An energy calculation method for polarized light imaging system in complex weather

Abstract

The invention discloses a method for calculating the energy of a polarized light imaging system under complex weather, belonging to the field of optical detection theory research, including determining polarized light imaging conditions and environmental conditions, target and detector parameters under complex weather; calculating solar radiation energy in the detector The irradiance to the target in the response band; use the 6S atmospheric radiation transfer model to determine the polarized reflectance of the target; obtain the brightness of the target’s indirect radiation; use Modtran4.0 software to determine the average transmittance of the detector in the response band; use zemax software to determine The transmittance of the optical system; obtain the central illuminance of the detector image plane, the light energy at the entrance pupil of the optical system, the number of electrons generated by the target on the detector, the total noise of the system and the signal-to-noise ratio; use Matlab / VC++ programming software, according to the above The software is compiled during the process, and the analysis and optimization iterations are carried out; finally, a polarized light imaging system that meets the energy requirements and signal-to-noise ratio requirements is formed.

Description

technical field [0001] The invention belongs to the research field of optical detection theory, and in particular relates to an energy calculation method of a polarized light imaging system under complex weather. Background technique [0002] my country's optoelectronic imaging equipment is mainly based on intensity imaging TV cameras or infrared thermal imaging cameras, that is, by obtaining the reflection of the target and the background, the distribution characteristics of the radiation intensity in space, and combining information processing methods to identify and track the target of interest . This method has played an important role under previous conditions, but the detection performance is degraded in complex environments such as smog and smoke, and it is difficult to identify and distinguish low-contrast targets. Polarization imaging detection technology has the advantages of "penetrating smoke", "highlighting targets", and "distinguishing authenticity", and has re...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to obtain the result of polarized light energy transfer in real fog and haze weather, better develop the environmental adaptability of the polarization imaging detection optical system design and equipment application, and propose a polarized light in complex weather Energy Calculation Method of Imaging System

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