Moldeling And Analysis Of Operating Range Of Infrared Polarization Imaging System

In recent years, Infrared Imaging System (IRIS) has been widely used inindustrial, military, medical and many other fields. Estimating the effective range ofIRIS is a key factor to improve the design level, reduce the costs, and shorten thedevelopment and production cycle of IRIS. Currently, polarization detection hasbecome an important means of detection. Especially, infrared polarization imagingsystem has also become a hot issue in the field. However, there is no specific modelproposed to estimate the effective range of infrared polarization imaging system. Inthis paper, we built an IRPIS based on analyzing the principle of infraredpolarization imaging and analyzing the effective range of the system.This paper represented the theories of infrared polarization imaging as well asthe infrastructures of several imaging systems. Furthermore, we analyzed theadvantages and utilities between the systems and select one system as theelementary infrastructure to build the IRPIS.There are a lot of factors that affect the effective range of IRIS. Generally, itcan be grouped into three aspects: target characteristics, atmospheric attenuation,infrared imaging structure and performance of the system itself. Firstly, the infraredradiation characteristics of the object were analyzed. In this section, the radiationintensity difference between target and background is denoted by the difference ofthe temperature of the object, and the polarization characteristics difference of thetarget and background is represented by the polarization contrast. Furthermore, weanalyzed and evaluated the effective range based on analyzing and calculating thetransmitting of the temperature difference of the object and the background.Finally, we established a model to evaluate the effective range of the IRPIS onthe basis of IRIS model. The models for the effective range prediction adapted forpoint source target and extended source target are also discussed based on NETDand MRTD, respectively. In this section, the IRPIS we proposed has also beenselected to evaluate the effective ranges between normal imaging and infraredimaging after which we discussed and compared the results.