为了同时获取目标光谱和偏振信息,基于正交双偏振法和声光可调谐滤光器,设计了一套分孔径同时式高光谱偏振成像系统。从高光谱偏振成像原理出发,介绍了成像系统的结构设计、光学设计和机械设计,利用穆勒矩阵理论对系统成像过程进行了分析。利用所设计的成像系统对三种伪装网和灌木丛进行检测分类实验。实验结果表明:伪装网与灌木丛的高光谱偏振特性存在较大差异,将光谱信息和偏振信息结合起来有利于提高检测能力和分类准确性;分孔径同时式高光谱偏振成像系统是一种有效、紧凑且可实时探测的高光谱偏振成像系统。

In order to obtain the target spectrum and polarization information at the same time, we design a hyperspectral polarization imaging system with multiple simultaneous apertures based on the orthogonal dual-polarization method and acousto-optic tunable filter. Based on the principle of hyperspectral polarization imaging, we introduce the structure design, optical design, and mechanical design of the imaging system and analyze the system imaging process using the Mueller matrix theory. We use the imaging system to distinguish three kinds of camouflage nets from bushes. The experimental results show that the hyperspectral polarization properties of camouflage nets and bushes are quite different. We can improve the detection ability and classification accuracy by combining the spectral information and dual-polarization information. The hyperspectral polarization imaging system with multiple simultaneous apertures is an effective, compact, and real-time hyperspectral polarization imaging system.