CN206341220U - Terahertz digital communication system based on polarization coding - Google Patents
Terahertz digital communication system based on polarization coding Download PDFInfo
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- CN206341220U CN206341220U CN201621420116.1U CN201621420116U CN206341220U CN 206341220 U CN206341220 U CN 206341220U CN 201621420116 U CN201621420116 U CN 201621420116U CN 206341220 U CN206341220 U CN 206341220U
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Abstract
The utility model is related to a kind of Terahertz digital communication system based on Polarization Coding.The system controls two pulse THz sources respectively according to data signal waiting for transmission, two pulse THz sources generate pulse signal at the time of signal is 0 and 1 respectively, then by two signals are each via polarization unit formation linear polarization signal and polarization direction is orthogonal, two-route wire polarization signal is launched after synthesizing signal all the way by polarization beam apparatus, receiving terminal is reduced into two paths of signals after receiving signal by polarization beam apparatus, then demodulates by terahertz detector signal 0 respectively and signal 1 completes data transfer.The utility model, which has, does not account for bandwidth resources, and direct fast modulation realizes simple advantage, is a kind of brand-new supplement to existing Terahertz communication plan.The speed of communication determined by the speed of pulse THz source, and the pulse instantaneous energy of pulse THz source is high, and power can be made than larger, and antidamping ability is eager to excel than continuous wave.
Description
Technical field
The utility model communications field, more particularly to a kind of Terahertz digital communication system based on Polarization Coding.
Background technology
Demand growth to unassigned idle frequency spectrum resource, will inevitably make the work of wireless communication system frequently
Rate develops to Terahertz (THz) frequency range of higher frequency.The instantaneous transfer of big data will use higher carrier frequency, to meet
The demand of high transfer rate.Substantial amounts of research shows, application and current comparative maturity of the THz communication technology in the communications field
Microwave communication compared with fiber optic communication, have the advantages that a lot, such as transmission rate is high, good directionality, safe, scattered
Penetrate small, and penetrability is good etc..
At present, the encoding scheme of Terahertz communication mainly has (ASK, OOK) binary modulation mode and (MQAM, MPSK) many
First orthogonal modulation.Although binary modulation mode is realized simply, and power efficiency is higher, is needed when realizing high speed data transfer
Larger bandwidth, it is sensitive to device non-linearity characteristic, it is difficult to realize complicated algorithm to adapt to the channel circumstance in practical application；And
Although the high-order modulating such as MPSK and MQAM efficiency ratio binary modulation is high, realize complexity, it is necessary to consider：Coherent receiver
Middle THz local oscillator noises, A/D converter (ADC) sample rate, power amplifier are non-linear etc..
Utility model content
Based on this, it is necessary to for existing Terahertz communicate encoding scheme take bandwidth it is higher the problem of there is provided
A kind of new Terahertz digital communication system based on Polarization Coding.
A kind of Terahertz digital communication system based on Polarization Coding, including：Data signal generation unit, is treated for basis
The data signal that the data generation of transmission is made up of 0 and 1；First pulse THz source, for receiving the data signal, and
Data signal launches the first terahertz signal for 0 each moment；Second pulse THz source, for receiving the data signal,
And launch the second terahertz signal in data signal for 1 each moment；First polarization unit, for will be from the first pulse Terahertz
First terahertz signal of source outgoing is converted into after linear polarization signal outgoing to the first polarization beam apparatus；Second polarization unit, is used
In the second terahertz signal from the second pulse THz source outgoing is converted into after linear polarization signal into outgoing to described first inclined
Shake beam splitter；The linear polarization signal that first terahertz signal is changed into and the line that second terahertz signal is changed into are inclined
The shake polarization direction of signal forms orthogonal；First polarization beam apparatus, for two-route wire polarization signal to be synthesized into signal all the way
Outgoing is to transmitter unit afterwards；The transmitter unit, for signal to be launched；Receiving unit, for receiving transmitter unit hair
The signal penetrated；Second polarization beam apparatus, it is right respectively for the signals revivification that receives receiving unit into two-way terahertz signal
Answer the first terahertz signal and the second terahertz signal；First terahertz detector, is arranged on second polarization beam apparatus pair
Answer on the outgoing route of signal all the way of the first terahertz signal, when receiving terahertz signal, generation responds and is transferred to solution
Adjust unit；Second terahertz detector, is arranged on the signal all the way of the second terahertz signal of the second polarization beam apparatus correspondence
Outgoing route on, when receiving terahertz signal, generation responds and is transferred to the demodulating unit；The demodulating unit,
Signal 0 is demodulated during the response for receiving the first terahertz detector, is solved when receiving the response of the second terahertz detector
Recall signal 1.
In wherein one embodiment, first polarization beam apparatus is used for the progress all the way in two-route wire polarization signal
Reflection, another road are synthesized after being transmitted in signal all the way, the signal that second polarization beam apparatus is received to receiving unit
Mutually orthogonal composition is reflected and transmitted respectively, so as to be reduced into two-way terahertz signal.
In wherein one embodiment, first polarization beam apparatus is to enter the linear polarization signal of the first terahertz signal
Row reflects, is transmitted the linear polarization signal of the second terahertz signal, and second polarization beam apparatus is by the first Terahertz
The composition of signal is reflected, is transmitted the composition of the second terahertz signal, and first terahertz detector is second
The detector of the reflex circuit of polarization beam apparatus, second terahertz detector is the detection on the transmission road of the second polarization beam apparatus
Device.
In wherein one embodiment, the transmitter unit includes condenser lens.
In wherein one embodiment, the receiving unit includes condenser lens.
The above-mentioned Terahertz digital communication system based on Polarization Coding, with bandwidth resources are not accounted for, direct fast modulation is real
Now simple advantage, is a kind of brand-new supplement to existing Terahertz communication plan.The speed of communication is by pulse Terahertz
The speed in source determines that the pulse instantaneous energy of pulse THz source is high, and power can be made than larger, and antidamping ability is than continuous
Ripple is eager to excel.
Brief description of the drawings
Fig. 1 is the structural representation of the Terahertz digital communication system based on Polarization Coding in an embodiment；
Fig. 2 is the flow chart of the Terahertz digital communication method based on Polarization Coding in an embodiment.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Preferred embodiment of the present utility model is given in accompanying drawing.But, the utility model can come real in many different forms
It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to public affairs of the present utility model
Open content more thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all combination of one or more related Listed Items.
Fig. 1 is the structural representation of the Terahertz digital communication system based on Polarization Coding in an embodiment, including signal
Transmitting terminal 100 and signal receiving end 200, wherein signal transmitting terminal 100 include data signal generation unit 110, the first pulse too
Hertz source 122, the second pulse THz source 124, the first polarization unit 132, the second polarization unit 134, the first polarization beam apparatus
140 and transmitter unit 150.
When the above-mentioned Terahertz digital communication system based on Polarization Coding is communicated, first by data signal generation unit
110 generate the data signal being made up of 0 and 1 according to data waiting for transmission.First pulse THz source 122 and the second pulse terahertz
The pulse that hereby source 124 is produced is by the Digital Signals：First pulse THz source 122 is sent out in data signal for 0 each moment
The first terahertz signal is penetrated, outgoing is to the first polarization beam apparatus after the first polarization unit 132 is converted into linear polarization signal
140；Second pulse THz source 124 launches the second terahertz signal in data signal for 1 each moment, single by the second polarization
Member 134 is converted into after linear polarization signal same outgoing to the first polarization beam apparatus 140.Wherein the first terahertz signal is changed into
Linear polarization signal forms orthogonal (such as the first Terahertz with the polarization direction for the linear polarization signal that the second terahertz signal is changed into
The angle of signal is 90 degree, and the angle of the second terahertz signal is 0 degree).First polarization beam apparatus 140 is inclined by the orthogonal line of two-way
The signal that shakes synthesizes outgoing after terahertz signal all the way and, to transmitter unit 150, is emitted into terahertz signal by transmitter unit 150
Propagation path.
Signal receiving end 200 includes receiving unit 250, the second polarization beam apparatus 240, the first terahertz detector 232, the
Two terahertz detectors 234 and demodulating unit 220.
Terahertz signal is transmitted to second inclined through propagation path arriving signal receiving terminal 200 after being received by receiving unit 250
Shake beam splitter 240.Second polarization beam apparatus 240 is by signals revivification into two-way terahertz signal, and this two paths of signals corresponds to the respectively
One terahertz signal and the second terahertz signal.In the signal all the way of the second polarization beam apparatus 240 the first terahertz signal of correspondence
Outgoing route on be provided with the first terahertz detector 232, in second polarization beam apparatus 240 the second terahertz signal of correspondence
The second terahertz detector 234 is provided with the outgoing route of signal all the way, each of which is given birth to when receiving terahertz signal
Into responding and be transferred to demodulating unit 220.Demodulating unit 220 is demodulated when receiving the response of the first terahertz detector 232
Go out signal 0, signal 1 is demodulated when receiving the response of the second terahertz detector 234.In one embodiment, first too
Hertz detector 232 and second terahertz detector 234 is the detector using Schottky-barrier diode (SBD).
The above-mentioned Terahertz digital communication system based on Polarization Coding, with bandwidth resources are not accounted for, direct fast modulation is real
Now simple advantage, is a kind of brand-new supplement to existing Terahertz communication plan.With the arteries and veins of data signal directly modulation
Emission source of the THz source as communication is rushed, the speed of communication is determined by the speed of pulse THz source.Due to pulse Terahertz
The pulse instantaneous energy in source is high, and the transmission power of transmitter unit 150 can be made than larger, and antidamping ability will than continuous wave
By force.
In one embodiment, the first polarization unit 132 and the second polarization unit 134 are polarizer.
In one embodiment, transmitter unit 150 includes condenser lens 150, by the letter of the outgoing of the first polarization beam apparatus 140
Number carry out one collect after import again in communication space.Receiving unit 250 is again provided with condenser lens, passes through condenser lens pair
Signal is transmitted after being collected to the second polarization beam apparatus 240.
Referring to Fig. 1, the first polarization beam apparatus 140 be by being reflected all the way in two-route wire polarization signal, another road is entered
Row transmission after synthesize in signal all the way, the signal that the second polarization beam apparatus 240 is received to receiving unit 250 it is mutually orthogonal into
Divide and reflected and transmitted respectively, so as to be reduced into two-way terahertz signal.
In the embodiment shown in fig. 1, the first polarization beam apparatus 140 is by the linear polarization signal progress of the first terahertz signal
Reflection, the linear polarization signal of the second terahertz signal is transmitted；During second polarization beam apparatus 240 is the signal that will be received
The composition of first terahertz signal is reflected, is transmitted the composition of the second terahertz signal.First terahertz detector
232 are arranged at the reflex circuit of the second polarization beam apparatus 240, and the second terahertz detector 234 is to be arranged at the second polarization beam apparatus
240 transmission road.
Fig. 2 is the flow chart of the Terahertz digital communication method based on Polarization Coding in an embodiment, is comprised the following steps：
S110, the data signal being made up of 0 and 1 is generated according to data waiting for transmission.
If data waiting for transmission are inherently data signal, can directly it use.
S120, launches the first terahertz signal, data signal is launched for 1 each moment in data signal for 0 each moment
Second terahertz signal.
In the present embodiment, it is that two pulse THz sources are set, the two pulses is controlled according to the data signal respectively
THz source generation pulse signal, wherein the first pulse THz source generate signal at the time of be data signal be 0 it is each when
Carve, be each moment that data signal is 1 at the time of the second pulse THz source generation signal.
S130, outgoing is converted into after linear polarization signal to the first polarization beam apparatus by the first terahertz signal.
S140, outgoing is converted into after linear polarization signal to the first polarization beam apparatus by the second terahertz signal.
The linear polarization signal that the linear polarization signal and the second terahertz signal that first terahertz signal is changed into are changed into
Polarization direction forms orthogonal.In the present embodiment, it is to be set respectively on the signal outgoing route of first, second pulse THz source
Polarizer is put, first, second terahertz signal after respective polarizer respectively by importing the first polarization beam apparatus.
S150, the first polarization beam apparatus synthesizes two-route wire polarization signal the transmitting that signal is carried out after signal all the way.
Step S110~S150 is the step of signal transmitting terminal is performed.In one embodiment, make signal poly- by first
Launch after focus lens into the communication space of terahertz signal.
S160, receiving terminal receives the signal of transmitting, and by the second polarization beam apparatus by the signals revivification received into two
Road terahertz signal.
In one embodiment, it is that signal focus will be received to the second polarization beam apparatus by the second condenser lens.
S170, carries out signal detection, and generate when detecting terahertz signal by first, second terahertz detector
Response.
Pass through the on the outgoing route for the signal all the way for being arranged on the second polarization beam apparatus the first terahertz signal of correspondence
One terahertz detector carries out signal detection, and the generation response when detecting terahertz signal.By being arranged on the second polarization
The second terahertz detector on the outgoing route of the signal all the way of beam splitter the second terahertz signal of correspondence carries out signal detection,
And response is generated when detecting terahertz signal.
S180, signal 0 is demodulated when the first terahertz detector, which is generated, to be responded, whenever the life of the second terahertz detector
Into response when demodulate signal 1.
Step S160~S180 is the step of signal receiving end is performed.
In one embodiment, step S150 is by the progress all the way in two-route wire polarization signal by the first polarization beam apparatus
Reflection, another road synthesize signal all the way after being transmitted.Step S160 is by the signal received by the second polarization beam apparatus
Mutually orthogonal composition is reflected and transmitted respectively, so as to be reduced into two-way terahertz signal.
In one embodiment, step S150 is by the linear polarization signal of the first terahertz signal by the first polarization beam apparatus
Reflected, transmitted the linear polarization signal of the second terahertz signal.Step S160 is by by the second polarization beam apparatus
The composition of one terahertz signal is reflected, is transmitted the composition of the second terahertz signal.First terahertz detector is
The detector of the reflex circuit of second polarization beam apparatus, the second terahertz detector is the detection on the transmission road of the second polarization beam apparatus
Device.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (6)
1. a kind of Terahertz digital communication system based on Polarization Coding, it is characterised in that including：
Data signal generation unit, for generating the data signal being made up of 0 and 1 according to data waiting for transmission；
First pulse THz source, the first terahertz is launched for receiving the data signal, and in data signal for 0 each moment
Hereby signal；
Second pulse THz source, the second terahertz is launched for receiving the data signal, and in data signal for 1 each moment
Hereby signal；
First polarization unit, for linear polarization signal will to be converted into from the first terahertz signal of the first pulse THz source outgoing
Outgoing is to the first polarization beam apparatus afterwards；
Second polarization unit, for linear polarization signal will to be converted into from the second terahertz signal of the second pulse THz source outgoing
Outgoing is to first polarization beam apparatus afterwards；The linear polarization signal that first terahertz signal is changed into and second terahertz
Hereby the polarization direction for the linear polarization signal that signal is changed into forms orthogonal；
First polarization beam apparatus, for by the synthesis of two-route wire polarization signal all the way after signal outgoing to transmitter unit；
The transmitter unit, for signal to be launched；
Receiving unit, the signal for receiving transmitter unit transmitting；
Second polarization beam apparatus, for the signals revivification that receives receiving unit into two-way terahertz signal, corresponds to the respectively
One terahertz signal and the second terahertz signal；
First terahertz detector, the signal all the way for being arranged on second polarization beam apparatus the first terahertz signal of correspondence goes out
On rays line, when receiving terahertz signal, generation responds and is transferred to demodulating unit；
Second terahertz detector, the signal all the way for being arranged on second polarization beam apparatus the second terahertz signal of correspondence goes out
On rays line, when receiving terahertz signal, generation responds and is transferred to the demodulating unit；
The demodulating unit, signal 0 is demodulated when receiving the response of the first terahertz detector, is receiving the second terahertz
Signal 1 is hereby demodulated during the response of detector.
2. the Terahertz digital communication system according to claim 1 based on Polarization Coding, it is characterised in that described first
Polarization beam apparatus is used to synthesize signal all the way after being transmitted being reflected all the way in two-route wire polarization signal, another road,
Mutually orthogonal composition is reflected and transmitted respectively in the signal that second polarization beam apparatus is received to receiving unit, from
And it is reduced into two-way terahertz signal.
3. the Terahertz digital communication system according to claim 2 based on Polarization Coding, it is characterised in that described first
Polarization beam apparatus is reflected the linear polarization signal of the first terahertz signal, by the linear polarization signal of the second terahertz signal
Transmitted, second polarization beam apparatus is reflected the composition of the first terahertz signal, by the second terahertz signal
Composition transmitted, first terahertz detector for the second polarization beam apparatus reflex circuit detector, described second
Terahertz detector is the detector on the transmission road of the second polarization beam apparatus.
4. the Terahertz digital communication system according to claim 1 based on Polarization Coding, it is characterised in that the transmitting
Unit includes condenser lens.
5. the Terahertz digital communication system according to claim 1 based on Polarization Coding, it is characterised in that the reception
Unit includes condenser lens.
6. the Terahertz digital communication system according to claim 1 based on Polarization Coding, it is characterised in that described first
Polarization unit and the second polarization unit are polarizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201621420116.1U CN206341220U (en) | 2016-12-22 | 2016-12-22 | Terahertz digital communication system based on polarization coding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621420116.1U CN206341220U (en) | 2016-12-22 | 2016-12-22 | Terahertz digital communication system based on polarization coding |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106603156A (en) * | 2016-12-22 | 2017-04-26 | 深圳市太赫兹科技创新研究院 | Terahertz digital communication system and method based on polarization coding |
| CN108712214A (en) * | 2018-05-08 | 2018-10-26 | 浙江大学 | A kind of tunable mostly band terahertz pulse wireless communication emitter |
-
2016
- 2016-12-22 CN CN201621420116.1U patent/CN206341220U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106603156A (en) * | 2016-12-22 | 2017-04-26 | 深圳市太赫兹科技创新研究院 | Terahertz digital communication system and method based on polarization coding |
| CN106603156B (en) * | 2016-12-22 | 2018-01-16 | 深圳市太赫兹科技创新研究院 | Terahertz digital communication system and method based on polarization coding |
| WO2018113456A1 (en) * | 2016-12-22 | 2018-06-28 | 深圳市太赫兹科技创新研究院 | Terahertz digital communication system and method based on polarization coding |
| CN108712214A (en) * | 2018-05-08 | 2018-10-26 | 浙江大学 | A kind of tunable mostly band terahertz pulse wireless communication emitter |
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