CN106352978B - A kind of laser light source and imaging spectrometer onboard process method - Google Patents
A kind of laser light source and imaging spectrometer onboard process method Download PDFInfo
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- CN106352978B CN106352978B CN201610625323.9A CN201610625323A CN106352978B CN 106352978 B CN106352978 B CN 106352978B CN 201610625323 A CN201610625323 A CN 201610625323A CN 106352978 B CN106352978 B CN 106352978B
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2823—Imaging spectrometer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
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- 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
- G02B27/0916—Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers
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- 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
- G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J2003/2866—Markers; Calibrating of scan
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
This application discloses a kind of laser light source and imaging spectrometer onboard process methods, wherein laser light source includes：Laser, optical fiber, collimation lens set, the first speculum, motor, integrating sphere, colimated light system, the second speculum and diffusing reflection plate；Laser light source can provide the laser after collimating for space low temperature radiometer and transmission radiometer, to realize the calibration for utilizing space low temperature radiometer to transmitting radiometer；In addition laser light source can also provide the monochromatic area source of spoke brightness uniformity to transmit radiometer and imaging spectrometer, and the onboard process for transmitting radiometer to imaging spectrometer is utilized to realize.Due to not including ultraviolet component in laser light source, therefore the chemical constituent of diffusing reflection plate surface will not be decomposed, to avoid the variation due to diffusing reflection plate bidirectional reflectanD and the case where onboard process to imaging spectrometer brings error occurs, further, monochromatic source wavelength scaling precision is high, improves the calibration precision of imaging spectrometer.
Description
Technical field
This application involves imaging spectrometer onboard process technical fields, more specifically to a kind of laser light source and at
As spectrometer onboard process method.
Background technology
With the development of scientific research, especially in national economy field, Crop Estimation, mineral prospecting, resource investigation,
The research of the problems such as environmental monitoring needs high-precision high-spectrum remote sensing data.High-spectrum remote-sensing (Hyper spectral
Remote Sensing), full name is high spectral resolution remote sensing, refer to very narrow and continuous spectrum channel holds ground object
The technology of continuous remotely sensed image, wherein most important image device is imaging spectrometer, therefore the onboard process essence of imaging spectrometer
Degree largely effects on the imaging effect of high-spectrum remote-sensing.
The onboard process of the imaging spectrometer is mainly utilized sunlight as in the prior art and is radiated at diffusing reflection plate
On light source, by transmit radiometer and imaging spectrometer observe simultaneously the diffusing reflection plate in the way of realize calibration.
But the ultraviolet component in sunlight can gradually decompose the chemical constituent of the diffusing reflection plate surface, cause diffusing reflection
The variation of plate bidirectional reflectanD, and this variation is difficult to carry out quantitative detection in space, and since sunlight is secondary color
Light, when being calibrated using sunlight as light source the imaging spectrometer, the calibration precision of centre wavelength and bandwidth is difficult to
It improves.These can all give the onboard process of the imaging spectrometer to bring error.
Invention content
In order to solve the above technical problems, the present invention provides a kind of laser light source and imaging spectrometer onboard process method,
To solve due to the chemical constituent and bandwidth of the ultraviolet component decomposition diffusing reflection plate surface in sunlight and centre wavelength calibration
Error and the problem of cause the imaging spectrometer onboard process error.
In order to solve the above technical problems, an embodiment of the present invention provides following technical solutions：
A kind of laser light source is applied to imaging spectrometer onboard process, including：Laser, optical fiber, collimation lens set,
One speculum, motor, integrating sphere, colimated light system, the second speculum and diffusing reflection plate；Wherein,
The optical fiber is used to send the laser that the laser is sent to the collimation lens set；
The collimation lens set is used to carry out collimation processing to the laser, and by the laser after the collimation to described the
One speculum or integrating sphere are sent；
The motor is for driving first speculum to move；
First speculum is used for the laser total reflection after the collimation to space low temperature radiometer or transmits radiation
Meter；
There is diffusing reflection coating, for being to the collimation after the laser after receiving the collimation inside the integrating sphere
System sends exploring laser light；
The colimated light system is used to carry out collimation processing to the exploring laser light, and the collimation column for obtaining spoke brightness uniformity swashs
Light；
Second speculum is used to be totally reflected the collimation column laser of the spoke brightness uniformity, makes the spoke brightness uniformity
Collimation column laser vertical incidence described in diffusing reflection plate, obtain the monochromatic face light of the spoke brightness uniformity of diffusing reflection plate outgoing
Source.
Preferably, the laser includes laser diode group and laser power stability device；Wherein,
The laser diode group is for sending laser；
The laser power stability device is for keeping the operating power of the laser diode group to stablize.
Preferably, the colimated light system is off axis paraboloidal mirror.
Preferably, first speculum and the second mirror surface have total reflection film.
Preferably, the diffusing reflection plate surface has diffusing reflection coating.
A kind of imaging spectrometer onboard process method, including：
For space low temperature radiometer and the laser after radiometer provides collimation is transmitted using laser light source, and to the transmission
Radiometer is calibrated；
It is imaging spectrometer and the area source for transmitting radiometer and spoke brightness uniformity being provided using the laser light source；
The imaging spectrometer is calibrated using the transmission radiometer；
The laser light source is the laser light source described in any of the above-described embodiment.
Preferably, carrying out calibration to the imaging spectrometer using the transmission radiometer includes：
Using the multiple spectrum channels for transmitting calibration of radiometer imaging spectrometer, the multiple spectrum channel is obtained
Spectral responsivity.
It can be seen from the above technical proposal that an embodiment of the present invention provides on a kind of laser light source and imaging spectrometer star
Calibrating method, wherein after the laser light source can provide the collimation for the space low temperature radiometer with transmission radiometer
Laser, with realize using the space low temperature radiometer to it is described transmit radiometer calibration；In addition the laser light source is also
The monochromatic area source of spoke brightness uniformity can be provided for the transmission radiometer and imaging spectrometer, the transmission is utilized to realize
Onboard process of the radiometer to the imaging spectrometer.Due in the monochromatic area source of the spoke brightness uniformity do not include it is ultraviolet at
Point, therefore the chemical constituent of the diffusing reflection plate surface will not be decomposed, to avoid therefore caused by diffusing reflection plate two to anti-
Penetrate the variation of rate, so avoid the variation due to the diffusing reflection plate bidirectional reflectanD and to fixed on the star of the imaging spectrometer
Marker tape, which carrys out the case where error, to be occurred.
And since the monochromaticjty of the monochromatic area source of the spoke brightness uniformity is preferable, the transmission radiometer pair is being utilized
When being calibrated optical filter need not be arranged inside the transmission radiometer in the imaging spectrometer, solve spatial scaled wave
The problem of long offset and broadened bandwidth.Likewise, since the monochromaticjty of the monochromatic area source of the spoke brightness uniformity is preferable,
It need not be to the list of the spoke brightness uniformity in carrying out calibration process to the imaging spectrometer using the transmission radiometer
Color area source carries out the calibration of centre wavelength and bandwidth, to reduce the flow of the imaging spectrometer onboard process, reduces
The difficulty of the imaging spectrometer onboard process.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 (a) and Fig. 1 (b) is a kind of structural schematic diagram for laser light source that one embodiment of the application provides；
Fig. 2 (a) and Fig. 2 (b) is a kind of structural schematic diagram for laser light source that another embodiment of the application provides；
Fig. 3 is a kind of flow diagram for imaging spectrometer onboard process method that one embodiment of the application provides.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present application provides a kind of laser light source, is applied to imaging spectrometer onboard process, such as Fig. 1 (a) and Fig. 1
(b) shown in, including：Laser 10, optical fiber 90, collimation lens set 20, the first speculum 30, motor 40, integrating sphere 50, collimation system
The 60, second speculum 70 of system and diffusing reflection plate 80；Wherein,
The optical fiber 90 is used to send the laser that the laser 10 is sent to the collimation lens set 20；
The collimation lens set 20 is used to carry out collimation processing to the laser, and by the laser after the collimation to described
First speculum 30 or integrating sphere 50 are sent；
The motor 40 is for driving first speculum 30 to move；
First speculum 30 is used for the laser total reflection after the collimation to space low temperature radiometer A or transmits spoke
Penetrate meter B；
50 inside of the integrating sphere has diffusing reflection coating, is used for after the laser after receiving the collimation to the collimation
Exploring laser light occurs for system 60；
The colimated light system 60 is used to carry out collimation processing to the exploring laser light, obtains the collimation column of spoke brightness uniformity
Laser；
Second speculum 70 is used to be totally reflected the collimation column laser of the spoke brightness uniformity, keeps the spoke brightness equal
Diffusing reflection plate 80 described in even collimation column laser vertical incidence obtains the list for the spoke brightness uniformity that the diffusing reflection plate 80 is emitted
Color area source.
It should be noted that when being calibrated using the space low temperature radiometer A transmitting radiometer B, it is sharp first
First speculum 30 is controlled with the motor 40 to move, by the laser total reflection after the collimation to the space low temperature spoke
It penetrates in meter A, obtains the reading of the space low temperature radiometer A；Then first speculum 30 is controlled using the motor 40
It is mobile, by the laser total reflection after the collimation to the transmission radiometer B, utilize the space low temperature spoke obtained before
The reading for penetrating meter A calibrates the transmission radiometer B.In general, first speculum 30 is required to be totally reflected
Laser after the collimation, therefore the mode for generally on 30 surface of the first speculum attach total reflection film reaches and is all-trans
The purpose penetrated.It, can also be by being carried out at optics on 30 surface of the first speculum but in the other embodiment of the application
The mode of reason achievees the purpose that total reflection, the application do not limit this, specifically depending on actual conditions.
Due to what is used during being calibrated the transmission radiometer B using the space low temperature radiometer A
It is same speculum (the first speculum 30), reflection of first speculum 30 before and after being moved by the motor 40
The optical indexes such as rate will not change, therefore may be implemented to transmit the high-precision that radiometer B traces space low temperature radiometer A
Calibration.
After completing using the space low temperature radiometer A to the calibration process for transmitting radiometer B, by described first
Speculum 30 and the motor 40 are removed, while the setting integrating sphere 50, colimated light system 60, second as shown in Fig. 1 (b) reflect
Mirror 70, transmits radiometer B and imaging spectrometer C at diffusing reflection plate 80, so that the laser after the collimation can enter the integral
In ball 50.Since 50 inner surface of the integrating sphere has diffusing reflection coating, the laser after collimation is in the integrating sphere 50
Portion forms the exploring laser light with Lambertian characteristics, and the exploring laser light is in 51 He of the first aperture diaphragm by the integrating sphere 50
It is emitted after second aperture diaphragm 52, first aperture diaphragm, 51 and second aperture diaphragm 52 can play the limitation detection and swash
The purpose of the shooting angle (integrating sphere 50 exports normal ± 30 °) of light.The exploring laser light with good Lambertian characteristics is passing through
It is equally distributed collimated light beam (the collimation column laser of the spoke brightness uniformity) to cross outgoing after the colimated light system 60 collimates,
The collimation column laser of the spoke brightness uniformity overflows anti-described in the vertical incidence after the total reflection of second speculum 70
Plate 80 is penetrated, the light that the diffusing reflection plate 80 is emitted is referred to as the monochromatic light of spoke brightness uniformity, for being the transmission radiometer B
It calibrates imaging spectrometer C and light source is provided.
Likewise, in order to avoid the decaying of the light after second speculum 70 reflection, need to make described second anti-
Penetrating mirror 70 has the function of being totally reflected incident ray.In one embodiment of the application, by second speculum 70
Surface attaches total reflection film to realize the function of its total reflection；But in the other embodiment of the application, other can also be passed through
The mode of surface treatment realizes its total reflection function.The application does not limit this, specifically depending on actual conditions.
On the basis of the above embodiments, in the preferred embodiment of the application, as shown in Fig. 2 (a) and Fig. 2 (b),
The laser 10 includes laser diode group 11 and laser power stability device 12；Wherein,
The laser diode group 11 is for sending laser；
The laser power stability device 12 is for keeping the operating power of the laser diode group to stablize.
On the basis of the above embodiments, in one embodiment of the application, the colimated light system 60 is off-axis parabolic
Face mirror.But in the other embodiment of the application, the colimated light system 60 can also be the combination of optical mirror slip.The application is to institute
The specific composition for stating colimated light system 60 does not limit, specifically depending on actual conditions.
On the basis of the above embodiments, in another embodiment of the application, 80 surface of diffusing reflection plate has
Diffusing reflection coating.It, can also be by being surface-treated on 80 surface of diffusing reflection plate but in the other embodiment of the application
Mode makes it obtain diffusing reflection function, and the application does not limit this, specifically depending on actual conditions.
On the basis of the above embodiments, in another preferred embodiment of the application, such as Fig. 2 (a) and Fig. 2 (b) institutes
Show, the laser light source further includes：Detector 100 is monitored, for detecting the spoke brightness in the integrating sphere 50.
The monitoring detector 100 can give the spoke brightness feedback in the integrating sphere 50 of detection to the laser power
Stabilising arrangement 12, the spoke brightness pinched according to the integrating sphere 50 so as to the laser power stability device 12 is by two pole of the laser
The operating power of pipe group 11 is stablized in fixed value.
In conclusion the embodiment of the present application provides a kind of laser light source, the laser light source can be that the space is low
Warm radiometer and transmission radiometer B provide the laser after the collimation, to realize using the space low temperature radiometer A to described
Transmit the calibration of radiometer B；In addition the laser light source can also be that the transmission radiometer B and imaging spectrometer C provide institute
The monochromatic area source for stating spoke brightness uniformity, to realize using the transmission radiometer B to fixed on the star of the imaging spectrometer C
Mark.Due to not including ultraviolet component in the monochromatic area source of the spoke brightness uniformity, the diffusing reflection plate 80 will not be decomposed
The chemical constituent on surface, to avoid therefore caused by 80 bidirectional reflectanD of diffusing reflection plate variation, and then avoid by institute
State the variation of 80 bidirectional reflectanD of diffusing reflection plate and the onboard process to imaging spectrometer C the case where bringing error occurs.
And since the monochromaticjty of the monochromatic area source of the spoke brightness uniformity is preferable, the transmission radiometer B is being utilized
Need not optical filter be set inside the transmission radiometer B when calibrating the imaging spectrometer C, it is fixed to solve space
The problem of marking wavelength shift and broadened bandwidth.Likewise, since the monochromaticjty of the monochromatic area source of the spoke brightness uniformity is preferable,
It therefore need not be equal to the spoke brightness in carrying out calibration process to the imaging spectrometer C using the transmission radiometer B
Even monochromatic area source carries out the calibration of centre wavelength and bandwidth, to reduce the stream of the imaging spectrometer C onboard process
Journey reduces the difficulty of the imaging spectrometer C onboard process.
Further, the orientation of the colimated light system 60 in the laser light source and the diffusing reflection plate 80 is fixed, and is not needed
Complicated regulating device is arranged as in the prior art makes diffusing reflection plate 80 track solar azimuth, also therefore avoids due to one
The difference of year four seasons angle of incidence of sunlight and the case where reducing the imaging spectrometer C onboard process precision, occurs.Furthermore it is possible to
To the bidirectional reflectanD of the diffusing reflection plate 80 into rower by way of rotating the diffusing reflection plate 80 in the laser light source
It is fixed, with correct the diffusing reflection plate 80 it is long-term in orbit caused by self property variation, to avoid therefore bringing
The onboard process precision to the imaging spectrometer C influence.
Correspondingly, the embodiment of the present application also provides a kind of imaging spectrometer C onboard process methods, as shown in figure 3, packet
It includes：
S101：For space low temperature radiometer A and the laser after radiometer B provides collimation is transmitted using laser light source, and right
The transmission radiometer B is calibrated；
S102：The list of spoke brightness uniformity is provided using the laser light source for imaging spectrometer C and the transmission radiometer B
Color area source；
S103：The imaging spectrometer C is calibrated using the transmission radiometer B；
The laser light source is claim 1-5 any one of them laser light sources.
On the basis of the above embodiments, in the specific embodiment of the application, B pairs of the transmission radiometer is utilized
The imaging spectrometer C carries out calibration：
Using multiple spectrum channels of the transmission radiometer B calibration imaging spectrometers C, the multiple spectrum channel is obtained
Spectral responsivity.
It, can be with when carrying out onboard process to the imaging spectrometer C using the imaging spectrometer C onboard process method
Selection is carried out when the satellite where the imaging spectrometer C is in earth's shadow area, avoids earth reflection stray light to institute
State the influence of the precision of imaging spectrometer C onboard process.
In conclusion the embodiment of the present application provides a kind of laser light source and imaging spectrometer C onboard process methods,
In, the laser light source can provide the laser after the collimation for the space low temperature radiometer with transmission radiometer B, with reality
The now calibration using the space low temperature radiometer A to the transmission radiometer B；In addition the laser light source can also be described
The monochromatic area source that radiometer B and imaging spectrometer C provides the spoke brightness uniformity is transmitted, is radiated using the transmission with realizing
Count onboard process of the B to the imaging spectrometer C.Due in the monochromatic area source of the spoke brightness uniformity do not include it is ultraviolet at
Point, therefore the chemical constituent on 80 surface of diffusing reflection plate will not be decomposed, to avoid therefore caused by diffusing reflection plate 80 2
Variation to reflectivity, so avoid the variation due to 80 bidirectional reflectanD of diffusing reflection plate and to the imaging spectrometer C
Onboard process the case where bringing error occur.
And since the monochromaticjty of the monochromatic area source of the spoke brightness uniformity is preferable, the transmission radiometer B is being utilized
Need not optical filter be set inside the transmission radiometer B when calibrating the imaging spectrometer C, it is fixed to solve space
The problem of marking wavelength shift and broadened bandwidth.Likewise, since the monochromaticjty of the monochromatic area source of the spoke brightness uniformity is preferable,
It therefore need not be equal to the spoke brightness in carrying out calibration process to the imaging spectrometer C using the transmission radiometer B
Even monochromatic area source carries out the calibration of centre wavelength and bandwidth, to reduce the stream of the imaging spectrometer C onboard process
Journey reduces the difficulty of the imaging spectrometer C onboard process.
Further, the orientation of the colimated light system 60 in the laser light source and the diffusing reflection plate 80 is fixed, and is not needed
Complicated regulating device is arranged as in the prior art makes diffusing reflection plate 80 track solar azimuth, also therefore avoids due to one
The difference of year four seasons angle of incidence of sunlight and the case where reducing the imaging spectrometer C onboard process precision, occurs.Furthermore it is possible to
To the bidirectional reflectanD of the diffusing reflection plate 80 into rower by way of rotating the diffusing reflection plate 80 in the laser light source
It is fixed, with correct the diffusing reflection plate 80 it is long-term in orbit caused by self property variation, to avoid therefore bringing
The onboard process precision to the imaging spectrometer C influence.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (9)
1. a kind of laser light source, which is characterized in that it is applied to imaging spectrometer onboard process, including：Laser, optical fiber, collimation
Lens group, the first speculum, motor；Wherein,
The optical fiber is used to send the laser that the laser is sent to the collimation lens set；
The collimation lens set is used to carry out collimation processing to the laser, and the laser after the collimation is anti-to described first
Penetrate mirror transmission；
The motor is for driving first speculum to move；
First speculum is used for the laser total reflection after the collimation to space low temperature radiometer or transmits radiometer.
2. laser light source according to claim 1, which is characterized in that the laser includes laser diode group and laser
Power stability device；Wherein,
The laser diode group is for sending laser；
The laser power stability device is for keeping the operating power of the laser diode group to stablize.
3. laser light source according to claim 1, which is characterized in that the colimated light system is off axis paraboloidal mirror.
4. laser light source according to claim 1, which is characterized in that first mirror surface has total reflection film.
5. a kind of laser light source, which is characterized in that including：Applied to imaging spectrometer onboard process, including：Laser, optical fiber,
Integrating sphere, colimated light system, the second speculum and diffusing reflection plate；Wherein,
The optical fiber is used to send the laser that the laser is sent to the collimation lens set；
The collimation lens set is used to carry out collimation processing to the laser, and by the laser after the collimation to the integrating sphere
It sends；
There is diffusing reflection coating, for being sent out to the colimated light system after the laser after receiving the collimation inside the integrating sphere
Send exploring laser light；
The colimated light system is used to carry out collimation processing to the exploring laser light, obtains the collimation column laser of spoke brightness uniformity；
Second speculum is used to be totally reflected the collimation column laser of the spoke brightness uniformity, makes the standard of the spoke brightness uniformity
Diffusing reflection plate described in right cylinder shape laser vertical incidence obtains the monochromatic area source of the spoke brightness uniformity of the diffusing reflection plate outgoing.
6. laser light source according to claim 5, which is characterized in that the diffusing reflection plate surface has diffusing reflection coating.
7. laser light source according to claim 5, which is characterized in that second mirror surface has total reflection film.
8. a kind of imaging spectrometer onboard process method, which is characterized in that including：
Using laser light source according to any one of claims 1-4 collimation is provided for space low temperature radiometer and transmission radiometer
Laser afterwards, and the transmission radiometer is calibrated；
It is bright that for imaging spectrometer and the transmission radiometer spoke is provided using such as claim 5-7 any one of them laser light source
Spend uniform area source；
The imaging spectrometer is calibrated using the transmission radiometer.
9. imaging spectrometer onboard process method according to claim 8, which is characterized in that utilize the transmission radiometer
Carrying out calibration to the imaging spectrometer includes：
Using the multiple spectrum channels for transmitting calibration of radiometer imaging spectrometer, the spectrum of the multiple spectrum channel is obtained
Responsiveness.
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| CN107883982A (en) * | 2017-10-31 | 2018-04-06 | 北京航天计量测试技术研究所 | A kind of photogoniometer and method applied to star sensor calibration field |
| CN109813529A (en) * | 2017-11-21 | 2019-05-28 | 北京振兴计量测试研究所 | Optical parameter detection device for laser photoelectricity detection system |
| CN108871405B (en) * | 2018-04-12 | 2024-05-10 | 中国科学院西安光学精密机械研究所 | On-board visible light calibration device of space optical telescope |
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