调制型偏振成像技术

发布时间：2018-02-21 16:47

  本文关键词： 物理光学 高光谱偏振成像 光谱调制 高阶波片 光栅色散　出处：《激光与光电子学进展》2017年06期 　论文类型：期刊论文

【摘要】：传统的偏振成像技术存在偏振成像实时性差、多光谱偏振成像困难和无法实现高光谱偏振成像等问题。针对这些问题,提出了一种新的基于信号调制解调理论的偏振成像理论,并根据该理论提出了一种基于光栅色散的光谱调制型高光谱偏振成像仪。该偏振成像仪首先测得被偏振调制过的光谱信号,再经过频域滤波与反演计算获得高光谱图像与偏振图像,因此该偏振成像仪可实现高光谱全偏振成像,并且可将高光谱成像与偏振成像完美融合。通过仿真实验验证了所提偏振成像仪在理论上的正确性。
[Abstract]:Traditional polarization imaging techniques have some problems, such as poor real-time polarization imaging, difficulty in multi-spectral polarization imaging and the inability to realize hyperspectral polarization imaging. A new polarization imaging theory based on signal modulation and demodulation theory is proposed. According to this theory, a spectral modulated hyperspectral polarization imager based on grating dispersion is proposed. The polarization-modulated spectral signal is first measured by the polarization imager. Then the hyperspectral image and polarization image are obtained by frequency domain filtering and inversion calculation, so the polarization imager can realize the hyperspectral full polarization imaging. The hyperspectral imaging and polarization imaging can be fused perfectly. The theoretical correctness of the proposed polarization imager is verified by simulation experiments.
【作者单位】： 兰州空间技术物理研究所;
【基金】：国家高技术研究发展计划(2011AA12A103)
【分类号】：O436.3;TH744
，

本文编号：1522365