CN108650027A - Centrifuge the space optical communication receiver and system of focusing extensive angle anti-vibration - Google Patents
Centrifuge the space optical communication receiver and system of focusing extensive angle anti-vibration Download PDFInfo
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- CN108650027A CN108650027A CN201810365313.5A CN201810365313A CN108650027A CN 108650027 A CN108650027 A CN 108650027A CN 201810365313 A CN201810365313 A CN 201810365313A CN 108650027 A CN108650027 A CN 108650027A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/691—Arrangements for optimizing the photodetector in the receiver
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Communication System (AREA)
Abstract
The present invention provides a kind of focusing extensive angle anti-vibration space optical communication receivers of centrifugation, including：The optical signal for receiving the optical signal for carrying data-signal, and is converged to the focal surface of each concentration module, N ＞ 1 by N number of concentration module；N number of detector, an apex angle of each detector are located at the focal point of each concentration module, the optical signal for detecting the concentration module convergence；And processing module, the detectable signal for being detected to each detector are handled, and determine the location information for emitting the light source.In addition, the present invention also provides a kind of focusing extensive angle anti-vibration space optical communication systems of centrifugation.The detector and concentration module of the receiver of the present invention correspond, form spotlight detection module, form unsymmetric structure, and an apex angle of each detector is located at the focal point of each concentration module, the optical signal of different incident directions can be separately detected, can realize that the wide-angle of receiver receives and stablize antivibration.
Description
Technical field
The present invention relates to optical communication fields more particularly to a kind of space optical communication of the focusing extensive angle anti-vibration of centrifugation to connect
Receipts machine and system.
Background technology
Free space optical communication technology has been constantly subjected to the height weight of optical communication field researcher since being suggested
Depending on.Space Optical Communication Technologies have many advantages, such as bandwidth height, good confidentiality, are not necessarily to wave band application, and it is logical to be believed to substitution microwave
Letter, becomes the main means of next generation communication system.However due to the collimation transmission feature of laser, Conventional spatial optical communication system
It is required that transmitting terminal and the mutual height alignment of receiving terminal, according to the difference of Communication System Design, alignment precision usually requires that
0.1mrad-10mrad etc. are devised to realize above-mentioned required precision and various complicated and huge are caught pointing system.So
And it is above-mentioned catch pointing systems bulky, and be difficult to realize continuously quick and precisely be aligned, vehicle that can not be during exercise flies
It is used in row device or single equipment.
Invention content
(1) technical problems to be solved
The purpose of the present invention is to provide a kind of space optical communication receiver of focusing extensive angle anti-vibration of centrifugation and it is
System, to solve at least one above-mentioned technical problem.
(2) technical solution
An aspect of of the present present invention provides a kind of space optical communication receiver of the focusing extensive angle anti-vibration of centrifugation, packet
It includes：
N number of concentration module converges to each optically focused for receiving the optical signal for carrying data-signal, and by the optical signal
The focal surface of module, N ＞ 1；
N number of detector, an apex angle of each detector are located at the focal point of each concentration module, described poly- for detecting
The optical signal of optical module convergence；And
Processing module, the detectable signal for being detected to each detector are handled, and determine the position of the light source
Information simultaneously restores the data-signal.
In some embodiments of the invention, the optical signal is visible light, ultraviolet light or infrared ray.
In some embodiments of the invention, the concentration module is lens and/or speculum, and the concentration module
The filter coating consistent with the wave-length coverage of the optical signal is coated on surface.
In some embodiments of the invention, the format of the optical signal is that binary intensity modulates OOK formats, pulse width
Degree modulation PAM formats, pulse width modulation (PWM) format or analogue signal amplitude modulation.
In some embodiments of the invention, the location information of the light source is according to the light distribution feelings on each detector
What condition was calculated.
In some embodiments of the invention, the processing module is fpga chip.
In some embodiments of the invention, the detector is Si-based photodetectors and InGaAsP detector.
Another aspect of the present invention additionally provides a kind of space optical communication system of the focusing extensive angle anti-vibration of centrifugation,
Including：
Transmitter, including：
Circuit module, for handling externally input data-signal；
Laser module for emitting laser signal, and modulates circuit module output treated signal, to obtain
The optical signal；And
The space optical communication receiver of the focusing extensive angle anti-vibration of centrifugation of any description above.
In some embodiments of the invention, the laser module is that semiconductor laser, solid state laser or gas swash
Light device.
(3) advantageous effect
The space optical communication receiver and system of the focusing extensive angle anti-vibration of centrifugation of the present invention, compared to existing skill
Art has at least the following advantages：
1, the detector of receiver and concentration module correspond, and form optically focused-detection module, form unsymmetric structure,
And an apex angle of each detector is located at the focal point of each concentration module, can separately detect the light letter of different incident directions
Number, it can realize that the wide-angle of receiver receives and stablize antivibration.
2, system transmitting end signal wide-angle is sent, receiving end signal wide-angle detection, when communicating pair because of external environment
And when vibration, rotation occurs, as long as vibration and rotation amplitude are less than spot size and receiving angle, so that it may to keep communicating.
3, this system only with quantity identical as concentration module detector, it is simple in structure, it is of low cost, have it is extremely strong
Practical value.
4, its information position can directly be analyzed from signal light and be extracted to receiving terminal, be not necessarily to additional beacon beam and detection
Device coordinates the simple mechanical servo of low speed, or catches pointing system, you can the space realized rapid alignment, stablize antivibration
Optical communication link.
Description of the drawings
Fig. 1 is the structural representation of the space optical communication receiver of the focusing extensive angle anti-vibration of centrifugation of the embodiment of the present invention
Figure.
Fig. 2 is the vertical view of the space optical communication receiver of the focusing extensive angle anti-vibration of centrifugation of the embodiment of the present invention.
Fig. 3 is the side view of the space optical communication receiver of the focusing extensive angle anti-vibration of centrifugation of the embodiment of the present invention.
Fig. 4 is the structural representation of the space optical communication system of the focusing extensive angle anti-vibration of centrifugation of the embodiment of the present invention
Figure.
Specific implementation mode
The small resistance to shock of space optical communication receiving angle based on the prior art is poor, and the present invention provides a kind of centrifugation focusing
The space optical communication receiver and system of wide-angle degree anti-vibration, the detector and concentration module of receiver correspond, composition
Optically focused-detection module forms unsymmetric structure, and an apex angle of each detector is located at the focal point of each concentration module, energy
The optical signal of different incident directions is enough separately detected, can realize that the wide-angle of receiver receives and stablize antivibration.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
The one side of the embodiment of the present invention provides a kind of space optical communication reception of the focusing extensive angle anti-vibration of centrifugation
Machine, Fig. 1 are the structural schematic diagram of the space optical communication receiver of the focusing extensive angle anti-vibration of centrifugation of the embodiment of the present invention, such as
Shown in Fig. 1, which includes：N number of concentration module 11, N number of detector 12 and processing module 13.
N number of concentration module 11 converges to each gather for receiving the optical signal for carrying data-signal, and by the optical signal
The focal surface of optical module 11, N ＞ 1, wherein the data-signal can be digital signal or analog signal.
Wherein, the optical signal can be visible light, ultraviolet light or infrared ray, in fact, optical signal is as carrier wave, no
Limit wave-length coverage..
Data-signal may be used straight mode transfer formula and be loaded directly on laser, transferring pattern can also be used laser
Then the optical signal of output is exported by outer adjusting laser.The format of optical signal can be binary intensity modulate OOK formats,
Pulse amplitude modulation PAM formats, pulse width modulation (PWM) format or analogue signal amplitude modulation.
The concentration module 11 can be lens and/or speculum.That is, concentration module 11 can be multi-disc lens
The lens group of composition can also use speculum to substitute which part or whole lens.
Preferably, concentration module 1111 can plate the filter coating consistent with the wave-length coverage of the optical signal.In this way, transmitting
End and receiving end signal processing module can increase forward error correction coding, reduce the communication system bit error rate.
N number of detector 12, an apex angle of each detector 12 is located at the focal point of each concentration module 11, for detecting
The optical signal that the concentration module 11 converges.The detector 12 can be Si-based photodetectors 12, InGaAsP detector
The other kinds of detectors 12 such as 12, the present invention is not restricted.
Each detector 12 of receiver 1 corresponds to a concentration module 11, forms an optically focused-detection module, each
Concentration module 11 in optically focused-detection module is different from the relative position of detector 12, and an apex angle of each detector 12
Positioned at the focal point of each concentration module 11, unsymmetric structure is formed, the optical signal of different incident directions is separately detected, can realize
The wide-angle of receiver 1 receives and stablizes antivibration.
Processing module 13, the processing module 13 can be FPGA (field programmable gate array) chip, high-speed microprocessor
Chip or other kinds of chip, the detectable signal for being detected to each detector 12 are handled, and are determined described in transmitting
The location information of light source simultaneously restores the data-signal.Wherein, preferably fpga chip can realize the programmable of program, with
Realize more different function.
It should be noted that the location information of the light source is calculated according to the light distribution situation on each detector
, in general, the stronger detector of light intensity is closer from light source, and the weaker detector of light intensity is remoter from light source, specific position
It also needs to obtain by calculating.
The concentration module of receiving terminal and detector need to correspond in Fig. 1, " lens module-spy in each transceiver module
The quantity of survey device " can be 4 groups.It is needed using the lens group of lesser number (such as 2 groups) or greater number (such as 6 groups or 9 groups)
The rationally spatial position of arrangement modules.All lens of receiving terminal can plate filter coating, and filter coating needs and swashs through wavelength
Light device output wavelength is consistent.The processing module of receiving terminal needs the optical signal for receiving multiple detectors to analyze,
Reduction transmitting signal, and according to the optical signal strength distribution on detector, the location information of output light source, after which can be used for
Mechanical registeration process after the mechanical servo structure of continuous installation.
Fig. 2 is the vertical view of the space optical communication receiver of the focusing extensive angle anti-vibration of centrifugation of the embodiment of the present invention,
As shown in Fig. 2, four circles represent four lens in figure, the far point of lens center represents focal position, and four squares, which represent, to be placed
Four detectors on pcb board.In this design, concentration module is made of single collector lens, four pieces of collector lens focuses
Be respectively aligned to four film explorer apex angles, range finder both sides are 1mm, the size of each film explorer be 10mm ×
10mm。
Fig. 3 is the side view of the space optical communication receiver of the focusing extensive angle anti-vibration of centrifugation of the embodiment of the present invention,
As shown in figure 3, the focal length of every face lens is 32mm, when signal light with normal is angled is incident on lens surface,
If incident angle is less than window angle, hot spot can fall on and generate signal on detector；When incident angle be more than window angle, then
Hot spot is fallen on outside detector, can not generate signal.According to geometrical relationship, window angle=arctan (L/f), wherein L is detection
Device effective length, f are the focal length of lens, and according to Fig. 3 dimensionings, window angle is about ± 14 degree.
Have 4 concentration modules and 4 detectors in Fig. 2 and structure shown in Fig. 3, each optically focused-detection module it is opposite
Position is different, is embodied in the position difference of collector lens focus on the detector, 4 optically focused-detection module forms non-
Symmetrical detecting structure, according to Fig.3, the unsymmetric structure can significantly improve detection angle.It is understood that Fig. 2 and
Fig. 3 is only used as a reference implementation example, and in other embodiments, the size of N can be selected according to actual conditions.
The another aspect of the embodiment of the present invention additionally provides a kind of space optical communication of the focusing extensive angle anti-vibration of centrifugation
System, Fig. 4 are the structural schematic diagram of the space optical communication system of the focusing extensive angle anti-vibration of centrifugation of the embodiment of the present invention, such as
Shown in Fig. 4, which includes：The space optical communication receiver 1 of transmitter 2 and the focusing extensive angle anti-vibration of centrifugation above-mentioned.
Transmitter 2, including circuit module 21 and laser module 22.
Circuit module 21, for handling externally input data-signal；Laser module 22, for emitting laser letter
Number (way of output of laser signal can be lens wide-angle output, or utilize the output of optical phased array technology orientation), and adjusts
Circuit module 21 processed output treated signal, to obtain the optical signal.
The laser module 22 can be semiconductor laser, solid state laser or gas laser, can be according to reality
Situation is selected.
Furthermore it is possible to according to the communication distance of transmitter 2 and receiver 1, the radiation pattern of laser module 22 is selected.Close
When Cheng Tongxin, laser module 22 can also utilize optical phased array technology with the wide angle emitted optical signal, in telecommunication
Directional transmissions optical signal.
Multiple aperture space optical communication receiver above-mentioned receives the optical signal for coming from laser module output, and by poly-
Optical module, detector and processing module processing, so that it is determined that the location information of the light source and externally input data-signal.
To sum up, the space optical communication receiver and system of the focusing extensive angle anti-vibration of centrifugation of the invention, receiver
Detector and concentration module correspond, form optically focused-detection module, form unsymmetric structure, and the one of each detector
A apex angle is located at the focal point of each concentration module, can separately detect the optical signal of different incident directions, can realize receiver
Wide-angle receive and stablize antivibration；And it is simple in structure, cost is relatively low, has higher cost performance.
It unless there are known entitled phase otherwise anticipates, the numerical parameter in this specification and appended claims is approximation, energy
Enough required characteristic changings obtained by content through the invention.
Furthermore "comprising" does not exclude the presence of element or step not listed in the claims." one " before element
Or "one" does not exclude the presence of multiple such elements.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention
Within the scope of shield.
Claims (9)
1. a kind of space optical communication receiver of the focusing extensive angle anti-vibration of centrifugation, including：
N number of concentration module converges to each concentration module for receiving the optical signal for carrying data-signal, and by the optical signal
Focal surface, N ＞ 1；
N number of detector, an apex angle of each detector is located at the focal point of each concentration module, for detecting the optically focused mould
The optical signal of block convergence；And
Processing module, the detectable signal for being detected to each detector are handled, and determine the location information of the light source
And restore the data-signal.
2. receiver according to claim 1, wherein the optical signal is visible light, ultraviolet light or infrared ray.
3. receiver according to claim 1, wherein the concentration module is lens and/or speculum, and the optically focused
The filter coating consistent with the wave-length coverage of the optical signal is coated on the surface of module.
4. receiver according to claim 1, wherein the format of the optical signal be binary intensity modulate OOK formats,
Pulse amplitude modulation PAM formats, pulse width modulation (PWM) format or analogue signal amplitude modulation.
5. receiver according to claim 1, wherein the location information of the light source is according to the light intensity on each detector
What distribution situation was calculated.
6. receiver according to claim 1, wherein the processing module is fpga chip.
7. receiver according to claim 1, wherein the detector is that Si-based photodetectors and InGaAsP detect
Device.
8. a kind of space optical communication system of the focusing extensive angle anti-vibration of centrifugation, including：
Transmitter, including：
Circuit module, for handling externally input data-signal；
Laser module for emitting laser signal, and modulates circuit module output treated signal, described to obtain
Optical signal；And
The space optical communication receiver of the focusing extensive angle anti-vibration of centrifugation as described in claim 1 to 7 is any.
9. system according to claim 8, wherein the laser module is semiconductor laser, solid state laser or gas
Body laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810365313.5A CN108650027A (en) | 2018-04-20 | 2018-04-20 | Centrifuge the space optical communication receiver and system of focusing extensive angle anti-vibration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810365313.5A CN108650027A (en) | 2018-04-20 | 2018-04-20 | Centrifuge the space optical communication receiver and system of focusing extensive angle anti-vibration |
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| CN108650027A true CN108650027A (en) | 2018-10-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225129A (en) * | 2021-05-07 | 2021-08-06 | 中国科学院半导体研究所 | Conformal space optical communication omnidirectional receiving equipment and method |
-
2018
- 2018-04-20 CN CN201810365313.5A patent/CN108650027A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225129A (en) * | 2021-05-07 | 2021-08-06 | 中国科学院半导体研究所 | Conformal space optical communication omnidirectional receiving equipment and method |
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