CN102095404B - Zoom ocular based high-precision signal light incident angle detection system with variable viewshed and signal light incident angle detection method - Google Patents
Zoom ocular based high-precision signal light incident angle detection system with variable viewshed and signal light incident angle detection method Download PDFInfo
- Publication number
- CN102095404B CN102095404B CN2010106111739A CN201010611173A CN102095404B CN 102095404 B CN102095404 B CN 102095404B CN 2010106111739 A CN2010106111739 A CN 2010106111739A CN 201010611173 A CN201010611173 A CN 201010611173A CN 102095404 B CN102095404 B CN 102095404B
- Authority
- CN
- China
- Prior art keywords
- incident angle
- flashlight
- zoom
- light
- aim
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 claims abstract description 41
- 238000003384 imaging method Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000000686 essence Substances 0.000 description 18
- 238000004891 communication Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Landscapes
- Studio Devices (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a zoom ocular based high-precision signal light incident angle detection system with variable viewshed and a signal light incident angle detection method, relating to a high-precision incident light angle detection system with variable viewshed and a detection method. By adopting the system and the method, the problems of fixed viewshed and fixed precision of the existing detection systems in the processes of pointing, capturing and tracking are solved, and not only is the requirement of the system for large viewshed in the processes of pointing and capturing met, but also the requirement of the system for high detection precision in the process of tracking is met. The system is characterized in that a teleobjective focuses the signal light on the zoom ocular; the signal light is transmitted to a fine pointing mirror by the zoom ocular; the transmission light is reflected to an imaging lens system by the fine pointing mirror; and the reflected light is focused on the detection surface of a CCD (charge coupled device) detector by the imaging lens system. The method is characterized in that a tracking and pointing control system adjusts the focal length of the zoom ocular to fc to realize pointing and capturing of the signal light; and the tracking and pointing control system adjusts the focal length to fc/beta to realize tracking of the incident light, thus realizing detection of the incident angle of the signal light. The system and the method are suitable for detecting the incident angles of the signal light beams.
Description
Technical field
The present invention relates to a kind of change ken high precision incident angle detection system and detection method.
Background technology
When space optical communication system was worked, aiming required terminal incident angle of light detection system to have the characteristics of the big ken with acquisition procedure, and requires lower to the incident angle of light detection accuracy; Tracing process requires this system high to the incident angle of light detection accuracy, and ken requirement is less.The present space optical communication terminal incident angle of light detection system ken is fixed, and the angle detection precision is fixed, and can not satisfy above 2 requirements simultaneously, can only carry out compromise to a certain degree.
Summary of the invention
The present invention is that the existing space optical communication terminal incident angle of light detection system ken is fixing fixedly to cause taking into account in aiming, the acquisition procedure problem of detected with high accuracy in ken detection greatly and the tracing process with the angle detection precision in order to solve, thereby a kind of change ken high-precision signal angle of light degree detection system and flashlight incident angle detection method based on the zoom eyepiece is provided.
Based on the change ken high-precision signal angle of light degree detection system of zoom eyepiece, it comprises that telephotolens, zoom eyepiece, essence are taken aim at mirror, imaging lens group, ccd detector and with taking aim at control system;
The detectable signal output terminal of ccd detector is connected with following the detectable signal input end of taking aim at control system; Zoom control signal output terminal with taking aim at control system is connected with the zoom control signal input end of zoom eyepiece, follows the essence of taking aim at control system to take aim at control signal output ends and essence and takes aim at the essence of mirror and take aim at signal input end and be connected;
Telephotolens focuses to the zoom eyepiece with the flashlight of incident, and is transmitted through essence through the zoom eyepiece and takes aim at mirror, and transmitted light is taken aim at mirror reflection to imaging lens group through essence, and reflected light focuses to the test surface of ccd detector through imaging lens group.
Based on the flashlight incident angle detection method of said system,
Focal length with taking aim at control system adjustment zoom eyepiece is f
c, make the ken of detection system maximum, realize the aiming of flashlight and catch;
After aiming and catching, essence is taken aim at control system control essence and taken aim at mirror deflection, makes incident light in the imaging of the center of ccd detector, and system gets into tracing process: the focal length with taking aim at control system control zoom eyepiece is f
c/ β, and the focus of zoom eyepiece is overlapped with the focus of telephotolens, realize tracking to incident light, and then the incident angle of picked up signal light;
Said β is the real number greater than 1.
The incident angle of flashlight comprises that flashlight is at the incident angle of azimuth direction with to the incident angle of flashlight in pitch orientation: flashlight at the incident angle α of azimuth direction is:
Flashlight at the incident angle β of pitch orientation is:
In the formula: (X0 Y0) is the position coordinates on the ccd detector when the flashlight incident angle is 0 °; (X1 Y1) is the position coordinates of current demand signal light on ccd detector; F is the total focal length of system.
The detection ken θ of ccd detector under aiming and acquisition procedure
1For:
In the formula: m is a square CCD detector pixel line number, and d is the length of side of square pixel, f
wBe the focal length of telephotolens, f
lIt is the focal length of imaging lens group.
The detection accuracy Δ θ of ccd detector 5 incident angle of incident parallel beam under aiming and acquisition procedure
1For:
The detection ken θ of ccd detector 5 under tracing process
2For:
The detection accuracy Δ θ of the incident angle of the incident parallel beam of ccd detector 5 under tracing process
2For:
Beneficial effect: the present invention is based on telescope zoom eyepiece and be implemented in aiming and the acquisition procedure incident light is carried out the detection of the big ken; And in tracing process, incident light is carried out detected with high accuracy; Can take into account the aiming and catch, tracing process; Compare and existing system and method, of the present invention in aiming and acquisition procedure the system detection ken can increase more than 10 times, detection accuracy can improve more than 10 times in the tracing process.And the present invention has overcome need focus the technological prejudice that just can survey to the eyepiece group in the classic method, has realized the zoom detection to the incident angle of signal beams.
Description of drawings
Fig. 1 is the light path synoptic diagram of the present invention under aiming and acquisition procedure; Fig. 2 is the light path synoptic diagram of the present invention under tracing process.
Embodiment
Embodiment one, combination Fig. 1 and Fig. 2 explain this embodiment; Change ken high-precision signal angle of light degree detection system based on the zoom eyepiece; It comprises that telephotolens 1, zoom eyepiece 2, essence are taken aim at mirror 3, imaging lens group 4, ccd detector 5 and with taking aim at control system 6
The detectable signal output terminal of ccd detector 5 is connected with following the detectable signal input end of taking aim at control system 6; Zoom control signal output terminal with taking aim at control system 6 is connected with the zoom control signal input end of zoom eyepiece 2, follows the essence of taking aim at control system 6 to take aim at control signal output ends and essence and takes aim at the essence of mirror 3 and take aim at signal input end and be connected;
Telephotolens 1 focuses to zoom eyepiece 2 with the flashlight of incident, and is transmitted through essence through zoom eyepiece 2 and takes aim at mirror 3, and transmitted light is taken aim at mirror 3 through essence and reflexed to imaging lens group 4, and reflected light focuses to the test surface of ccd detector 5 through imaging lens group 4.
Embodiment two, based on the flashlight incident angle detection method of the described change ken high-precision signal angle of light degree detection system based on the zoom eyepiece of embodiment one, be f with the focal length of taking aim at control system 6 adjustment zoom eyepieces 2
c, make the ken of detection system maximum, realize the aiming of flashlight and catch;
After aiming and catching, essence is taken aim at control system 6 control essences and taken aim at mirror 3 deflections, makes incident light in the imaging of the center of ccd detector 5, and system gets into tracing process: the focal length with taking aim at control system 6 control zoom eyepieces 2 is f
c/ β, and the focus of zoom eyepiece 2 is overlapped with the focus of telephotolens 1, realize tracking to incident light, and then the incident angle of picked up signal light;
Said β is the real number greater than 1.
The incident angle of flashlight comprises that flashlight is at the incident angle of azimuth direction with to the incident angle of flashlight in pitch orientation: flashlight at the incident angle α of azimuth direction is:
Flashlight at the incident angle β of pitch orientation is:
In the formula: (X0 Y0) is position coordinates on the ccd detector when the flashlight incident angle is 0 ° (5); (X1 Y1) is the position coordinates of current demand signal light on ccd detector (5); F is the total focal length of system.(X0 is Y0) with (X1 is under the equal situation of the focal length of zoom eyepiece 2, to obtain Y1) to said position coordinates.
The detection ken θ of ccd detector 5 under aiming and acquisition procedure
1For:
In the formula: m is a square CCD detector pixel line number, and d is the length of side of square pixel, f
wBe the focal length of telephotolens 1, f
lIt is the focal length of imaging lens group 4.
The detection accuracy Δ θ of ccd detector 5 incident angle of incident parallel beam under aiming and acquisition procedure
1For:
The detection ken θ of ccd detector 5 under tracing process
2For:
The detection accuracy Δ θ of the incident angle of the incident parallel beam of ccd detector 5 under tracing process
2For:
In this embodiment, it is catoptron that essence is taken aim at mirror 3 front ends, takes aim at mirror 3 deflections with taking aim at control system 6 through controlling essence, realizes the angle of the incident beam of change imaging lens group 4.The pixel number of ccd detector 5 is m * m, and it is the square of d that pixel is shaped as the length of side.
Can know through formula (1), (2), compare tracing process, the big β of the detection ken of aiming and this system of acquisition procedure doubly.Can know through formula (3) and (4), compare aiming and acquisition procedure, the high β of the angular accuracy of tracing process doubly.Realized thus having taken into account and aimed at and catch and tracing process, in aiming and acquisition procedure, incident light has been carried out the big ken and survey, in tracing process, incident light has been carried out detected with high accuracy.
Claims (7)
1. based on the change ken high-precision signal angle of light degree detection system of zoom eyepiece, it is characterized in that: it comprises that telephotolens (1), zoom eyepiece (2), essence are taken aim at mirror (3), imaging lens group (4), ccd detector (5) and with taking aim at control system (6);
The detectable signal output terminal of ccd detector (5) is connected with following the detectable signal input end of taking aim at control system (6); Zoom control signal output terminal with taking aim at control system (6) is connected with the zoom control signal input end of zoom eyepiece (2), follows the essence of taking aim at control system (6) to take aim at control signal output ends and essence and takes aim at the essence of mirror (3) and take aim at signal input end and be connected;
Telephotolens (1) focuses to zoom eyepiece (2) with incoming signal light, and is transmitted through essence through zoom eyepiece (2) and takes aim at mirror (3), and transmitted light is taken aim at mirror (3) through essence and reflexed to imaging lens group (4), and reflected light focuses to the test surface of ccd detector (5) through imaging lens group (4).
2. the flashlight incident angle detection method of the change ken high-precision signal angle of light degree detection system based on the zoom eyepiece according to claim 1 is characterized in that: the focal length with taking aim at control system (6) adjustment zoom eyepiece (2) is f
c, make the ken of detection system maximum, realize the aiming of flashlight and catch;
After aiming and catching, essence is taken aim at control system (6) control essence and is taken aim at mirror (3) deflection, makes incident light in the imaging of the center of ccd detector (5), and system gets into tracing process: the focal length with taking aim at control system (6) control zoom eyepiece (2) is f
c/ β, and the focus of zoom eyepiece (2) is overlapped with the focus of telephotolens (1), realize tracking to incident light, and then the incident angle of picked up signal light;
Flashlight is at the incident angle β of pitch orientation, and β is the real number greater than 1.
3. the flashlight incident angle detection method of the change ken high-precision signal angle of light degree detection system based on the zoom eyepiece according to claim 2, the incident angle that it is characterized in that flashlight comprise that flashlight is at the incident angle of azimuth direction with to the incident angle of flashlight in pitch orientation: flashlight at the incident angle α of azimuth direction is:
Flashlight at the incident angle β of pitch orientation is:
In the formula: (X0 Y0) is position coordinates on the ccd detector when the flashlight incident angle is 0 ° (5); (X1 Y1) is the position coordinates of current demand signal light on ccd detector (5); F is the total focal length of system.
4. the flashlight incident angle detection method of the change ken high-precision signal angle of light degree detection system based on the zoom eyepiece according to claim 2 is characterized in that the detection ken θ 1 of ccd detector (5) under aiming and acquisition procedure is:
In the formula: m is a square CCD detector pixel line number, and d is the length of side of square pixel, f
wBe the focal length of telephotolens (1), f
lIt is the focal length of imaging lens group (4).
5. the flashlight incident angle detection method of the change ken high-precision signal angle of light degree detection system based on the zoom eyepiece according to claim 4 is characterized in that the detection accuracy Δ θ of ccd detector (5) incident angle of incident parallel beam under aiming and acquisition procedure
1For:
6. the flashlight incident angle detection method of the change ken high-precision signal angle of light degree detection system based on the zoom eyepiece according to claim 4 is characterized in that the detection ken θ of ccd detector (5) under tracing process
2For:
7. the flashlight incident angle detection method of the change ken high-precision signal angle of light degree detection system based on the zoom eyepiece according to claim 4 is characterized in that the detection accuracy Δ θ of the incident angle of the incident parallel beam of ccd detector (5) under tracing process
2For:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106111739A CN102095404B (en) | 2010-12-29 | 2010-12-29 | Zoom ocular based high-precision signal light incident angle detection system with variable viewshed and signal light incident angle detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106111739A CN102095404B (en) | 2010-12-29 | 2010-12-29 | Zoom ocular based high-precision signal light incident angle detection system with variable viewshed and signal light incident angle detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102095404A CN102095404A (en) | 2011-06-15 |
| CN102095404B true CN102095404B (en) | 2012-07-11 |
Family
ID=44128593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106111739A Expired - Fee Related CN102095404B (en) | 2010-12-29 | 2010-12-29 | Zoom ocular based high-precision signal light incident angle detection system with variable viewshed and signal light incident angle detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102095404B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004037384A (en) * | 2002-07-05 | 2004-02-05 | Olympus Corp | Deflection angle detection device |
| CN2760866Y (en) * | 2004-11-16 | 2006-02-22 | 深圳市世纪人无线通讯设备有限公司 | Transmitted antenna and free space optical communication system using the same |
| CN1316282C (en) * | 2005-05-31 | 2007-05-16 | 哈尔滨工业大学 | Transmit-receive off-axis optical communication track sight of satellite |
-
2010
- 2010-12-29 CN CN2010106111739A patent/CN102095404B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102095404A (en) | 2011-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106767543B (en) | A kind of hot spot alignment methods based on 4 quadrant detector | |
| US9906737B2 (en) | Co-aperture multi-FOV image-spectrum cooperative detection system and method | |
| CN106371102B (en) | Inverse synthetic aperture laser radar signal receiving system based on adaptive optics | |
| CN101776516B (en) | Position detector-based dividing plane-sharing multispectral target | |
| CN105259648A (en) | Large-caliber fully-spherical laser radar optical system | |
| CN104360464B (en) | Continuous zooming optical system | |
| CN105278087B (en) | A kind of three visual field infrared optical systems and Optical devices | |
| CN103246065B (en) | Device for remotely and accurately focusing laser beam | |
| CN102095403B (en) | View field-variable high precision signal light incident angle detection system based on variable-focus imaging lens set and signal light incident angle detection method | |
| CN206804983U (en) | A kind of continuous zooming optical camera lens | |
| CN109387164B (en) | Portable long-focus large-caliber device and method for measuring product optical axis deviation | |
| CN104198056A (en) | Schack hartmann wavefront sensor for low contrast expansion source telescope | |
| CN102818543A (en) | Target free multi-optical axis parallelism detection system based on digital image | |
| CN106353880A (en) | Laser semi-active detection zooming type optical receiving system | |
| CN107271986A (en) | A kind of staring imaging receiving optics for MEMS micromirror laser radar | |
| CN112098343A (en) | Novel self-focusing integrated hyperspectral imaging detection system based on ETL | |
| CN103777350A (en) | Coaxial three-mirror zooming optical system based on photoisomerization materials | |
| CN104501972A (en) | Composite shack-Hartmann wavefront sensor | |
| CN109343026B (en) | Optical system of laser television all-in-one machine based on binary surface | |
| CN105352603B (en) | Polarization imaging system and method for simultaneous detection of full polarization state of aperture-dividing confocal plane | |
| CN203275776U (en) | Device for realizing laser beam long distance precise focusing | |
| CN102095404B (en) | Zoom ocular based high-precision signal light incident angle detection system with variable viewshed and signal light incident angle detection method | |
| CN104393932A (en) | Real-time correction method for optical axis of telescope of quantum communication ground station | |
| CN210270354U (en) | Wide-spectrum large-relative-aperture medium-long wave infrared imaging optical system | |
| CN106773001B (en) | Tip-tilt correction system and method suitable for astronomical telescope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |