調(diào)制型偏振成像技術
發(fā)布時間:2018-02-21 16:47
本文關鍵詞: 物理光學 高光譜偏振成像 光譜調(diào)制 高階波片 光柵色散 出處:《激光與光電子學進展》2017年06期 論文類型:期刊論文
【摘要】:傳統(tǒng)的偏振成像技術存在偏振成像實時性差、多光譜偏振成像困難和無法實現(xiàn)高光譜偏振成像等問題。針對這些問題,提出了一種新的基于信號調(diào)制解調(diào)理論的偏振成像理論,并根據(jù)該理論提出了一種基于光柵色散的光譜調(diào)制型高光譜偏振成像儀。該偏振成像儀首先測得被偏振調(diào)制過的光譜信號,再經(jīng)過頻域濾波與反演計算獲得高光譜圖像與偏振圖像,因此該偏振成像儀可實現(xiàn)高光譜全偏振成像,并且可將高光譜成像與偏振成像完美融合。通過仿真實驗驗證了所提偏振成像儀在理論上的正確性。
[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.
【作者單位】: 蘭州空間技術物理研究所;
【基金】:國家高技術研究發(fā)展計劃(2011AA12A103)
【分類號】:O436.3;TH744
,
本文編號:1522365
本文鏈接:http://sikaile.net/kejilunwen/wulilw/1522365.html