CN107765261A - All band three-dimensional EO-1 hyperion laser radar - Google Patents
All band three-dimensional EO-1 hyperion laser radar Download PDFInfo
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- CN107765261A CN107765261A CN201711103375.0A CN201711103375A CN107765261A CN 107765261 A CN107765261 A CN 107765261A CN 201711103375 A CN201711103375 A CN 201711103375A CN 107765261 A CN107765261 A CN 107765261A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The present invention relates to a kind of all band three-dimensional EO-1 hyperion laser radar, including two lasers, semiconductor laser, pulse laser；Two lasers by optics close beam after through spectral module to object scan, wherein pulse laser send for super continuous spectrums laser, the light that semiconductor laser is sent is ranging light source；The light that object is reflected back reflexes to the spectrographic detection module for detecting light spectrum by spectral module；It is the detector array that multiple detectors are formed in spectrographic detection module, including high speed detecting module, high speed detecting module is at least one detector corresponding with semiconductor laser wavelength.The achievable all band spectrographic detection of the present invention, while there is distance measurement function, there is the characteristics of fast speed of detection, high sensitivity.
Description
Technical field
The invention belongs to spectrum analysis field, is related to a kind of all band three-dimensional EO-1 hyperion laser radar.
Background technology
Laser radar system is by object emission laser signal, receiving the laser signal being reflected back by object, and to light
Signal is analyzed.The relevant nature of object can be obtained after analysis, such as distance, orientation etc..Laser radar system can choose inhomogeneity
The LASER Light Source of type, to realize difference in functionality.The LASER Light Source that super continuous spectrums laser radar system is taken has good side
Tropism and abundant spectral component, it is a kind of good all band spectrographic detection light source.
Analysis to the spectrum of object reflection can obtain the information of material.Spectrometer is based on optical principle, to being incident to light
Light in spectrometer carries out dispersion, detects the light intensity of different wavelengths of light, obtains the spectral information of material, its mainly by entrance slit,
Collimating element, dispersion element, concentrating element and the part of detector array five composition.The light sent from entrance slit passes through collimation
After element becomes directional light, incoming dispersive element.Because the dispersion angle of different wavelengths of light is different, incident light passes through dispersion element
Afterwards, the separation of different wavelengths of light is realized.Concentrating element focuses on the light of Same Wavelength the same point of detector array.Detector
Array can obtain the spectrum of material by detecting the light intensity of difference.
The content of the invention
1st, goal of the invention.
The present invention proposes all band three-dimensional EO-1 hyperion laser thunder, all band spectrographic detection can be achieved, while have ranging
Function, there is the characteristics of fast speed of detection, high sensitivity.
2nd, the technical solution adopted in the present invention.
All band three-dimensional EO-1 hyperion laser radar proposed by the present invention, including two lasers, semiconductor laser, pulse
Laser；
Two lasers scan after optics closes beam through spectral module to object, and what wherein pulse laser was sent is
Super continuous spectrums laser, semiconductor laser ranging；
The light that object is reflected back reflexes to the spectrographic detection module for detecting light spectrum by spectral module；
It is the detector array that multiple detectors are formed in spectrographic detection module, including high speed detecting module, high speed
Detecting module is at least one detector corresponding with semiconductor laser wavelength.
In further embodiment, described semiconductor laser sends the adjustable laser beam of intensity, and pulse swashs
The light for the 400nm-1700nm that light device is sent.
In further embodiment, described spectrographic detection module includes Jiao positioned at the first concave mirror 3
Slit at plane；
First concave mirror reflected light path sets grating,
Grating is incident to the second concave mirror after the light of each wavelength is realized into separation；
Detector array is located at the focal plane of the second concave mirror, receives the different wave length that concave mirror is converged
Light.
In further embodiment, detector array uses multiple photodetectors, its high speed detecting module
Spot detector wavelength it is corresponding with the wavelength that semiconductor laser is sent.
In further embodiment, detector array detects partly leading for super continuous reflection spectrum and reflection simultaneously
Body laser optical signal.
3rd, technique effect caused by the present invention.
(1) present invention selects the laser radar system of super continuous spectrums, using the good directionality of super continuous spectrums laser and
Abundant spectral component is realized realizes all band spectrographic detection to all band spectrographic detection.
(2) laser radar system of the invention based on super continuous spectrums, adds range laser, and two beam laser share same set of system
System, realize the three-dimensional detection of object.
(3) fiber array chosen of the present invention and fiber-optical probe array are used as detector array, have speed of detection soon,
The characteristics of high sensitivity.
Brief description of the drawings
Fig. 1 is all band three-dimensional EO-1 hyperion laser radar system figure of the present invention.
Fig. 2 is the system diagram of spectrographic detection module of the present invention.
Fig. 3 is the partial schematic diagram of fiber array in spectrographic detection module of the present invention.
Fig. 4 is the partial schematic diagram that spectroscopic fibers array of the present invention connects detector mode.
Description of reference numerals：
1- slits, 2- gratings, the concave mirrors of 3- first, the concave mirrors of 4- second, 5 detector arrays, 6- casings, 7-
Fiber array, 8- detector groups.
Embodiment
Embodiment 1
1 couple of present invention is further described below in conjunction with the accompanying drawings：
Closed as shown in figure 1, all band three-dimensional EO-1 hyperion laser radar includes semiconductor laser, pulse laser, optics
Beam module, spectral module, spectrographic detection module, high speed detecting module, laser scanning module.
Semiconductor laser sends the adjustable laser beam of intensity and passed through with the 400nm-1700nm light beams that pulse laser is sent
Optics closes beam module and realizes that beam is closed in space.Combined beam light enters laser scanning module by spectral module.Laser scanning module is by light
Beam exposes to object and it is scanned, and receives the light that object is reflected back and be transmitted to spectral module, anti-by spectral module
Spectrographic detection module and high speed detecting module are incident upon, the light that spectrographic detection module is reflected object tests and analyzes, and visits at a high speed
Survey the semiconductor laser light intensity signal of module detection reflection.There is detector array in spectrographic detection module.High speed detecting module,
Refer to single detector corresponding with semiconductor wavelength in spectrographic detection module, realize that high speed signal is examined using the detector
Survey.
As shown in Fig. 2 spectrographic detection module includes slit 1, grating 2, the first concave mirror 3, the second concave mirror
4th, detector array 5, casing 6.Detector array 5 is the combination of photodetector.
Slit 1 is placed in the focal plane of the first concave mirror 3, after light is incident to spectrometer through slit, through first
After concave mirror 3 reflects, its reflected light is directional light.The dispersion angle of different wavelengths of light is different, by grating 2, each wavelength
Light realizes separation.Detector array is in the focal plane of the second concave mirror 4, and the second concave mirror 4 is by different wave length
Light converge at the difference of detector array 5.Wherein, single spy corresponding with semiconductor laser wavelength in detector array
Device is surveyed, obtains the signal of semiconductor laser.
Embodiment 2
1 couple of present invention is further described below in conjunction with the accompanying drawings：
Closed as shown in figure 1, all band three-dimensional EO-1 hyperion laser radar includes semiconductor laser, pulse laser, optics
Beam module, spectral module, spectrographic detection module, high speed detecting module, laser scanning module.
Semiconductor laser sends the adjustable laser beam of intensity and passed through with the 400nm-1700nm light beams that pulse laser is sent
Optics closes beam module and realizes that beam is closed in space.Combined beam light enters laser scanning module by spectral module.Laser scanning module is by light
Beam exposes to object and it is scanned, and receives the light that object is reflected back and be transmitted to spectral module, anti-by spectral module
Spectrographic detection module and high speed detecting module are incident upon, the light that spectrographic detection module is reflected object tests and analyzes, and visits at a high speed
Survey the semiconductor laser light intensity signal of module detection reflection.There is detector array in spectrographic detection module.High speed detecting module,
Refer to single detector corresponding with semiconductor wavelength in spectrographic detection module, realize that high speed signal is examined using the detector
Survey.
As shown in Fig. 2 spectrographic detection module includes slit 1, grating 2, the first concave mirror 3, the second concave mirror
4th, detector array 5, casing 6, detector array 5 include fiber array 7 and fiber-optical probe array 8.
Slit 1 is placed in the focal plane of the first concave mirror 3, after light is incident to spectrometer through slit, through concave surface
After speculum A3 reflections, its reflected light is directional light.The dispersion angle of different wavelengths of light is different, and by grating 2, the light of each wavelength is real
Now separate.Detector array is in the focal plane of the second concave mirror 4, and the second concave mirror 4 is by the light of different wave length
Converge at the difference of detector array 5.The incidence end of detector array 5 is fiber array 7, and optical fiber is by specific wavelength optical transport
To fiber-optical probe array 8, a series of optical signalling of wavelength is obtained by fiber-optical probe array 8.Wherein, in fiber-optical probe
Single detector corresponding with semiconductor laser wavelength, obtain the signal of semiconductor laser.
Present invention sets forth a kind of all band three-dimensional EO-1 hyperion laser radar, the laser radar system based on super continuous spectrums,
Range laser is added, two beam laser share same set of system, are realized while all band spectrographic detection of object is realized to thing
The detection of body distance；In spectrographic detection module, detector array uses highly-sensitive detector, has speed of detection fast, clever
The characteristics of sensitivity is high.Wherein, single detector corresponding with semiconductor laser wavelength in detector array, obtain semiconductor and swash
The signal of light.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
In the description of the invention, it is to be understood that the term of indicating position or position relationship is based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than instruction or imply signified equipment
Or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Claims (6)
1. all band three-dimensional EO-1 hyperion laser radar, it is characterised in that：Including two lasers, semiconductor laser, pulse swash
Light device；
Two lasers scan after optics closes beam through spectral module to object, and what wherein pulse laser was sent connects to be super
Continuous spectrum laser, semiconductor laser ranging；
The light that object is reflected back reflexes to the spectrographic detection module for detecting light spectrum by spectral module；
It is the detector array that multiple detectors are formed in spectrographic detection module, including high speed detecting module, detects at a high speed
Module is at least one detector corresponding with semiconductor laser wavelength.
2. all band three-dimensional EO-1 hyperion laser radar according to claim 1, it is characterised in that：Described semiconductor laser
Device sends the adjustable laser beam of intensity.
3. all band three-dimensional EO-1 hyperion laser radar according to claim 1, it is characterised in that：Described pulse laser
The 400nm-1700nm sent light.
4. all band three-dimensional EO-1 hyperion laser radar according to claim 1, it is characterised in that：Described spectrographic detection mould
Block includes the slit of the focal plane positioned at the first concave mirror；
First concave mirror reflected light path sets grating,
Grating is incident to the second concave mirror after the light of each wavelength is realized into separation；
Detector array is located at the focal plane of the second concave mirror 4, receives the different wave length that concave mirror is converged
Light.
5. according to all band three-dimensional EO-1 hyperion laser radar described in claim 1, it is characterised in that：Detector array uses
Multiple photodetectors.
6. according to the spectrographic detection module of all band three-dimensional EO-1 hyperion laser radar described in claim 5, it is characterised in that：
Detector array detects super continuous reflection spectrum and the semiconductor laser optical signal of reflection simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711103375.0A CN107765261A (en) | 2017-11-10 | 2017-11-10 | All band three-dimensional EO-1 hyperion laser radar |
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| CN201711103375.0A CN107765261A (en) | 2017-11-10 | 2017-11-10 | All band three-dimensional EO-1 hyperion laser radar |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594385A (en) * | 2018-06-08 | 2018-09-28 | 上海禾赛光电科技有限公司 | A kind of optic fibre fixing device for laser radar |
| CN113267777A (en) * | 2020-02-17 | 2021-08-17 | 上海禾赛科技有限公司 | Laser radar |
| CN118549907A (en) * | 2024-07-24 | 2024-08-27 | 中国科学院长春光学精密机械与物理研究所 | Single photon detector for hyperspectral laser radar and calibration method thereof |
| CN118549907B (en) * | 2024-07-24 | 2024-09-24 | 中国科学院长春光学精密机械与物理研究所 | Single photon detector for hyperspectral laser radar and calibration method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594385A (en) * | 2018-06-08 | 2018-09-28 | 上海禾赛光电科技有限公司 | A kind of optic fibre fixing device for laser radar |
| CN108594385B (en) * | 2018-06-08 | 2024-06-11 | 上海禾赛科技有限公司 | Optical fiber fixing device for laser radar |
| CN113267777A (en) * | 2020-02-17 | 2021-08-17 | 上海禾赛科技有限公司 | Laser radar |
| CN118549907A (en) * | 2024-07-24 | 2024-08-27 | 中国科学院长春光学精密机械与物理研究所 | Single photon detector for hyperspectral laser radar and calibration method thereof |
| CN118549907B (en) * | 2024-07-24 | 2024-09-24 | 中国科学院长春光学精密机械与物理研究所 | Single photon detector for hyperspectral laser radar and calibration method thereof |
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