CN106546264A - A kind of technical method that stray light analysis is incorporated Thermal/Structural/Optical Integrated Analysis - Google Patents
A kind of technical method that stray light analysis is incorporated Thermal/Structural/Optical Integrated Analysis Download PDFInfo
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- CN106546264A CN106546264A CN201610917494.9A CN201610917494A CN106546264A CN 106546264 A CN106546264 A CN 106546264A CN 201610917494 A CN201610917494 A CN 201610917494A CN 106546264 A CN106546264 A CN 106546264A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
Abstract
The invention discloses a kind of technical method that stray light analysis is incorporated Thermal/Structural/Optical Integrated Analysis.This method is using the Orbital heat flux and ascent in thermal analysis method, external stray light and instrument internal itself radiation for calculating analysis space optical instrument reaches the levels of light energy of detector focal plane, and then it is theoretical using shot noise, analysis impact of the veiling glare to urban tour ism service behaviour, so that Analysis for Stray Light and thermal analysis melt as same analysis process, realize stray light analysis is incorporated a kind of technical method of Thermal/Structural/Optical Integrated Analysis.
Description
Technical field
The invention belongs to space optical remote emulation technology, and in particular to a kind of stray light analysis incorporates existing ray machine
It is thermally integrated the method for analytical technology, it is adaptable to the design and simulation analysis process of space optical remote sensing instrument, can effectively reduces light
Data iterations between credit analysis and thermal analysis, saves the time of design and simulation optimization, and can directly obtain spatial light
Learn the signal to noise ratio emulation data of any time of instrument operation on orbit.
Background technology
With the high accuracy of space optical remote technology, quantification, short-period development, space optical remote sensing instrument sets
Meter analysis means also update therewith.Most representational is that ray machine is thermally integrated simulation analysis, such as Structural/
Thermal/Optics Performance (STOP) analysis platform, Systema platforms, sigfit data-interface instruments.This
Optics, calorifics and structure mechanics analysis are fused together by analytical technology, will be the design assay index of space camera direct
The optical image matter of camera, such as encircled energy and transmission function (analytical technology flow process is as shown in Figure 1) are locked in, and it is non-traditional
Optical system Tolerance assignment, the strain of temperature field scope and structure or thermal strain amount independent assessment.
Urban tour ism high accuracy is affected to be not only its optical image matter with the factor of quantification, veiling glare is also important
One of influence factor.Veiling glare refers to the non-targeted imaging light for reaching optical system image planes.It is for infrared optical system, spuious
Light includes external stray light and instrument internal itself radiation two parts.Impact of the veiling glare to urban tour ism, the lighter so that
The signal to noise ratio of target is reduced, and obscures target imaging, and contrast declines, so as to affect detection or the recognition capability of whole system,
Severe one, detected echo signal are buried in veiling glare background completely, and system cannot extract target, or because image planes veiling glare is distributed
It is uneven, form spurious signal on system detector, and then cause system to detect pseudo- target and even result in whole system mistake
Effect.
The relatively conventional analytical technology of Thermal/Structural/Optical Integrated Analysis technology has tremendous lifting, but not yet by veiling glare
Part of the impact analysis as the analytical technology, therefore, current Thermal/Structural/Optical Integrated Analysis technology is not perfect.
Orbital heat flux and ascent parsing external stray light and instrument internal itself radiation of the present invention using thermal analysis software
Impact, Analysis for Stray Light process is merged into into thermal analysis process, so as to by Analysis for Stray Light technology introducing ray machine be thermally integrated
Analytical technology, and veiling glare is introduced to the calculating of camera signal to noise ratio as a part for shot noise, so as to by evaluation index
The detectivity signal to noise ratio of urban tour ism is promoted to from optical image matter, makes evaluation index more directly perceived, close to application.Should
Technical research is that, to the perfect of Thermal/Structural/Optical Integrated Analysis, have important meaning to room for promotion Optical Instrument Designing simulation analysis ability
Justice.
The content of the invention
From for physical essence, light and heat are electromagnetic waves, are only the differences of the form of expression, therefore, calorifics simulation analysis
Software has something in common with veiling glare simulation analysis software, such as using ripe M-C algorithms.Calorifics simulation analysis software
It is relatively weak in terms of the analysis in the calorifics temperature field for laying particular emphasis on, its spectral characteristic, and veiling glare simulation analysis software lay particular emphasis on it is right
The analysis of veiling glare rejection ability, lacks orbital environment analog functuion, in terms of optical system stray light quantitative analysis
Exist and lack temperature field accuracy, the limitation of the real-time in temperature field.
A kind of technical method that stray light analysis is incorporated Thermal/Structural/Optical Integrated Analysis of this technology invention.Analytical technology stream
Journey is as shown in Figure 2.The stray light that urban tour ism is subject to includes external stray light and instrument internal itself radiation dispersion
Light.
External stray light of the present invention analysis, using thermal analysis technology in, urban tour ism is placed in into space orbit bar
Orbital heat flux analytical technology under part, with reference to Planck's law of radiation, calculates urban tour ism and is subject under the conditions of space orbit
The sun, the impact of earth light veiling glare；The Energy Conversion factor in concern spectral bandwidth：
Wherein, MλSolar spectrum radiant exitance.
Instrument internal of the present invention itself radiation dispersion light analyze, using thermal analysis technology in, light in urban tour ism
Department of the Chinese Academy of Sciences's part, the temperature field of mechanical part and ascent, calculate urban tour ism infrared band detector and receive instrument itself
The impact of radiation.The instrument that focal plane is received itself radiates average illumination：
Wherein, MiλI-th node spectral radiant exitance；BijAscent, the energy between i-th node and j-th node
Amount exchange factor.
Finally, the external stray light for detector being received and instrument internal itself radiation count the shot of optical instrument and make an uproar
Sound, is calculated the instrument signal to noise ratio of urban tour ism.
Wherein,
Nsignal：Signal equivalent electric subnumber, which is by instrumental optics as matter is affected；
Ncircuit：Detector and data acquisition Electronics noice equivalent electric subnumber；
Nbackground：Ambient noise equivalent electric subnumber, including instrument itself radiated noise and detection ambient noise；
Nstraylight：External stray light equivalent electric subnumber.
Description of the drawings
Fig. 1 is existing Thermal/Structural/Optical Integrated Analysis techniqueflow.
Fig. 2 is the Thermal/Structural/Optical Integrated Analysis techniqueflow for incorporating stray light analysis.
Fig. 3 is the optical energy concentration degree of calculated certain urban tour ism of existing ray machine heat analysis flow simulation
Situation of change.
Fig. 4 is calculated certain urban tour ism of ray machine heat analysis flow simulation for incorporating stray light analysis
SNR situations of change.
Specific embodiment
This technology invention selects Thermal/Structural/Optical Integrated Analysis STOP emulation platforms as simulation analysis technology carrier.According to ray machine
It is thermally integrated the compatibility of analysis platform STOP, thermal analysis choice of software Thermal Desktop.Such as thermal analysis technology one
Sample, during Analysis for Stray Light, carries out the finite element grid node division of CAD model, model trajectory, camera thermal source, radiation
The setting of the attributes such as conduction, except for the difference that stress and strain model is optical element, and the version of the visible mechanical organ of light path is not
Can simplify, stress and strain model high precision.In terms of data output, except the temperature field of calorifics concern, output detector focal plane is also needed to connect
The Orbital heat flux received, and the ascent of each concern subcomponent nodes of radiation delivery module calculating and detector node.It is general using black matrix
Bright gram of radiation patterns carry out Orbital heat flux spectral characteristic conversion, using each node temperature field, the infrared spoke of ascent computing equipment itself
Penetrate focal plane illumination.Follow-up data process is using Matlab DAS.And above-mentioned data output is transferred to into STOP platforms,
Space optical remote sensing instrument operation on orbit performance is completed using Matlab modules in STOP platforms to calculate and evaluation.
As a example by being operated in the operation on orbit performance evaluation of stationary orbit three axis stabilized satellite platform urban tour ism.
Based on the hot simulation analysis flow process of existing ray machine, by taking season in certain urban tour ism spring and autumn point as an example, the optical image mass-energy amount of instrument
The situation of change of concentration degree, as shown in figure 3, as the sun is incident, instrument temperature field changes, causes thermal stress deformation, enter
And the optical image matter encircled energy of instrument is had influence on, and due to delay effect, afternoon 14 when on star:00 dislikes the most as matter
Bad, encircled energy drops to 54%.
When urban tour ism is detected to earth's surface overhead point target.In season in spring and autumn point, instrument SNR is as shown in figure 4, instrument
The device best effort period is 5:30～10:30 and 13:30～18:30 periods；The period at midnight on star, due to earth light shadow
Ring, the SNR of instrument is declined slightly；High noon 10 on star:30～13:30 periods, as sun direct projection causes optical image matter to deteriorate
With sun stray light seriously, instrument SNR has and is decreased obviously, particularly 11:29 and 12:Near 38 liang of moment, the sun
Veiling glare is sharply increased, and instrument SNR drops to less than 6, and instrument loses point target detectivity.
Fig. 3 is simulation result of the STOP emulation platforms when not adding stray light to analyze, and Fig. 4 is that platform addition is spuious
Simulation result after light impact analysis.Contrast is visible, and after adding stray light analysis, the evaluation index of system is from optical energy
Concentration degree is promoted to the SNR of instrument, be closer to application, and details reflect 11:29 and 12:38 liang of moment are attached
Closely, instrument signal to noise ratio drops to less than 6, loses detectivity, and simulation result is finer, can be the in-orbit work of planning before transmitting
Operation mode provides data reference.
Claims (1)
1. it is a kind of that stray light is analyzed the technical method for incorporating Thermal/Structural/Optical Integrated Analysis, it is characterised in that including following step
Suddenly：
1) in using thermal analysis technology, Orbital heat flux analytical technology urban tour ism being placed under the conditions of space orbit, knot
Planck's law of radiation is closed, the sun, earth light veiling glare that urban tour ism is subject under the conditions of space orbit is calculated
Affect；
2), in using thermal analysis technology, optics, the temperature field of mechanical part and ascent in urban tour ism are calculated
Urban tour ism infrared band detector receives the impact of instrument internal itself radiation；
3) veiling glare for receiving detector and instrument internal itself radiation count the shot noise of optical instrument, are calculated
The instrument signal to noise ratio of urban tour ism.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835406A (en) * | 2017-10-24 | 2018-03-23 | 中国科学院上海技术物理研究所 | A kind of high-sensitivity camera method for optimizing configuration |
| CN111158140A (en) * | 2019-12-26 | 2020-05-15 | 哈尔滨新光光电科技股份有限公司 | Stray light analysis and suppression method for high-energy laser optical system and high-energy laser optical system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504685A (en) * | 2009-03-03 | 2009-08-12 | 中国科学院光电技术研究所 | Bare engine thermal integration analysis method based on Fringe Zernike polynomial |
| JP2013183124A (en) * | 2012-03-05 | 2013-09-12 | Citizen Holdings Co Ltd | Semiconductor light emitting device |
| CN105547649A (en) * | 2015-12-05 | 2016-05-04 | 中国航空工业集团公司洛阳电光设备研究所 | Short-wave infrared lens stray radiation detection method |
-
2016
- 2016-10-21 CN CN201610917494.9A patent/CN106546264B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504685A (en) * | 2009-03-03 | 2009-08-12 | 中国科学院光电技术研究所 | Bare engine thermal integration analysis method based on Fringe Zernike polynomial |
| JP2013183124A (en) * | 2012-03-05 | 2013-09-12 | Citizen Holdings Co Ltd | Semiconductor light emitting device |
| CN105547649A (en) * | 2015-12-05 | 2016-05-04 | 中国航空工业集团公司洛阳电光设备研究所 | Short-wave infrared lens stray radiation detection method |
Non-Patent Citations (1)
| Title |
|---|
| 陆强等: "户外直接测试太阳杂散光对相机影响的一种新方法", 《红外》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835406A (en) * | 2017-10-24 | 2018-03-23 | 中国科学院上海技术物理研究所 | A kind of high-sensitivity camera method for optimizing configuration |
| CN107835406B (en) * | 2017-10-24 | 2019-03-29 | 中国科学院上海技术物理研究所 | A kind of high-sensitivity camera method for optimizing configuration |
| CN111158140A (en) * | 2019-12-26 | 2020-05-15 | 哈尔滨新光光电科技股份有限公司 | Stray light analysis and suppression method for high-energy laser optical system and high-energy laser optical system |
| CN111158140B (en) * | 2019-12-26 | 2022-03-08 | 哈尔滨新光光电科技股份有限公司 | Stray light analysis and suppression method for high-energy laser optical system and high-energy laser optical system |
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