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Atmospheric correction method for detecting radiation intensity of missile tail flame

A technology of atmospheric correction and radiation intensity, which is applied in the aerospace field, can solve problems such as the inability to obtain plume spectra, errors, and difficulties in atmospheric correction, and achieve the effect of improving radiation accuracy

Active Publication Date: 2017-10-13
BEIJING INST OF ENVIRONMENTAL FEATURES
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Problems solved by technology

When a thermal imager is used to detect the radiation intensity of the missile plume, since the thermal imager cannot obtain the spectrum of the plume, it can only obtain the total radiation value of a specific band, which brings great difficulties to atmospheric correction. The average transmittance algorithm will produce a large error in the atmospheric correction process

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  • Atmospheric correction method for detecting radiation intensity of missile tail flame
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  • Atmospheric correction method for detecting radiation intensity of missile tail flame

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[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0033] An atmospheric correction method for detecting the 4-5 μm radiation intensity of a missile plume proposed in this embodiment, the flow chart is as follows figure 1 As shown in , that is, the atmospheric transmittance is obtained first, then the statistical weight of the plume spectral structure in the atmospheric correction process is calculated, and finally the atmospheric correction is performed on the radiation intensity of the missile plume. specific: ...

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Abstract

The invention discloses an atmospheric correction method for detecting the radiation intensity of missile tail flame. The method comprises the following steps: acquiring the atmospheric transmissivity, calculating the statistic weight of the spectral structure of the missile tail flame in the atmospheric correction process, and carrying out atmospheric correction on the radiation intensity of the missile tail flame, wherein the waveband of the missile tail frame is 4-5 [mu]m. The method effectively improves the body radiation precision of a thrust reverser.

Description

technical field [0001] The invention relates to the field of aerospace, in particular to an atmospheric correction method for detecting the radiation intensity of missile plume. Background technique [0002] Quantitative measurement of target optical properties is an important link in the field of target property research. Measured data is often considered the most accurate and convincing information. To achieve high-precision quantitative measurement also requires many technical links as support, such as calibration technology, data processing technology, etc. Among them, atmospheric correction technology is one of the essential technologies for carrying out quantitative measurements in the atmosphere. Since the earth's atmosphere is a gaseous medium with selective absorption characteristics, any radiant energy propagating in the atmosphere will be attenuated by the selective absorption of the atmosphere. Therefore, the inversion of atmospheric attenuation is an importan...

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Application Information

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IPC IPC(8): G01N21/25
CPCG01N21/25G01N2201/12746
Inventor 吴杰朱希娟李霞刘兴润马静
Owner BEIJING INST OF ENVIRONMENTAL FEATURES
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