CN104964742B - Light prompt radiation intensity calibration method, device and system - Google Patents
Light prompt radiation intensity calibration method, device and system Download PDFInfo
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- CN104964742B CN104964742B CN201510434933.6A CN201510434933A CN104964742B CN 104964742 B CN104964742 B CN 104964742B CN 201510434933 A CN201510434933 A CN 201510434933A CN 104964742 B CN104964742 B CN 104964742B
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Abstract
The present invention relates to atmospheric optics field, in particular to a kind of smooth prompt radiation intensity calibration method, device and system.This method includes：Obtain measurement moment solar distance modifying factor, relative atmospheric quality, and the magnitude of voltage of the light of setted wavelength that relative atmospheric quality is exported at least one surveying range by measuring instrument, maximum and minimum value difference up to 2 of the relative atmospheric quality in the surveying range；The relative atmospheric quality corresponding with the magnitude of voltage that measuring instrument is exported is done into conversion reciprocal；The magnitude of voltage of the light of the setted wavelength exported according to Beer Lambert laws, measuring instrument, the relative atmospheric quality after conversion reciprocal, measurement moment solar distance modifying factor are done, utilize least square regression algorithm to calculate the calibration voltage value in each surveying range.This method, which can be reduced, completes measurement in the measurement request of calibration, short time, reduce measurement error, improve the exploitativeness of measurement.
Description
Technical field
The present invention relates to atmospheric optics field, in particular to a kind of smooth prompt radiation intensity calibration method, device with
And system.
Background technology
At present, the research of the optical characteristics of whole atmosphere aerosol is in multiple subjects, for example climate change, laser communication,
In the research of laser whole atmosphere transmission, more and more important effect is played.In measurement whole atmosphere optical parametric, such as flood
When atmospheric transmittance and aerosol optical depth, usually using Lambert-Beer laws (light absorbs philosophy),
The law points out that the radiation intensity transmitted by matte media decays according to exponential function, and its independent variable is extinction coefficient to biography
The integration of defeated path distance, is measured during with inverting based on this law, it is necessary to the original spoke clearly decayed without matte media
Intensity is penetrated, the calculating of the parameters such as accurate atmospheric transmittance and aerosol optical depth could be carried out, that is, carry out prompt radiation
The calibration of intensity, provides the clear and definite calibration coefficient of prompt radiation intensity.
Common calibrating method mainly has three kinds, and Langley scaling methods, standard sources scaling method and reference instrument transmission are fixed
Mark method.In these three calibrating methods, Langley scaling methods are the measuring principle based on instrument, calibration precision highest, but the party
Method is more harsh to observation condition requirement, usually requires that the high and stable weather in selection high altitude localities, atmospheric environment cleannes
Condition, and the excursion for requiring air relative mass measures many class values, then basis between 1 to 7 using measuring instrument
Linear fit algorithm, obtains calibration value.This calibrating method typically lasting time of measuring is 6~7 hours, to ensure data
Fit range.But in fact, the above-mentioned measuring condition met required by calibrating method of one is extremely difficult to, the two is with landing
The rotation of ball is constantly changing in itself with revolution and air, and the time of measurement is more long, and the stability of air is also poorer, most
The error of the measurement result obtained eventually is also bigger.Therefore the exploitativeness for causing such a method to be calibrated is poor.
The content of the invention
In view of this, the purpose of the embodiment of the present invention be to provide a kind of smooth prompt radiation intensity calibration method, device with
And system, measurement request is reduced, measurement can be completed in a short time, the error of measurement is reduced, the exploitativeness of measurement is improved.
In a first aspect, the embodiments of the invention provide a kind of smooth prompt radiation intensity calibration method, this method includes：
Measurement moment solar distance modifying factor, relative atmospheric quality are obtained, and relative atmospheric quality is at least one
The magnitude of voltage of the light for the setted wavelength that surveying range is exported by measuring instrument, the magnitude of voltage of each surveying range has multiple；
Maximum and minimum value difference up to 2 of the relative atmospheric quality in the surveying range；
The relative atmospheric quality corresponding with the magnitude of voltage that measuring instrument is exported is done into conversion reciprocal；
The magnitude of voltage of the light of the setted wavelength exported according to Beer-Lambert laws, measuring instrument, do conversion reciprocal
Relative atmospheric quality, measurement moment solar distance modifying factor afterwards, are calculated in each measurement using least square regression algorithm
Calibration voltage value in interval.
It is described fixed with reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect
Mark magnitude of voltage V0Meet formula (4)：
Wherein：V(λ)：The magnitude of voltage of the setted wavelength λ exported by measuring instrument light；V0(λ)：Setted wavelength λ light
Calibration voltage value；R：Measure moment solar distance modifying factor；τ(λ)：The total optics in SEQUENCING VERTICAL direction is thick at setted wavelength λ
Degree；m(θ)：Relative atmospheric quality；θ：Observe moment solar zenith angle.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of second of first aspect, the survey
Amount moment solar distance modifying factor R meets formula (1)：
(1) R=(rm/r)2
Wherein：rm：Mean Earth-Sun distance；r：Actual solar distance during measurement.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the third of first aspect, when described
During surveying range at least two, the final calibration voltage value is obtained by each surveying range at least two surveying ranges
The average value of the calibration voltage value arrived.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 4th of first aspect kind, the phase
It is to the surveying range of air quality：One or more in 1~2,2~3,3~4 and 4~5；
In the surveying range of relative atmospheric quality, the magnitude of voltage that measuring instrument is provided at least 3.
Second aspect, the embodiment of the present invention also provides a kind of smooth prompt radiation intensity calibration device, and described device is arranged on
On optical radiation measurement instrument, including：
Data acquisition module, for obtaining measurement moment solar distance modifying factor, relative atmospheric quality, and it is relatively large
The magnitude of voltage of the light for the setted wavelength that makings amount is exported at least one surveying range by measuring instrument, each surveying range
Magnitude of voltage has multiple；Maximum and minimum value difference up to 2 of the relative atmospheric quality in the surveying range；
Data transformation module, for the relative atmospheric quality corresponding with the magnitude of voltage that measuring instrument is exported to be done into inverse
Conversion；
Scaling module, for the voltage of the light of setted wavelength exported according to Beer-Lambert laws, measuring instrument
It is worth, does the relative atmospheric quality after conversion reciprocal, measurement moment solar distance modifying factor, utilizes least square regression algorithm meter
Calculate the calibration voltage value in each surveying range.
It is described fixed the embodiments of the invention provide the possible embodiment of the first of second aspect with reference to second aspect
Mark magnitude of voltage V0Meet formula (4)：
Wherein：V(λ)：The magnitude of voltage of the setted wavelength λ exported by measuring instrument light；V0(λ)：Setted wavelength λ light
Calibration voltage value；R：Measure moment solar distance modifying factor；τ(λ)：The total optics in SEQUENCING VERTICAL direction is thick at setted wavelength λ
Degree；m(θ)：Relative atmospheric quality；θ：Observe moment solar zenith angle.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of second of second aspect, the survey
Amount moment solar distance modifying factor R meets formula (1)：
(1) R=(rm/r)2
Wherein：rm：Mean Earth-Sun distance；r：Actual solar distance during measurement.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the third of second aspect, when described
During surveying range at least two, the final calibration voltage value is obtained by each surveying range at least two surveying ranges
The average value of the calibration voltage value arrived.
The third aspect, the embodiment of the present invention also provides a kind of smooth prompt radiation intensity calibration system, applied at least including
The system of optical radiation measurement instrument, it is characterised in that also include：Light prompt radiation intensity calibration as described in above-mentioned embodiment
Device.
Light prompt radiation intensity calibration method provided herein, by obtaining measurement moment solar distance modifying factor
The setted wavelength that son, relative atmospheric quality and relative atmospheric quality are exported at least one surveying range by measuring instrument
The magnitude of voltage of light, and the relative atmospheric quality is in maximum and the minimum value difference up to 2 of the surveying range；Each
In surveying range, multiple magnitudes of voltage can be measured, this is the equal of to be measured in smaller relative atmospheric quality interval, and
The interval of relative atmospheric quality is much smaller than of the prior art 1~7, during measurement, and or so half an hour just can complete a survey
Measurement in amount interval, and within the time of or so half an hour, relative to 6~7 hours of air more stablize, and measurement
Time it is short, more preferably reach the environmental requirement of measurement.In addition will be corresponding with the magnitude of voltage that measuring instrument is exported relatively large
Makings amount does conversion reciprocal, is the equal of that measurement (density of increase measurement) is encrypted in the short period of time, ensure that
On the premise of fitting data amount, the calibration results can be finally provided, with more practicality.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows a kind of smooth prompt radiation intensity calibration method flow diagram that the embodiment of the present invention is provided；
Fig. 2 shows the structural representation for the light prompt radiation intensity calibration device that the embodiment of the present invention is provided；
Illustrate：
111- data acquisition modules；112- data transformation modules；113- scaling modules.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Generally exist
The component of the embodiment of the present invention described and illustrated in accompanying drawing can be arranged and designed with a variety of configurations herein.Cause
This, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
At present when being measured to whole atmosphere optical parametric, used Langley scaling methods are to observation bar
Part requirement is more harsh, and lasting time of measuring is long.But in fact, the measuring condition required by Langley calibrating methods very
Difficulty reaches, and the rotation with the earth is constantly changing in itself with revolution and air, and the time of measurement is more long, air it is steady
Fixed degree is also poorer, and the error of the measurement result finally obtained is also bigger.That therefore causes that such a method calibrated can
Implementation is poor.,, can be with to reduce measurement request this application provides a kind of smooth prompt radiation intensity calibration method based on this
Measurement is completed in a short time, the error of measurement is reduced, and improves the exploitativeness of measurement.This method can apply to solar radiation
In the device that meter, astrophotometer etc. are calibrated the prompt radiation intensity of light.
Shown in Figure 1, the light prompt radiation intensity calibration method that the embodiment of the present application is provided includes：
S101：Measurement moment solar distance modifying factor, relative atmospheric quality are obtained, and, relative atmospheric quality is extremely
The magnitude of voltage of the light of the setted wavelength exported in a few surveying range by measuring instrument, the magnitude of voltage of each surveying range is equal
Have multiple；Maximum and minimum value difference up to 2 of the relative atmospheric quality in the surveying range；
When implementing, track, the track of earth rotation rotated due to the earth around the sun is had been known
Prior art, therefore measurement moment solar distance modifying factor acquisition methods, can be by current measurement time (during measurement
Carve), measurement place longitude and latitude be computed formula calculate acquisition.Generally, according to time of measuring and measurement place
Longitude and latitude when calculated through formula, measurement moment solar distance modifying factor R meets formula (1)：
R=(rm/r)2 (1)
Wherein, rm：Mean Earth-Sun distance；r：Actual solar distance during measurement.rmIt is a known definite value, and r then will
According to the beeline of the height of measurement site, longitude and latitude, the sun apart from the earth, solar zenith angle etc. when measurement
Value is calculated.
The SEQUENCING VERTICAL direction total optical thickness of setted wavelength is when measurement, it may be that a definite value, this is required
Within the time of measurement, air has higher stability, but air is all being continually changing all the time, therefore makes
SEQUENCING VERTICAL direction total optical thickness into setted wavelength can be with being continually changing of atmosphere, the rotation of the earth, revolution etc.
There is certain change, so if the time of measurement is more long, then final measurement result can be caused more inaccurate.Therefore, exist
In the application, maximum and minimum value difference up to 2 of the relative atmospheric quality in the surveying range；I.e. at each
In surveying range, the difference of maximum air quality and minimum air quality is up to 2, for example can be by by the relatively large of measurement
Makings amount is set to 1~2,2~3,3~4,4~5, at least one, or at least one in 1~3,3~5,5~7, so as to subtract
The surveying range of small relative atmospheric quality, and the surveying range of relative atmospheric quality is smaller, the time required for measurement also gets over
Short, the time is shorter, and the stability of air is comparatively higher, and within the shorter time, air keeps stable state
More easily reach.For example, when measurement, selection relative atmospheric quality measures for 1~2, and relative atmospheric quality 1
General of~2 time can continue or so half an hour, within the time of or so half an hour, take multiple measurements, equivalent to
It is the measurement data that more crypto set is obtained within the time shorter relative to prior art, error is small, and measuring condition is easier
Reach.Preferably, in each surveying range, the number of times of measurement at least should be 3, i.e., in each surveying range, leads to
The magnitude of voltage crossed acquired in measuring instrument should at least 3, it is preferable that can measure 5 times.
In view of in a surveying range, the magnitude of voltage obtained by measurement may have error, so as to influence demarcation
As a result, it can be considered to measure (at least two) in multiple surveying ranges, measured repeatedly in each surveying range,
And each surveying range can obtain a calibration voltage value during follow-up, to being obtained in each surveying range
The calibration voltage value obtained is taken the mean, and as final calibration result, so, can be reduced error, be improved the accuracy rate of demarcation.
Light prompt radiation intensity calibration method provided herein, is obtaining parameters described above (the measurement moment
Solar distance modifying factor, relative atmospheric quality, and relative atmospheric quality pass through measuring instrument at least one surveying range
The magnitude of voltage of the light of the setted wavelength of device output) after, in addition to：
S102：The relative atmospheric quality corresponding with the magnitude of voltage that measuring instrument is exported is done into conversion reciprocal；
When implementing, because measuring instrument often exports a magnitude of voltage V, the magnitude of voltage can correspond to one specifically
Relative atmospheric quality m, the air quality does conversion reciprocal, due in S101, being to be directed at least one relatively large makings
Multiple measurement is done in the interval of amount, if when pendulous frequency is 5 times, then can obtain 5 in a surveying range
The magnitude of voltage that individual measuring instrument is exported, each magnitude of voltage is to that should have a relative atmospheric quality m, to relative atmospheric quality
M does conversion reciprocal, obtains 1/m, equivalent to the resolution ratio for improving relative atmospheric quality m, effectively shortens scaled time.
S103：The magnitude of voltage of the light of the setted wavelength exported according to Beer-Lambert laws, measuring instrument, do inverse
Relative atmospheric quality, measurement moment solar distance modifying factor after conversion, are calculated each using least square regression algorithm
Calibration voltage value in surveying range.
When implementing, according to Beer-Lambert laws, the setted wavelength λ measured on ground light direct beam spoke
Degree of penetrating E (λ) meets formula (2)：
E (λ)=E0(λ)·R·exp(-m(θ)·τ(λ))·Tg (2)
In formula (1), E0(λ) is straight apart from the sun of the upper previous af at wavelength lambda of air in an astronomical unit (AU)
Spectral irradiance is penetrated, i.e., finally to measure obtained result, and R is the solar distance modifying factor for measuring the moment, m (θ) is phase
To air quality (also known as air quality number), θ is observation moment solar zenith angle；τ (λ) is SEQUENCING VERTICAL side at setted wavelength λ
To total optical thickness；Tg is absorbs gas permeation rate, during actual measurement, and the measurement wavelength of general measure instrument is selected in gas point
Son absorbs negligible wavelength, i.e., all Tg=1.
In measuring instrument, the measurement result of beam radia data shows as the voltage that measuring instrument is exported, and surveys
Measure that voltage and incident spectral irradiance be proportional or linear relationship, therefore, when the electricity exported using measuring instrument
When pressure V (λ) represents sun direct projection irradiation level E (λ), above-mentioned formula (2) can be expressed as formula (3)：
V (λ)=V0(λ)·R·exp(-m(θ)·τ(λ)) (3)
V in formula (3)0(λ) is air external world E in measuring instrument correspondence formula (2)0The response magnitude of voltage of (λ), is instrument
Calibration data, i.e., the application calibrate when need obtain data, V (λ) is relative atmospheric quality at least one surveying range
The magnitude of voltage of the setted wavelength λ exported by measuring instrument light.
Existing Langley scaling methods are that above-mentioned formula (3) is carried out after logarithmic transformation, are expressed as formula (4)：
Ln V (λ)=ln V0(λ)+ln R-m(θ)·τ(λ) (4)
Because the calibration data to be obtained are V0(λ), it should be a definite value in theory, and V (λ) is by measurement
The magnitude of voltage that instrument is obtained, and R can be obtained by calculating, according to the observation moment sun zenith when m (θ) is measurement
Angle θ and other given datas, are computed obtaining, corresponding to equation y=Ax+B, i.e. y=lnV, x=m, A=- τ, B=
lnV0+ lnR, the V values under different relative atmospheric quality m can be obtained by measuring instrument, can be by the party according to linear fit
Journey appears as a straight line in a coordinate system, linear between x, y, and A is the slope (i.e. τ is backslash rate) of the straight line,
And should between intersection point, as m=0 with y-axis when B values, the calibration value V that now B values are as finally calibrated0.But it is this fixed
In mark method, due to m (θ) span be usually 1~7, it is necessary to observation time be generally 6~7 hours, it is therefore lasting
Of long duration, observation condition is relatively inaccessible to.
And be then, to carry out the 1/m after conversion reciprocal as independent variable, to carry out final conversion in this application, therefore,
In the application, calibration voltage value V0Meet formula (4)：
Wherein：V(λ)：The magnitude of voltage of the setted wavelength λ exported by measuring instrument light, the value is provided by measuring instrument；
V0(λ)：The calibration voltage value of setted wavelength λ light, the value, as unknown quantity, is the nominal voltage value finally obtained, Ke Yili
Acquisition is computed with using least square regression algorithm；R：Moment solar distance modifying factor is measured, the value passes through above-mentioned S101
Obtain；τ(λ)：SEQUENCING VERTICAL direction total optical thickness at setted wavelength λ, the value can be as a unknown quantity, by using most
A young waiter in a wineshop or an inn multiplies regression algorithm calculating and obtained；m(θ)：Relative atmospheric quality, the value is a variable, can observe acquisition；θ：During observation
Solar zenith angle is carved, the value can be directly obtained in observation by measuring instrument.
It can know from foregoing description, because in the surveying range of each relative atmospheric quality, measuring instrument can
Measurement is multiple, so as to export multiple magnitudes of voltage, each magnitude of voltage is corresponding a relative atmospheric quality m (θ), for example,
Measure n times, it becomes possible to which N number of equation is obtained according to formula (4), then according to this N number of equation, using least square regression algorithm,
The minimum V of error can directly be calculated0(λ)。
Light prompt radiation intensity calibration method provided herein, by obtaining measurement moment solar distance modifying factor
The setted wavelength that son, relative atmospheric quality and relative atmospheric quality are exported at least one surveying range by measuring instrument
The magnitude of voltage of light, and the relative atmospheric quality is in maximum and the minimum value difference up to 2 of the surveying range；Each
In surveying range, multiple magnitudes of voltage can be measured, this is the equal of to be measured in smaller relative atmospheric quality interval, and
The interval of relative atmospheric quality is much smaller than of the prior art 1~7, during measurement, and or so half an hour just can complete a survey
Measurement in amount interval, and within the time of or so half an hour, relative to 6~7 hours of air more stablize, and measurement
Time it is short, more preferably reach the environmental requirement of measurement.In addition will be corresponding with the magnitude of voltage that measuring instrument is exported relatively large
Makings amount does conversion reciprocal, is the equal of that measurement (density of increase measurement) is encrypted in the short period of time, ensure that
On the premise of fitting data amount, the calibration results can be finally provided, with more practicality.
Further embodiment of this invention provides a kind of smooth prompt radiation intensity calibration device, and the device is arranged on light radiation survey
It is shown in Figure 2 on measuring appratus, including：
Data acquisition module 111, for acquisition measurement moment solar distance modifying factor, the SEQUENCING VERTICAL side of setted wavelength
To total optical thickness, and, the setted wavelength that relative atmospheric quality is exported at least one surveying range by measuring instrument
The magnitude of voltage of light, the magnitude of voltage of each surveying range has multiple；Maximum of the relative atmospheric quality in the surveying range
Value and minimum value difference up to 2；
Data transformation module 112, for the relative atmospheric quality corresponding with the magnitude of voltage that measuring instrument is exported to be done
Inverse conversion；
Scaling module 113, for the electricity of the light of setted wavelength exported according to Beer-Lambert laws, measuring instrument
Pressure value, the relative atmospheric quality after conversion reciprocal, measurement moment solar distance modifying factor are done, utilize least square regression algorithm
Calculate the calibration voltage value in each surveying range.
Wherein：
The calibration voltage value V0Meet formula (4)：
Wherein：V(λ)：The magnitude of voltage of the setted wavelength λ exported by measuring instrument light；V0(λ)：Setted wavelength λ light
Calibration voltage value；R：Measure moment solar distance modifying factor；τ(λ)：The total optics in SEQUENCING VERTICAL direction is thick at setted wavelength λ
Degree；m(θ)：Relative atmospheric quality；θ：Observe moment solar zenith angle.
The measurement moment solar distance modifying factor R meets formula (1)：
R=(rm/r)2 (1)
Wherein：rm：Mean Earth-Sun distance；r：Actual solar distance during measurement.
When the surveying range at least two, the final calibration voltage value is every at least two surveying ranges
The average value of calibration voltage value obtained by individual surveying range.
In the present embodiment, data acquisition module 111, data transformation module 112, scaling module 113, concrete function and friendship
Mutual mode, reference can be made to the record of the corresponding embodiments of Fig. 1, will not be repeated here.
The light prompt radiation intensity calibration device provided in the present embodiment, is obtained by data acquisition module 111 and surveyed
Measure moment solar distance modifying factor, relative atmospheric quality and relative atmospheric quality and pass through measurement at least one surveying range
The magnitude of voltage of the light of the setted wavelength of instrument output, and the relative atmospheric quality is in the maximum and minimum of the surveying range
Value difference up to 2；In each surveying range, multiple magnitudes of voltage can be measured, this is the equal of in smaller relative atmospheric
Quality is measured in interval, and the interval of relative atmospheric quality is much smaller than of the prior art 1~7, during measurement, half an hour
Left and right just can complete the measurement in a surveying range, and within the time of or so half an hour, air is relative to 6~7
Hour more stablizes, and the time of measurement is short, more preferably reaches the environmental requirement of measurement.Will be with by data transformation module 112
The corresponding relative atmospheric quality of magnitude of voltage that measuring instrument is exported does conversion reciprocal, is the equal of to enter in the short period of time
Row intensive measurement (density of increase measurement), on the premise of it ensure that fitting data amount, can finally provide the calibration results, more
With practicality.Then minimum, using above-mentioned each parameter, is utilized according to Beer-Lambert laws further according to scaling module 113
Two, which multiply regression algorithm, calculates the calibration voltage value in each surveying range, and the calibration results precision obtained is higher.
Further embodiment of this invention provides a kind of smooth prompt radiation intensity calibration system, including at least includes light radiation survey
The system for measuring instrument, in addition to：Light prompt radiation intensity calibration device as provided in above-mentioned embodiment.
Wherein, in the present embodiment, optical radiation measurement instrument, the concrete function of light prompt radiation intensity calibration device and interaction side
Formula, reference can be made to the record of the corresponding embodiments of Fig. 1, will not be repeated here.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description
With the specific work process of device, the corresponding process in preceding method embodiment is may be referred to, be will not be repeated here.
If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (8)
1. a kind of smooth prompt radiation intensity calibration method, it is characterised in that this method includes：
Measurement moment solar distance modifying factor, relative atmospheric quality are obtained, and relative atmospheric quality is measured at least one
The magnitude of voltage of the light for the setted wavelength that interval is exported by measuring instrument, the magnitude of voltage of each surveying range has multiple；It is described
Maximum and minimum value difference up to 2 of the relative atmospheric quality in the surveying range；
The relative atmospheric quality corresponding with the magnitude of voltage that measuring instrument is exported is done into conversion reciprocal；
The magnitude of voltage of the light of the setted wavelength exported according to Beer-Lambert laws, measuring instrument, do after conversion reciprocal
Relative atmospheric quality, measurement moment solar distance modifying factor, are calculated in each surveying range using least square regression algorithm
Interior calibration voltage value；
The calibration voltage value V0Meet formula (4)：
(4)
Wherein：V(λ)：The magnitude of voltage of the setted wavelength λ exported by measuring instrument light；V0(λ)：Setted wavelength λ light is determined
Mark magnitude of voltage；R：Measure moment solar distance modifying factor；τ(λ)：SEQUENCING VERTICAL direction total optical thickness at setted wavelength λ；m
(θ)：Relative atmospheric quality；θ：Observe moment solar zenith angle.
2. according to the method described in claim 1, it is characterised in that measurement moment solar distance modifying factor R meets public
Formula (1)：
(1) R=(rm/r)2
Wherein：rm：Mean Earth-Sun distance；r：Actual solar distance during measurement.
3. method according to claim 1 or 2, it is characterised in that when the surveying range at least two, final
The calibration voltage value is the average value of the calibration voltage value obtained by each surveying range at least two surveying ranges.
4. method according to claim 3, it is characterised in that the surveying range of the relative atmospheric quality is：1~2,2
One or more in~3,3~4 and 4~5；
In the surveying range of relative atmospheric quality, the magnitude of voltage that measuring instrument is provided at least 3.
5. a kind of smooth prompt radiation intensity calibration device, described device is arranged on optical radiation measurement instrument, it is characterised in that bag
Include：
Data acquisition module, for obtaining measurement moment solar distance modifying factor, relative atmospheric quality, and relatively large makings
Measure the magnitude of voltage of the light of the setted wavelength exported at least one surveying range by measuring instrument, the voltage of each surveying range
Value has multiple；Maximum and minimum value difference up to 2 of the relative atmospheric quality in the surveying range；
Data transformation module, for the relative atmospheric quality corresponding with the magnitude of voltage that measuring instrument is exported to be done into change reciprocal
Change；
Scaling module, magnitude of voltage for the light of setted wavelength that is exported according to Beer-Lambert laws, measuring instrument, does
Relative atmospheric quality, measurement moment solar distance modifying factor after inverse conversion, are calculated using least square regression algorithm
Calibration voltage value in each surveying range；
The calibration voltage value V0Meet formula (4)：
(4)
Wherein：V(λ)：The magnitude of voltage of the setted wavelength λ exported by measuring instrument light；V0(λ)：Setted wavelength λ light is determined
Mark magnitude of voltage；R：Measure moment solar distance modifying factor；τ(λ)：SEQUENCING VERTICAL direction total optical thickness at setted wavelength λ；m
(θ)：Relative atmospheric quality；θ：Observe moment solar zenith angle.
6. device according to claim 5, it is characterised in that the measurement moment solar distance modifying factor R meets public
Formula (1)：
(1) R=(rm/r)2
Wherein：rm：Mean Earth-Sun distance；r：Actual solar distance during measurement.
7. the device according to claim 5 or 6, it is characterised in that when the surveying range at least two, final
The calibration voltage value is the average value of the calibration voltage value obtained by each surveying range at least two surveying ranges.
8. a kind of smooth prompt radiation intensity calibration system, including at least include the system of optical radiation measurement instrument, it is characterised in that also
Including：Light prompt radiation intensity calibration device as described in above-mentioned claim 5-7 any one.
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