CN105827310B - A kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens - Google Patents
A kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens Download PDFInfo
- Publication number
- CN105827310B CN105827310B CN201610168447.9A CN201610168447A CN105827310B CN 105827310 B CN105827310 B CN 105827310B CN 201610168447 A CN201610168447 A CN 201610168447A CN 105827310 B CN105827310 B CN 105827310B
- Authority
- CN
- China
- Prior art keywords
- wide
- subsystem
- expanding lens
- laser
- beam expanding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The present invention relates to a kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens, belong to FreeSpace Laser Communications Technique field.A kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens proposed by the present invention is made of wide-angle beam expanding lens optical antenna subsystem, double wedge rough tracking subsystems, incident laser detection subsystem and shrink beam optical subsystem.The antenna realizes that echo signal all-round to orientation, in pitching polarizers of big angle scope receives using wide-angle beam expanding lens, the progress of multiple targets is tracked simultaneously using double wedge groups, using cassette shrink beam system, the beam size that large-aperture optical antenna receives is compressed, reduce the bore of follow-up system, reduce fabrication design difficulty and be conducive to the small light of optical system.The present invention be conducive to dimensional orientation very close to multiple communication targets be carried out at the same time laser communication.
Description
Technical field
The present invention relates to a kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens, belong to laser space communication
Technical field.
Background technology
Laser space communication compared with other wireless communications, have be not required frequency license, frequency it is wide, it is of low cost,
The advantages that good confidentiality, electromagnetism interference.Many countries have put into substantial contribution in the world and manpower carries out laser space communication
Technical research, and tried in theoretical research, analogue simulation, tackling problems in key technologies, principle prototype development and the demonstration of a variety of links
Proved recipe face achieves multinomial achievement.Current successful laser communication demonstration and verification is all point-to-point operating mode, development
Trend is point to multi--point and multi-point laser communication simultaneously, so as to fulfill laser space communication networking.Japan proposes laser
The double-deck low orbit global communication networking plan combined with microwave communication is specifically demonstrated in 700 kilometers and 2000 kilometers of the earth
Two sets of satellite systems of low aerial deployment feasibility；It is transferred between satellite using laser interconnection technique into row information, with ground
The communication link of juncture station be responsible for by upper strata satellite, using laser link；Lower floor's satellite is responsible for and small-scale terrestrial station and movement
The communication of user, using microwave link.(bibliography：1st, to some pondering of Developing Mobile Satellite Communication be lead to, Liu Hui
Outstanding, the first refined electric and electronics teaching journal .2002 in sea, the 1st phase .2 of volume 24, deep space TT＆C development communication technologies trend analysis woodss
Black .2005, the 3rd phase .3 of volume 24, star optic communication Point-to-multipoint scheme Primary Study sincere, the photons such as Gu Wenbo
Journal .2008, the 2nd phase of volume 37.), in addition the method for two kinds of laser space communication networkings of U.S.'s proposition, one of which method are
Multiple sending and receiving ends are placed in reflecting element, by adjusting transmitting-receiving end position, realize the laser space communication of difference, different distance
Adopt (U.S. Patent number：6445496B1), another method is looked in the distance structure using R-C, and the optical fiber array of N × N is placed at focal plane
Row, larger focal plane is provided, realize single optics look in the distance structure point to multi--point laser space communication use detector array
Row couple the scheme (U.S. Patent number for expanding field of view of receiver with focal plane：6912360B1).These build on laser communication networking
The Tentative Ideas of specific system, it is impossible to applied to a wide range of laser space communication networking of multi-point, technically there are bottleneck, no
Possesses being widely applied property.An a kind of also Chinese patent " point to multi--point based on diverse combined rotary paraboloid structure
The laser communication device " (patent No.：ZL201010199217.1) using the paraboloid of revolution as optical antenna, this kind of structural energy
Utilization rate is low, and Receiver aperture is big, and the realizations such as subsequent optical system processing arrangement are more difficult.Another patent " laser space communication
With big visual field concentric spherical surface device " (number of patent application：201418004682.4) realized using big visual field concentric spherical surface device
Multiple spot laser communication simultaneously, but its sending and receiving apparatus need to be slided to realize the tracking to target, control ratio in image planes
It is more difficult.An a kind of other patent " optical antenna for multipoint laser communication " (patent No.：ZL201110141158.7) use
Multiple reflection essence splices optical antenna to realize point to multi--point laser communication, and above-mentioned five kinds of patents cannot be to two spaces azimuth
Very close to target be carried out at the same time laser space communication.
The content of the invention
In order in multipoint laser communication system, realize to multiple attitudes very close to target be carried out at the same time space
Laser communication, the present invention propose a kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens.
A kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens, the device is by wide-angle beam expanding lens optical antenna
Subsystem (1), double wedge rough tracking subsystems (2), incident laser detection subsystem (3), cassette shrink beam subsystem (4) composition.
Wide-angle beam expanding lens optical antenna subsystem (1) by being inverted Galilean telescope using constructing, depending on
Rink corner is larger, and wide-angle beam expanding lens optics is passed through in orientation up to 360 ゜, pitch orientation up to 0~± 80 ゜, the incident light of different angle
It with parallel light emergence after antenna subsystem (1), and is overlapped at antenna emergent pupil, but exit direction is different.
Double wedge rough tracking subsystems (2) are made of N number of double wedges (7), are positioned over wide-angle beam expanding lens optical antenna point and are
At system (1) emergent pupil.
Incident laser detection subsystem (3) is made of incident laser detecting lenses (9) and incident laser detection camera (10),
It is positioned on the outside of wide-angle beam expanding lens optical antenna subsystem (1), optical axis is flat with wide-angle beam expanding lens optical antenna subsystem (1)
Row.
Cassette shrink beam subsystem (4) is positioned over along the antenna spindle direction after double wedge rough tracking subsystems (2).
A kind of course of work of the optical antenna for multipoint laser communication based on wide-angle beam expanding lens is as follows：
Wide-angle beam expanding lens optical antenna subsystem (1) is incided into from the incident laser beam of space different directions and incidence swashs
It is directional light after transmission wide-angle beam expanding lens (5) expands in optical detection subsystem (3), and the weight at camera lens emergent pupil (6)
It is folded, it then incides at different angles in double wedge rough tracking subsystems (2).Incident laser detection subsystem (3) is visited simultaneously
The direction of incident laser and light beam number are measured, and transmits these information to double wedge rough tracking subsystems (2), according to light beam
Directional information controls corresponding double wedges (7), it is allowed to rotate corresponding angle so that wide-angle beam expanding lens optical antenna point
Incident light at system (1) emergent pupil can spread into cassette shrink beam after double wedge group deviations parallel to antenna rotation axis
Subsystem (4), to complete the rough tracking to target.Control is optimized to N number of double wedges (7) according to light beam number, makes to own
Double wedge groups can carry out incident beam corresponding thereto appropriate deviation, to improve the capacity usage ratio of system.This
Sample is just completed to being tracked while multiple echo signal light, the incident light after double wedge group deviations parallel to systematic optical axis into
Enter into cassette shrink beam subsystem (4), then separation detection is carried out by subsequent optical system, this completes multipoint laser communications
It receives；For multiple attitudes very close to communication target, using a double wedges one communication target is carried out with
Track with communicating, so as to fulfill to multiple attitudes very close to target be carried out at the same time laser space communication.It can according to light path
Against principle, the emission system in post laser communication system emits laser beam according to the direction of target to be communicated, contracts by cassette
It after beam subsystem (4), incides into double wedge rough tracking systems (2), deviation, Ran Houyou is carried out by corresponding double wedges (7)
Wide-angle beam expanding lens optical antenna subsystem (1) is launched according to fixed-direction, and this completes multipoint laser communication transmittings.
Advantageous effect
It is complete in the horizontal direction that the present invention proposes that the optical antenna for multipoint laser communication based on wide-angle beam expanding lens can be realized
Week, pitch orientation are in the laser communication for designing the point to multi--point in field angle；Compared with prior art, beneficial effect of the invention
Fruit is：The rough tracking to target is realized by double wedge groups, therefore compared to based on paraboloidal optical antenna, can realizing pair
Two close targets of attitude communicate simultaneously；Compared to big visual field concentric spherical surface device, tracing control difficulty smaller；
Simultaneously using cassette shrink beam subsystem, the beam diameter that large-aperture optical antenna receives is compressed, reduces follow-up system
Bore, reduce fabrication design difficulty and be simultaneously conducive to the small light of optical system；In addition this optical antenna can be more according to target
Few flexibly definite tracking scheme in the case where target is less, tracks same target using multiple double wedges, improves system light
Energy utilization rate is conducive to the configuration of system resource reasonably optimizing.
Description of the drawings
Fig. 1 is a kind of optical antenna for multipoint laser communication schematic diagram based on wide-angle beam expanding lens, this figure is also specification
Figure of abstract, wherein：1 wide-angle beam expanding lens optical antenna subsystem, 2 pairs of wedge rough tracking subsystems, the detection of 3 incident lasers) point
System, 4 cassette shrink beam subsystems.
Fig. 2 is optical antenna subsystem schematic diagram, wherein 5 transmission wide-angle beam expanding lens, 6 be antenna emergent pupil.
Fig. 3 is double wedge rough tracking subsystem schematic diagrames, this figure is the top view of double wedge rough tracking subsystems, wherein 7
For double wedges.
Fig. 4 is double wedge schematic diagrames, this figure is the side sectional view of double wedges, wherein 8 monochromatic light wedges.
Fig. 5 positions incident laser detection subsystem schematic diagram, wherein 9 be laser acquisition camera lens, 10 be laser acquisition camera.
Specific embodiment
Optical antenna subsystem (1) is using transmission wide-angle beam expanding lens (5), for receiving the logical of different communication objective emission
Believe flashlight, working range orientation is up to 360 ゜, and pitch orientation is up to 0~± 80 ゜.The flashlight of different communication objective emission
After being expanded by the transmission wide-angle beam expanding lens (5) in optical antenna subsystem (1), with parallel light emergence, and in antenna
It is overlapped at emergent pupil (6), but each flashlight exit direction is different.The incident angle of emergent ray is relatively small, by target zone angle
More than 100 degree be reduced to for ten several years.Since pitching changes in small angle range, double wedge rough tracking subsystems can be used
(2) rough tracking while to multiple targets is realized.
Double wedge rough tracking subsystems (2) are made of double wedges (7) N, such as Fig. 3, are double wedge rough tracking subsystems (2)
Top view, each circle represents a pair of double wedges (7).Shown in Fig. 4, the side sectional view of double wedges (7) is represented, each
Triangle represents a monochromatic light wedge (8), when light beam incides into every a pair of double wedge (7), two monochromatic light wedge (8) relative rotation
Certain angle realizes the deflection to light beam, has the function that deflect light beam.The double wedges (7) of each pair are realized to target
The rough tracking of N number of target can be achieved at the same time in tracking, whole system.When the double wedges (7) of each pair all realize surely all targets
After fixed rough tracking, each echo signal light is propagated each parallel to system axial rotary follow-up system.Due to each flashlight to double light
The incidence angle and target number of wedge rough tracking subsystem (2) be required for determining in advance, thus be placed in parallel by optical antenna into
Penetrate laser acquisition subsystem (3).
Incident laser detection subsystem (3) is made of incident laser detecting lenses (9) and laser acquisition camera (10), is placed
On the outside of wide-angle beam expanding lens optical antenna subsystem (1), optical axis is parallel with wide-angle beam expanding lens optical antenna subsystem (1).Swash
Optical detection camera (10) can respond all echo signal light, and signal angle of light is assured that according to facula position,
To double wedges (7) driving instruction it is made to deflect suitable angle, flashlight is made to enter cassette shrink beam point parallel to system rotation axis
In the visual field of system (4).According to definite target number, rough tracking task is distributed to each double wedges (7), in the less feelings of target
Under condition, same target can be tracked with two even three double wedges (7), to improve the system efficiency of light energy utilization as far as possible.
Cassette shrink beam subsystem (4) is to the light beam by optical antenna subsystem (1) and double wedge rough tracking subsystems (2)
Carry out shrink beam.Then subsequent optical system carries out separation detection, and this completes multipoint laser communication receptions；It can according to light path
Against principle, the emission system in post laser communication system emits laser beam according to the direction of target to be communicated, contracts by cassette
It after beam subsystem (4), incides into double wedge rough tracking systems (2), deviation, Ran Houyou is carried out by corresponding double wedges (7)
Wide-angle beam expanding lens optical antenna subsystem (1) is launched according to fixed-direction, and this completes multipoint laser communication transmittings.
Claims (4)
1. a kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens, which is characterized in that it is by wide-angle beam expanding lens light
Learn antenna subsystem（1）, double wedge rough tracking subsystems（2）, incident laser detection subsystem（3）With cassette shrink beam subsystem
（4）Composition；
The wide-angle beam expanding lens optical antenna subsystem（1）By being inverted Galilean telescope using constructing, orientation
Up to 360 ゜, pitch orientation passes through wide-angle beam expanding lens optical antenna subsystem up to 0 ~ ± 80 ゜, the incident light of different angle（1）
It afterwards with parallel light emergence, and is overlapped at antenna emergent pupil, but exit direction is different；
Double wedge rough tracking subsystems（2）By N number of double wedges（7）Composition, being positioned over wide-angle beam expanding lens optical antenna point is
System（1）At emergent pupil.
2. a kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens according to claim 1, feature exist
In incident laser detection subsystem（3）By incident laser detecting lenses（9）Camera is detected with incident laser（10）Composition is placed
In wide-angle beam expanding lens optical antenna subsystem（1）Outside, optical axis and wide-angle beam expanding lens optical antenna subsystem（1）It is parallel.
3. a kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens according to claim 1, feature exist
In cassette shrink beam subsystem（4）Double wedge rough tracking subsystems are positioned over along the antenna spindle direction（2）Afterwards.
4. a kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens according to claim 1, feature exist
In a kind of course of work of the optical antenna for multipoint laser communication based on wide-angle beam expanding lens is as follows：
Wide-angle beam expanding lens optical antenna subsystem is incided into from the incident laser beam of space different directions（1）It is visited with incident laser
Survey subsystem（3）On, through transmiting wide-angle beam expanding lens（5）It is directional light after expanding, and in camera lens emergent pupil（6）Place's overlapping, so
Incide into double wedge rough tracking subsystems at different angles afterwards（2）In；The subsystem of incident laser detection simultaneously（3）Detection comes in and goes out
The direction of laser and light beam number are penetrated, and transmits these information to double wedge rough tracking subsystems（2）, believed according to beam direction
Breath is to corresponding double wedges（7）It is controlled, it is allowed to rotate corresponding angle so that wide-angle beam expanding lens optical antenna subsystem
（1）Incident light at emergent pupil passes through N number of double wedges（7）After deviation, cassette shrink beam can be spread into parallel to antenna rotation axis
Subsystem（4）, to complete the rough tracking to target, according to light beam number to N number of double wedges（7）Control is optimized, is made N number of double
Wedge（7）Appropriate deviation can be carried out to incident beam corresponding thereto, to improve the capacity usage ratio of system；So
It just completes to being tracked while multiple echo signal light, through N number of double wedges（7）Incident light after deviation is parallel to systematic optical axis
Enter cassette shrink beam subsystem（4）In, then separation detection carried out by subsequent optical system, this completes multiple spot laser to lead to
Letter receives；For multiple attitudes very close to communication target, one communication target is carried out using a double wedges
Tracking and communication, so as to fulfill to multiple attitudes very close to target be carried out at the same time laser space communication, according to light path
Principle of reversibility, the emission system in post laser communication system emits laser beam according to the direction of target to be communicated, by cassette
Shrink beam subsystem（4）Afterwards, double wedge rough tracking subsystems are incided into（2）In, by corresponding double wedges（7）Deviation is carried out, so
Afterwards by wide-angle beam expanding lens optical antenna subsystem（1）Launch according to fixed-direction, this completes multipoint laser communications
Transmitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610168447.9A CN105827310B (en) | 2016-03-23 | 2016-03-23 | A kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610168447.9A CN105827310B (en) | 2016-03-23 | 2016-03-23 | A kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105827310A CN105827310A (en) | 2016-08-03 |
| CN105827310B true CN105827310B (en) | 2018-05-22 |
Family
ID=56524418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610168447.9A Expired - Fee Related CN105827310B (en) | 2016-03-23 | 2016-03-23 | A kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105827310B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120344A (en) * | 2018-10-30 | 2019-01-01 | 宁波光舟通信技术有限公司 | Signal transmitting system between star |
| CN110299940A (en) * | 2019-06-06 | 2019-10-01 | 长春理工大学 | A kind of optical antenna for multipoint laser communication based on refraction-reflection annular lens |
| CN110233666A (en) * | 2019-06-06 | 2019-09-13 | 长春理工大学 | A kind of optical antenna for multipoint laser communication based on biconvex reflection microscope group |
| CN110308553B (en) * | 2019-07-29 | 2021-03-02 | 天津大学 | Intermediate infrared imaging optical system for field switching based on micro-lens array |
| CN111610626B (en) * | 2020-05-29 | 2021-04-27 | 中国科学院长春光学精密机械与物理研究所 | Antenna structure capable of realizing simultaneous and continuous multi-path laser communication |
| CN112564793B (en) * | 2020-12-07 | 2022-04-12 | 长春理工大学 | One-point multiple access space laser communication networking terminal and system |
| CN112543059B (en) * | 2020-12-09 | 2022-03-29 | 长春理工大学 | Common receiving optical path wireless laser communication networking antenna |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1347208A (en) * | 2000-10-05 | 2002-05-01 | 朗迅科技公司 | One-point-to-multipoint free space radio optical communication system |
| US7689127B1 (en) * | 2004-04-15 | 2010-03-30 | Lockheed Martin Corporation | Deformable mirrors for multi-access laser communications terminal |
| CN101873167A (en) * | 2010-06-12 | 2010-10-27 | 长春理工大学 | Point-to-multipoint laser communication device based on diverse combined rotary paraboloid surface structure |
| CN102231645A (en) * | 2011-05-30 | 2011-11-02 | 长春理工大学 | Optical antenna for multipoint laser communication |
| CN203827349U (en) * | 2014-05-08 | 2014-09-10 | 长春理工大学 | Optics antenna of one-to-many laser communication terminal |
| CN104160640A (en) * | 2012-01-09 | 2014-11-19 | 阿托隆有限责任公司 | USPL-FSO lasercom point-to-point and point-to-multipoint optical wireless communication |
| CN104834148A (en) * | 2015-04-27 | 2015-08-12 | 西安空间无线电技术研究所 | Bidirectional four-beam liquid crystal optical phased-array antenna and multi-user communication method thereof |
-
2016
- 2016-03-23 CN CN201610168447.9A patent/CN105827310B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1347208A (en) * | 2000-10-05 | 2002-05-01 | 朗迅科技公司 | One-point-to-multipoint free space radio optical communication system |
| US7689127B1 (en) * | 2004-04-15 | 2010-03-30 | Lockheed Martin Corporation | Deformable mirrors for multi-access laser communications terminal |
| CN101873167A (en) * | 2010-06-12 | 2010-10-27 | 长春理工大学 | Point-to-multipoint laser communication device based on diverse combined rotary paraboloid surface structure |
| CN102231645A (en) * | 2011-05-30 | 2011-11-02 | 长春理工大学 | Optical antenna for multipoint laser communication |
| CN104160640A (en) * | 2012-01-09 | 2014-11-19 | 阿托隆有限责任公司 | USPL-FSO lasercom point-to-point and point-to-multipoint optical wireless communication |
| CN203827349U (en) * | 2014-05-08 | 2014-09-10 | 长春理工大学 | Optics antenna of one-to-many laser communication terminal |
| CN104834148A (en) * | 2015-04-27 | 2015-08-12 | 西安空间无线电技术研究所 | Bidirectional four-beam liquid crystal optical phased-array antenna and multi-user communication method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 一点对多点同时空间激光通信光学跟瞄技术研究;姜会林 等;《中国激光》;20150410;第0405008-1至0405008-9页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105827310A (en) | 2016-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105827310B (en) | A kind of optical antenna for multipoint laser communication based on wide-angle beam expanding lens | |
| CN105157697B (en) | Indoor mobile robot pose measurement system and measurement method based on optoelectronic scanning | |
| US10581525B2 (en) | Method and apparatus for omnidirectional optical communication | |
| US8386096B2 (en) | Relative navigation system | |
| CN102830714B (en) | Advanced collimation method in open space laser communication | |
| US8352100B2 (en) | Relative navigation system and a method thereof | |
| US7657183B2 (en) | Method and apparatus for hemispherical retargeting | |
| CN110233666A (en) | A kind of optical antenna for multipoint laser communication based on biconvex reflection microscope group | |
| RU2517800C1 (en) | Method of coelosphere coverage from space craft for surveillance of celestial bodies and coelosphere coverage space system for surveillance of celestial bodies and detection of solar system bodies to this end | |
| CN101672642B (en) | Optical precision tracking detector based on double pyramidal rectangular pyramids | |
| CN113486447B (en) | Inter-satellite solar time prediction method and device and electronic equipment | |
| CN104570146A (en) | Space debris detection imaging and communication system | |
| JP2024045450A (en) | data relay satellite | |
| CN107422321A (en) | Microwave stares relevance imaging earth observation method | |
| US20100158536A1 (en) | Optical Transceiver Assembly with Transmission-Direction Control | |
| US20120225725A1 (en) | PACASPACEDEBRIS Environmental Gaming Protocol | |
| CN101672641B (en) | Optical precision tracking detector based on double four quadrant photoelectric detectors | |
| US10317218B2 (en) | Planetary surveillance system | |
| CN104697527A (en) | Large-view-field X-ray navigation sensor based on lobster eyes | |
| CN110299940A (en) | A kind of optical antenna for multipoint laser communication based on refraction-reflection annular lens | |
| CN203827349U (en) | Optics antenna of one-to-many laser communication terminal | |
| Zhang et al. | Laser Inter-Satellite Links Technology | |
| Seitzer et al. | LEDsats: LEO CubeSats with LEDs for optical tracking | |
| RU2497079C1 (en) | Method for photonic location of aerial object | |
| CN111076729B (en) | Deep space spacecraft relative position measuring method based on intensity coherent detection array |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20190323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |