 500 also includes that high frequency load impedance, described superlattice device 3000 are loaded by described high frequency
Impedance earth；It is further preferred that the resistance value of described high frequency load impedance is 50 ohm.
Due to described first chaotic signal generating device 200 and the electricity of the second chaotic signal generating device 500
LUSHEN number intercouples, and the communication system based on chaos principle that therefore present invention proposes has robustness, rings
Answer system synchronization, namely described first chaotic signal generating device 200 and the second chaotic signal generating device
500 can produce the stochastic signal synchronized, the described random letter that described first chaotic signal generating device 200 produces
Number for the modulation of primary signal, the described stochastic signal that described second chaotic signal generating device 500 produces
Demodulation for modulation intelligence.
As shown in Figure 3, it is preferable that described random sequence generation module 5000 include AD conversion unit 5001,
Buffer unit 5002, difference unit 5003 and bit acquiring unit 5004.Wherein, described analog digital conversion
The described high frequency analog signals that described superlattice device 3000 is produced by unit 5001 carries out analog digital conversion,
To digital signal, described digital signal is cached by described buffer unit 5002, described difference unit 5003
The digital signal of the digital signal being currently received and caching is carried out difference operation, obtains differential signal,
Final described bit acquiring unit 5004 obtains the least significant bit of described differential signal, thus obtain described with
Machine sequence.
Refer to Fig. 1, as described above, described first chaotic signal generating device 200 mixes for producing first
Ignorant signal, described first chaotic signal random sequence the most mentioned above, described first chaotic signal is modulation letter
Number；Described raw information generating means 100 produces raw information, and described raw information is and passes from transmitting terminal
Deliver to the information of receiving terminal；Described modulating device 300 according to described first chaotic signal to described raw information
It is modulated, obtains modulation intelligence.
Described second chaotic signal generating device produces the second chaotic signal, and described second chaotic signal is the most above
Described random sequence, described second chaotic signal is demodulated signal.Owing to described first chaotic signal fills
Put 200 and second the circuit parameter of chaotic signal generating device 500 intercouple, the most described first mixes
Ignorant signal generation apparatus 200 and the second chaotic signal generating device 500 can produce described the first of synchronization
Chaotic signal and the second chaotic signal, described demodulating equipment 400 according to described second chaotic signal to described
Modulation intelligence is demodulated, and obtains demodulated signal, is finally received device 600 by described raw information and receives institute
State demodulated signal.
Preferably, the operation principle of described modulating device 300 is as interference using raw information, joins
Being modulated in one chaotic signal, the operation principle of described demodulating equipment 400 is for utilizing and the first chaotic signal
The second chaotic signal synchronized demodulates raw information.
As shown in Figure 4, it is preferable that described superlattice device 3000 include semi insulating semiconductor substrate 3001,
First semiconductor contact layer 3002, semiconductor superlattice structure sheaf the 3003, second semiconductor contact layer 3004,
Deposit passivation layer 3005, the first metal layer 3006a and the second metal level 3006b.Described superlattice device
3000 can be made by semiconductor microactuator processing technique, specifically, utilize molecular beam epitaxy (Molecular
Beam Epitaxy, MBE) technique, metal organic chemical vapor deposition (Metal Organic Chemical Vapor
Deposition, MOCVD) technique homepitaxy growing technology and doping techniques make described superlattice device
3000。
In the present invention, the described high frequency analog signals bandwidth that described superlattice device 3000 produces can reach
More than GHz, the most described first chaotic signal generating device 200 and described second chaotic signal fill
Put the 500 random number code streams that can produce Gbit/s magnitude, use this random number code stream to modulate described original letter
The modulation intelligence code check that obtains of breath is high, the containing much information of transmitted per unit time.
Described first chaotic signal generating device in the present invention and the second chaotic signal generating device circuit parameter
Coupling, therefore can produce the random number code stream of synchronization, it is achieved transmitting terminal and the automatic synchronization of receiving terminal, gram
Take the shortcoming that in conventional art, communication transmitting terminal and receiving terminal need to transmit key in advance；On the other hand, even if
Third party knows the parameter of communication transmitting terminal and receiving terminal, and it can only be transmitted signal and be driven, and can not shadow
Ring and calculate transmission signal dynamic trajectory, therefore third party i.e. allow to intercept and capture transmission signal can not break
Translate raw information.
Although the present invention is described with reference to current better embodiment, but those skilled in the art should
Being understood that, above-mentioned better embodiment is only used for explaining and illustrate technical scheme, and is not used for
Limiting protection scope of the present invention, any within the scope of the spirit and principles in the present invention, that is done any repaiies
Decorations, equivalence are replaced, are deformed, improvement etc., within should be included in the claims of the present invention.
Claims (4)
1. a communication system based on superlattices Chaotic Synchronous, including: raw information generating means, first
Chaotic signal generating device, modulating device, demodulating equipment, the second chaotic signal generating device and original letter
Breath reception device, wherein,
Described first chaotic signal generating device and the second chaotic signal generating device are based on superlattices device
The chaotic signal generating circuit of part, described first chaotic signal generating device and the second chaotic signal generating device
Circuit parameter intercouple；
Described first chaotic signal generating device and the second chaotic signal generating device all include: superlattices device
Part and random sequence generation module, wherein,
Described superlattice device produces high frequency analog signals, and described random sequence generation module is by described high frequency mould
Intending signal and be converted into random sequence, described random sequence is described first chaotic signal, the second chaotic signal；
Described random sequence generation module includes AD conversion unit, buffer unit, difference unit and bit
Acquiring unit, wherein, described AD conversion unit carries out analog digital conversion to described high frequency analog signals, obtains
Digital signal, described buffer unit caches described digital signal, and described difference unit is to the described number after caching
Word signal and presently described digital signal carry out difference operation, obtain differential signal, and described bit obtains single
Unit takes least significant bit and obtains described random sequence described differential signal；
Described first chaotic signal generating device produces the first chaotic signal, and described raw information generating means produces
Raw raw information, described raw information is modulated by described modulating device according to described first chaotic signal,
Obtain modulation intelligence；
Described second chaotic signal generating device produces the second chaotic signal, and described second chaotic signal is with described
First chaotic signal synchronization, described modulation intelligence is carried out by described demodulating equipment according to described second chaotic signal
Demodulation, obtains demodulated signal；
Described raw information receives device and receives described demodulated signal.
Communication system based on superlattices Chaotic Synchronous the most according to claim 1, it is characterised in that
Described first chaotic signal generating device and the second chaotic signal generating device the most also include power module, partially
Putting network, wherein, described power module provides voltage for described superlattice device；
Described biasing networks prevents described high frequency analog signals from feeding back to described power module.
Communication system based on superlattices Chaotic Synchronous the most according to claim 1, it is characterised in that
Described random sequence generation module produces the random sequence of Gbit/s magnitude.
Communication system based on superlattices Chaotic Synchronous the most according to claim 1, it is characterised in that
Described superlattice device includes that semi insulating semiconductor substrate, the first semiconductor contact layer, semiconductor superlattice are tied
Structure layer, the second semiconductor contact layer, deposit passivation layer, the first metal layer and the second metal level.
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| CN105007159A (en) * | 2015-07-24 | 2015-10-28 | 苏州矗联电子技术有限公司 | Secret key distribution device based on chaotic synchronization |
| CN110261861B (en) * | 2018-03-12 | 2023-12-15 | 中国科学院苏州纳米技术与纳米仿生研究所 | Laser chaos distance measuring device and distance measuring method based on superlattice device |
| CN110519036A (en) * | 2018-05-22 | 2019-11-29 | 中国科学院苏州纳米技术与纳米仿生研究所 | The application method of data encryption and transmission method, terminal device and superlattices chaos device |
| CN110519210A (en) * | 2018-05-22 | 2019-11-29 | 中国科学院苏州纳米技术与纳米仿生研究所 | Cryptographic key distribution method and terminal device |
| CN109302343A (en) * | 2018-12-06 | 2019-02-01 | 安徽云探索网络科技有限公司 | A kind of enterprise security instant communicating system |
| CN109782148B (en) * | 2019-01-23 | 2021-03-23 | 中国科学院苏州纳米技术与纳米仿生研究所 | Signal processing device and signal processing method based on semiconductor superlattice device |
| CN111212072B (en) * | 2019-12-31 | 2021-05-14 | 北京明朝万达科技股份有限公司 | Vehicle safety control method and system based on superlattice encryption and decryption chip |
| CN111246251A (en) * | 2020-01-21 | 2020-06-05 | 中国科学院苏州纳米技术与纳米仿生研究所 | Encryption transmission method, terminal, system and application of video stream data |
| CN112181361A (en) * | 2020-09-28 | 2021-01-05 | 苏州矗联电子技术有限公司 | High-speed physical random number generating device and method |
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