【摘要】：通過微面元理論的函數(shù)模型,基于紅外偏振輻射傳輸方程,推導分析紅外偏振角與目標表面折射率、反射率及探測角度等關(guān)系的數(shù)學模型,通過合理簡化模型仿真得出偏振角隨入射角的單調(diào)變化曲線;開展紅外偏振成像試驗,試驗數(shù)據(jù)分析與仿真結(jié)果一致,這表明:目標邊緣輪廓的偏振角特征與探測波長的相關(guān)性可以忽略,在目標與背景輻射相差較小的情況下,采用光譜輻射亮度對比度的方法無法區(qū)分目標,而通過偏振角對比度可以明顯區(qū)分-目標邊緣特征,并提出通過基于目標幾何特征以及探測位置,反演解算目標的姿態(tài)信息的新方法.
[Abstract]:Based on the infrared polarization radiation transfer equation, the mathematical model of the relationship between the infrared polarization angle and the refractive index, reflectivity and detection angle of the target surface is derived through the function model of the micro-plane theory. The monotone curve of polarization angle with incident angle is obtained by reasonably simplifying the model simulation, and the infrared polarization imaging experiment is carried out, and the experimental data analysis is consistent with the simulation results. This shows that the correlation between the polarization angle characteristics of the target edge profile and the detection wavelength can be neglected. When the difference between the target and background radiation is small, the method of spectral radiance contrast can not distinguish the target. Through the contrast of polarization angle, the edge features of the target can be distinguished obviously, and a new method is proposed to inverse the attitude information of the target based on the geometric features of the target and the location of the detection.
【作者單位】： 北京環(huán)境特性研究所光學輻射重點實驗室;信陽師范學院物理電子工程學院;
【基金】：國家重點基礎研究發(fā)展計劃973項目(613225)~~
【分類號】：TP391.41;O436.3

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