基于目标边缘轮廓偏振特征的姿态分析初探
发布时间：2018-08-09 21:07
【摘要】：通过微面元理论的函数模型,基于红外偏振辐射传输方程,推导分析红外偏振角与目标表面折射率、反射率及探测角度等关系的数学模型,通过合理简化模型仿真得出偏振角随入射角的单调变化曲线;开展红外偏振成像试验,试验数据分析与仿真结果一致,这表明:目标边缘轮廓的偏振角特征与探测波长的相关性可以忽略,在目标与背景辐射相差较小的情况下,采用光谱辐射亮度对比度的方法无法区分目标,而通过偏振角对比度可以明显区分-目标边缘特征,并提出通过基于目标几何特征以及探测位置,反演解算目标的姿态信息的新方法.
[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.
【作者单位】： 北京环境特性研究所光学辐射重点实验室;信阳师范学院物理电子工程学院;
【基金】：国家重点基础研究发展计划973项目(613225)~~
【分类号】：TP391.41;O436.3
本文编号：2175314
[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.
【作者单位】： 北京环境特性研究所光学辐射重点实验室;信阳师范学院物理电子工程学院;
【基金】：国家重点基础研究发展计划973项目(613225)~~
【分类号】：TP391.41;O436.3
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