CN205808910U - Two waveband active polarization target identification system for sea fog environmental observation - Google Patents
Two waveband active polarization target identification system for sea fog environmental observation Download PDFInfo
- Publication number
- CN205808910U CN205808910U CN201620713432.1U CN201620713432U CN205808910U CN 205808910 U CN205808910 U CN 205808910U CN 201620713432 U CN201620713432 U CN 201620713432U CN 205808910 U CN205808910 U CN 205808910U
- Authority
- CN
- China
- Prior art keywords
- polarization
- ccd camera
- waveband
- beam splitting
- light path
- 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
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
This utility model relates to a kind of two waveband active polarization target identification system for sea fog environmental observation, belonging to optical information processing technique field, including light source, the first beam splitting system, active polarization emission system, collimating and beam expanding system, the second beam splitting system, two waveband Polarization Detection system, joint transform power spectrum produces system, relevant peaks produces system, receive system I, reception system II and computer disposal and control system；Use the detection principle of classical joint Transform Correlator, in conjunction with polarization and infrared technique advantage in target acquisition, existing passive detection mode is converted into active polarization detection, thus improves detection rate.In emission system, use the mode of light splitting, complete active probe and target recognition only with a light source, in reception system, using Spin Control turntable, simplified system light path, on the premise of ensureing target identification quality, used by system, device is minimum, easy and simple to handle, it is easy to accomplish.
Description
Technical field
This utility model belongs to optical information processing technique field, particularly to the two waveband master for sea fog environmental observation
Dynamic polarization target identification system.
Background technology
Dense sea fog is the modal a kind of natural phenomenas in China southeastern coastal areas, and among 1 year, the most of the time is by sea fog
Shroud.When sea fog is formed, owing to cooling or humidification make air reach water droplet that is saturated or that formed or ice crystal close to saturation
Suspending in atmosphere, the light making object send is absorbed, scattered or is reflected, fuzzy object thing and its background, causes and can see
The phenomenons such as degree reduction.Dense sea fog severe jamming satellite remote sensing, radio communication, and typically seen light, the target such as infrared can be caused to know
Other equipment is the most malfunctioning so that use traditional optical coherence interferometry method to be limited in this marine site.
Polarization is as independent of light intensity (amplitude) and the another inherent character of the light of wavelength (spectrum, color), distinguishable
From the different polarization difference of the light that object scatter goes out, there is information carrier effect, contain other optical characteristics institute substantial amounts of not
The information having.Under the specific transmission environment such as cigarette, mist, detection range is farther, has and wears cigarette Penetrating Fog, tells truth from falsehood, highlights target
Ability, make up the defect in the presence of tradition photoptometry observation, and combine the feature that near-infrared penetration capacity is good, can realize double
Wave band Polarization Detection.But the target for far-reaching marine site carries out detection identification, affects at sea fog weather, and target visual inspection is subject to
Under the factor of limit, make the limitation monitoring detection by energy only with this passive detection mode, have a strong impact on follow-up
Recognition result.And in outfield detection identifies, it is contemplated that system identifies on the premise of quality ensureing, have device used few,
Light path connects simple, the feature of small light.
Therefore, prior art is needed a kind of novel technical scheme badly solve this problem.
Utility model content
Technical problem to be solved in the utility model: in order to supplement existing to deep-sea sea conditions monitor detection lack
Falling into, provide favourable foundation for sea target recognition and ensure, this utility model provides a kind of double wave for sea fog environmental observation
Section active polarization target identification system, uses the detection principle of classical joint Transform Correlator, visits with infrared technique in conjunction with polarization
The advantage surveyed, is converted into existing passive detection mode active polarization detection, thus improves detection rate.
A kind of two waveband active polarization target identification system for sea fog environmental observation, is characterized in that: include light source,
One beam splitting system, active polarization emission system, collimating and beam expanding system, the second beam splitting system, two waveband Polarization Detection system, associating
Transform power spectrum generation system, relevant peaks produce system, receive system I, reception system II and computer disposal and control system；
Described light source is the continuous laser source of visible light wave range；
Described first beam splitting system is positioned on the emitting light path of light source, and the first beam splitting system is half-reflecting half mirror, its transmission
Energy is 1:1 with the ratio of reflected energy；
Described active polarization emission system is positioned on the transmitted light path of the first beam splitting system, and active polarization emission system includes
The polarization being sequentially arranged along light path is polarized assembly, optical filter and optics telephotolens, and polarization is polarized assembly, optical filter and optics
Telephotolens is on same optical axis；
Described collimating and beam expanding system is positioned on the reflected light path of the first beam splitting system, and collimating and beam expanding system includes micro-thing
Mirror, pin hole and collimator objective, wherein the back focal plane of microcobjective overlaps with the front focal plane of collimator objective, and pin hole is arranged on coincidence
On focal plane；
Described second beam splitting system is placed on the emitting light path of collimating and beam expanding system, and the second beam splitting system is half-reflection and half-transmission
Mirror, its transmission potential is 1:1 with the ratio of reflected energy；
Described two waveband Polarization Detection system includes telephotolens, half-reflecting half mirror, visible ray polarization components and near-infrared
Polarization components, wherein visible ray polarization components is placed on the reflected light path of half-reflecting half mirror, it is seen that light polarization assembly is by visible ray
Polaroid and LC variable phase delay device I form, and near infrared polarization assembly is placed on the transmitted light path of half-reflecting half mirror, the reddest
Outer polarization components is made up of near infrared polarization sheet and LC variable phase delay device II；
Described joint transform power spectrum generation system and reception system I are successively set on the transmission direction of the second beam splitting system
On, wherein joint transform power spectrum produce system include Electrically addressed liquid crystal I and Fourier transform lens I, described reception system I by
CCD camera I and Spin Control turntable I form, and CCD camera I is placed on Spin Control turntable I；
Described relevant peaks produces system and reception system II is successively set on the reflection direction of the second beam splitting system, wherein
Relevant peaks produces system and is made up of Electrically addressed liquid crystal II and Fourier transform lens II, and described reception system II is by CCD camera II
Form with Spin Control turntable II, and CCD camera II is placed on Spin Control turntable II；
Described computer disposal is made up of computer processing system and rotating platform control system with control system, its Computer
Processing system one end is connected with CCD camera II, CCD camera I respectively by data wire, the other end respectively with Electrically addressed liquid crystal I and
Electrically addressed liquid crystal II is connected, and rotating platform control system is connected with Spin Control turntable I and Spin Control turntable II respectively.
Described CCD camera I is visible ray Near Infrared CCD camera.
Described CCD camera II is Visible Light CCD Camera.
When receiving joint transform power spectral information, described CCD camera I is placed on the back focal plane of Fourier transform lens I.
When receiving relevant peaks information, described CCD camera II is placed on the back focal plane of Fourier transform lens II.
When receiving near-infrared with visible ray polarization information, described CCD camera I and CCD camera II are individually positioned in near-infrared
On the emitting light path of polarization components and on the emitting light path of visible ray polarization components.
By above-mentioned design, this utility model can bring following beneficial effect: this utility model provides one to use
In the two waveband active polarization target identification system of sea fog environmental observation, use the detection principle of classical joint Transform Correlator,
In conjunction with polarization and the advantage of infrared acquisition, existing passive detection mode is converted into active polarization detection, thus improves target and visit
Survey probability.And consider to simplify under external field environment the demand of experiment apparatus as far as possible, in emission system, use the mode of light splitting,
Complete active probe and target recognition only with a light source, in reception system, use Spin Control turntable, make system needs
4 detectors wanted are reduced to 2, simplified system light path, are ensureing on the premise of target identification quality, and device used by system is
Few, easy and simple to handle, it is easy to accomplish, make Application Optics Classical correlation technology that the identification of target under sea fog environment to be possibly realized.
Accompanying drawing explanation
Illustrate that the utility model is described in further detail with detailed description of the invention below in conjunction with accompanying drawing:
Fig. 1 this utility model is for the structural representation of the two waveband active polarization target identification system of sea fog environmental observation
Figure.
In figure: 1-light source, 2-the first beam splitting system, 3-active polarization emission system, 31-polarization is polarized assembly, 32-filters
Sheet, 33-optics telephotolens, 4-collimating and beam expanding system, 41-microcobjective, 42-pin hole, 43-collimator objective, 5-the second light splitting
System, 6-two waveband Polarization Detection system, 61-telephotolens, 62-half-reflecting half mirror, 63-visible ray polarization components, 64-are the reddest
Outer polarization components, 7-joint transform power spectrum generation system, 71-Electrically addressed liquid crystal I, 72-Fourier transform lens I, 8-are correlated with
Peak produces system, 81-Electrically addressed liquid crystal II, 82-Fourier transform lens II, 9-reception system I, 91-CCD camera I, 92-rotation
Turn control turntable I, 10-receives system II, 101-CCD camera II, 102-Spin Control turntable II, 11-computer disposal and control
System processed, 111-computer processing system, 112-rotating platform control system.
Detailed description of the invention
A kind of two waveband active polarization target identification system for sea fog environmental observation, as it is shown in figure 1, include light source 1,
First beam splitting system 2, active polarization emission system 3, collimating and beam expanding system the 4, second beam splitting system 5, two waveband Polarization Detection system
System 6, joint transform power spectrum produce system 7, relevant peaks generation system 8, receive at system I 9, reception system II 10 and computer
Reason and control system 11；
Described light source 1 is continuous laser source, and place wave band is visible light wave range.
A described beam splitting system 2 and the second beam splitting system 5 are all half-reflecting half mirror, are 1:1's by light beam by energy
Mode is divided into transmission and reflection two bundles.
Described active polarization emission system 3 is polarized assembly 31, optical filter 32 and optics telephotolens 33 by polarization and forms, its
Middle polarization is polarized assembly 31 for visible light wave range polaroid, by rotate scalable different be polarized direction, optical filter 32 can revolve
Being diverted to adjust irradiating light beam energy, telephotolens 33 expands launching light beam, can irradiate target requirement choosing according to reality
Select and expand bore accordingly, for irradiating the target under sea fog background.
Described collimating and beam expanding system 4 is for producing the directional light of uniform collimator and extender, and collimating and beam expanding system 4 is by microcobjective
41, pin hole 42 and collimator objective 43 form, and wherein pin hole is positioned at the back focal plane of microcobjective and the front focal plane of collimator objective simultaneously
Place.
Described two waveband Polarization Detection system 6 is by telephotolens 61, half-reflecting half mirror 62, visible ray polarization components 63 and near
Infrared polarization assembly 64 forms, and wherein visible ray polarization components 63 is by visible ray polaroid and LC variable phase delay device group
Becoming, near infrared polarization assembly 64 is made up of near infrared polarization sheet and LC variable phase delay device, by controlling LC variable phase
Position delayer, acceptable different directions polarization information.
Described joint transform power spectrum produces system 7 and is made up of Electrically addressed liquid crystal I 71 and Fourier transform lens I 72, uses
In the target information of record is changed into spectrum information.
Described relevant peaks produces system 8 and is made up of Electrically addressed liquid crystal II 81 and Fourier transform lens II 82, for remembering
The spectrum information of record changes into relevant peaks information, carries out target recognition.
Described reception system I 9 is made up of CCD camera I 91 and Spin Control turntable I 92, receives system II 10 by CCD camera
II 101 and Spin Control turntable II 102 composition, wherein CCD camera I 91 and CCD camera II 101 are respectively placed in Spin Control turntable
I 92 and Spin Control turntable II 102 on, by Spin Control turntable I 92 and the rotation of Spin Control turntable II 102, respectively
Control CCD camera I 91 to receive from the near infrared polarization information in two waveband Polarization Detection system 6 or joint transform power spectrum letter
Breath and CCD camera II 101 receive from the visible ray information in two waveband Polarization Detection system 6 or relevant peaks information；Want
Asking when receiving joint transform power spectral information and relevant peaks information, two CCD camera are individually positioned in joint transform power spectrum
In generation system 7, the back focal plane of Fourier transform lens I 72 and relevant peaks produce in system 8 after Fourier transform lens II 82
On focal plane；When receiving near-infrared with visible ray polarization information, two CCD camera are individually positioned in two waveband Polarization Detection system
On the near infrared polarization assembly 64 of 6 and the emitting light path of visible ray polarization components 63, wherein receive near infrared polarization assembly 64
The CCD camera I 91 of information and joint transform power spectral information is visible ray Near Infrared CCD camera, receives visible ray polarization components
The information of 63 and the CCD camera II 101 of relevant peaks information are Visible Light CCD Camera.
Described computer disposal is made up of computer processing system 111 and rotating platform control system 112 with control system 11, its
Computer processing system 111 one end is connected with CCD camera I 91, CCD camera II 101 respectively by data wire, and the other end is respectively
Produce the Electrically addressed liquid crystal I 71 in system 7 with joint transform power spectrum and relevant peaks produces the Electrically addressed liquid crystal II 81 in system 8
It is connected；Rotating platform control system 112 and the Spin Control turntable I 92 in two reception systems and Spin Control turntable II 102 phase
Connect.
Implement step:
Step one, regulated the Spin Control turntable I received in system I 9 and reception system II 10 by rotating platform control system 112
92 and Spin Control turntable II 102 position, make CCD camera I 91 be placed on the location A received in system I 9 respectively, be directed at double wave
Near infrared polarization assembly 64 in section Polarization Detection system 6, CCD camera II 101 is placed on the location A of reception system II 10, right
Visible ray polarization components 63 in quasi-two waveband Polarization Detection system 6, makes the optics telephotolens in active polarization emission system 3
33 are directed at target to be identified, and regulation polarization is polarized the angle that is polarized of assembly 31, opens light source 1, carry out actively irradiating；
Telephotolens 61 in step 2, two waveband Polarization Detection system 6 receives target information, by half-reflecting half mirror 62 points
Being two bundles, regulation visible ray polarization components 63 is received visible ray information, regulating near-infrared polarization components 64 by CCD camera II 101
By CCD camera I 91 near infrared polarization information, it is input in computer processing system 111, carries out degree of polarization, the angle of polarization and polarization
The fusion of stokes parameter.
Step 3, again regulation rotating platform control system 112 make the Spin Control in reception system I 9 and reception system II 10
Turntable I 92 and Spin Control turntable II 102 are placed in the B location received in system I 9 and reception system II 10, and are in Fu respectively
In leaf transformation lens I 72 and Fourier transform lens II 82 back focal plane on；To be stored in advance in computer processing system 111
Recognition template and target polarization fusion image be together input to joint transform power spectrum and produce the Electrically addressed liquid crystal I 71 of system 7
In, Fourier transform lens I 72 carrying out Fourier transformation, the joint transform power spectrum obtained is detected by CCD camera I 91, defeated
Enter in computer processing system 111；
Step 4, the joint transform power spectrum that will be stored in computer processing system 111 are input to Electrically addressed liquid crystal II
In 81, Fourier transform lens II 82 carrying out inverse Fourier transform, the relevant peaks obtained is detected by CCD camera II 101, input
In computer processing system 111, carrying out target recognition by the brightness of reference point, target is with the information mated in template more
Many, then reference point is the brightest, and when target is identical with template, then reference point obtains high-high brightness.
In sum, this utility model provides a kind of two waveband active polarization target recognition system for sea fog environmental observation
System, uses the detection principle of classical joint Transform Correlator, in conjunction with polarization and infrared technique advantage in target acquisition, and will be existing
There is passive detection mode to be converted into active polarization detection, thus improve detection rate.
Claims (6)
1., for the two waveband active polarization target identification system of sea fog environmental observation, it is characterized in that: include light source (1),
First beam splitting system (2), active polarization emission system (3), collimating and beam expanding system (4), the second beam splitting system (5), two waveband are inclined
Detection system of shaking (6), joint transform power spectrum produce system (7), relevant peaks produces system (8), receive system I (9), receive system
System II (10) and computer disposal and control system (11)；
Described light source (1) is the continuous laser source of visible light wave range；
Described first beam splitting system (2) is positioned on the emitting light path of light source (1), and the first beam splitting system (2) is half-reflecting half mirror, its
Transmission potential is 1:1 with the ratio of reflected energy；
Described active polarization emission system (3) is positioned on the transmitted light path of the first beam splitting system (2), active polarization emission system
(3) include that the polarization being sequentially arranged along light path is polarized assembly (31), optical filter (32) and optics telephotolens (33), and polarize
Assembly (31), optical filter (32) and optics telephotolens (33) partially is on same optical axis；
Described collimating and beam expanding system (4) is positioned on the reflected light path of the first beam splitting system (2), and collimating and beam expanding system (4) includes showing
Speck mirror (41), pin hole (42) and collimator objective (43), wherein before the back focal plane of microcobjective (41) and collimator objective (43)
Focal plane overlaps, and pin hole (42) is arranged on coincidence focal plane；
Described second beam splitting system (5) is placed on the emitting light path of collimating and beam expanding system (4), and the second beam splitting system (5) is half
Anti-pellicle mirror, its transmission potential is 1:1 with the ratio of reflected energy；
Described two waveband Polarization Detection system (6) includes telephotolens (61), half-reflecting half mirror (62), visible ray polarization components
(63) and near infrared polarization assembly (64), wherein visible ray polarization components (63) is placed in the reflected light path of half-reflecting half mirror (62)
On, it is seen that light polarization assembly (63) is made up of visible ray polaroid and LC variable phase delay device I, near infrared polarization assembly
(64) being placed on the transmitted light path of half-reflecting half mirror (62), near infrared polarization assembly (64) is by near infrared polarization sheet and LC variable
Phase delay device II forms；
Described joint transform power spectrum produces system (7) and reception system I (9) is successively set on the saturating of the second beam splitting system (5)
Penetrating on direction, wherein joint transform power spectrum generation system (7) includes Electrically addressed liquid crystal I (71) and Fourier transform lens I
(72), described reception system I (9) is made up of CCD camera I (91) and Spin Control turntable I (92), and CCD camera I (91) is placed in
On Spin Control turntable I (92)；
Described relevant peaks generation system (8) and reception system II (10) are successively set on the reflection direction of the second beam splitting system (5)
On, wherein relevant peaks generation system (8) is made up of Electrically addressed liquid crystal II (81) and Fourier transform lens II (82), described reception
System II (10) is made up of CCD camera II (101) and Spin Control turntable II (102), and CCD camera II (101) is placed in rotation
Control on turntable II (102)；
Described computer disposal and control system (11) are made up of computer processing system (111) and rotating platform control system (112),
Wherein computer processing system (111) one end is connected, separately with CCD camera II (101), CCD camera I (91) respectively by data wire
One end is connected with Electrically addressed liquid crystal I (71) and Electrically addressed liquid crystal II (81) respectively, rotating platform control system (112) respectively with rotation
Control turntable I (92) and Spin Control turntable II (102) is connected.
Two waveband active polarization target identification system for sea fog environmental observation the most according to claim 1, its feature
It is: described CCD camera I (91) is visible ray Near Infrared CCD camera.
Two waveband active polarization target identification system for sea fog environmental observation the most according to claim 1, its feature
It is: described CCD camera II (101) is Visible Light CCD Camera.
Two waveband active polarization target identification system for sea fog environmental observation the most according to claim 1, its feature
It is: when receiving joint transform power spectral information, described CCD camera I (91) is placed on the back focal plane of Fourier transform lens I (72)
On.
Two waveband active polarization target identification system for sea fog environmental observation the most according to claim 1, its feature
It is: when receiving relevant peaks information, described CCD camera II (101) is placed on the back focal plane of Fourier transform lens II (82).
Two waveband active polarization target identification system for sea fog environmental observation the most according to claim 1, its feature
It is: when receiving near-infrared with visible ray polarization information, described CCD camera I (91) and CCD camera II (101) are individually positioned in closely
On the emitting light path of infrared polarization assembly (64) and on the emitting light path of visible ray polarization components (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620713432.1U CN205808910U (en) | 2016-07-04 | 2016-07-04 | Two waveband active polarization target identification system for sea fog environmental observation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620713432.1U CN205808910U (en) | 2016-07-04 | 2016-07-04 | Two waveband active polarization target identification system for sea fog environmental observation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205808910U true CN205808910U (en) | 2016-12-14 |
Family
ID=58140740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620713432.1U Expired - Fee Related CN205808910U (en) | 2016-07-04 | 2016-07-04 | Two waveband active polarization target identification system for sea fog environmental observation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205808910U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758568A (en) * | 2021-08-26 | 2021-12-07 | 长春理工大学 | Simulation device for sea fog polarization transmission and test method thereof |
-
2016
- 2016-07-04 CN CN201620713432.1U patent/CN205808910U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758568A (en) * | 2021-08-26 | 2021-12-07 | 长春理工大学 | Simulation device for sea fog polarization transmission and test method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106018290B (en) | For the two waveband active polarization target identification system of sea fog environmental observation | |
| US7580127B1 (en) | Polarization lidar for the remote detection of aerosol particle shape | |
| CN102439393B (en) | Range imaging lidar | |
| CN102169048B (en) | Atmospheric turbulence detection simulator used for self-adaptive optical system | |
| CN104596645B (en) | Completely-polarized multi-angle scattering simulation and testing system for complex environment | |
| CN103278861A (en) | Underwater hyperspectral imaging system | |
| CN103592756B (en) | A kind of aperture light beam two-dimensional localization tracking and device altogether | |
| KR102135177B1 (en) | Method and apparatus for implemeting active imaging system | |
| CN101701847B (en) | Imaging system for wide dynamic range based on optical grating and CCD imaging detector | |
| CN102422179A (en) | Atmospheric measurement system | |
| CN107976686B (en) | Multi-field angle ocean laser radar and field angle preference method thereof | |
| CN107422321B (en) | Microwave staring associated imaging ground observation method | |
| CN107870335A (en) | The three-dimensional composite imaging method of EO-1 hyperion laser, system and nobody from the device that navigates | |
| CN205808910U (en) | Two waveband active polarization target identification system for sea fog environmental observation | |
| CN107607195B (en) | A kind of beam quality measurement method obtained in real time based on complex amplitude | |
| CN107656288B (en) | Novel shearing light beam imaging system and target image acquisition method | |
| Binshi et al. | Quality characteristics and nondestructive test and evaluation technology for laser additive manufacturing alloy steel components (invited) | |
| CN111047686A (en) | Real-time imaging simulation system for unmanned photoelectric equipment | |
| CN111369627B (en) | Non-invasive speckle directional imaging method | |
| CN106525239B (en) | Raster pattern imaging spectrometer spatial spectral radiance responsiveness robot scaling equipment and method | |
| CN107978209B (en) | Remote Fourier telescope imaging demonstration system | |
| Pajusalu et al. | Characterization of asteroids using nanospacecraft flybys and simultaneous localization and mapping | |
| CN203444122U (en) | Underwater hyperspectral imaging system | |
| CN116453277A (en) | Perimeter security intrusion event full coverage accurate detection method and system | |
| CN108415029A (en) | Target speed detection system and detection method based on laser active interference |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20180704 |