基于浸入式光栅的偏振超光谱成像技术研究

项目名称： 基于浸入式光栅的偏振超光谱成像技术研究

项目编号： No.61501361

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 唐茜

作者单位： 西安电子科技大学

项目金额： 19万元

中文摘要： 在科学遥感探测领域中，光谱仪的应用十分广泛。其中基于浸入式光栅的光谱设备以其克服了小体积与超高光谱分辨本领之间矛盾的特性，成为目前国际上的研究热点，而国内尚未见相关报道。同时，将浸入式光栅应用于偏振光谱成像光学系统的研究在国内外也尚无涉及。本项目主要针对小型紧凑、结实易用的偏振超光谱成像应用需求（深空遥感探测、对地遥感观测等），提出一种以浸入式光栅为色散元件、利用偏振分束器同时获得正交线偏振图像信息的新型偏振超光谱成像方案。通过理论分析、系统仿真、优化评估等手段，对浸入式光栅的特性及其在偏振系统中的应用、成像系统总体匹配优化设计等方面所涉及的若干基础理论问题和关键技术问题，展开具有针对性和探索性的研究，所获得的成果对于偏振超光谱技术在遥感探测等多个领域的发展具有重要的理论意义与实际价值。

中文关键词： 遥感探测；图像获取；偏振；超光谱；浸入式光栅

英文摘要： In the remote sensing, spectrometers are widely used. Nowadays, the spectrometers based on the immersed grating become the international research focus because it can overcome the contradictions between small volume and high spectral resolving power. But we haven’t seen the domestic papers related. Meanwhile, the immersed grating has not been used in the imaging spectropolarimeters. We proposed a new imaging spectropolarimeter focusing on the requirements of small, light and capability systems(deep-space exploration，earth-observing remote sensing and so on ).It uses the immersed grating as the dispersive element and could get two mutually orthogonal linear polarized images simultaneously. By theoretical analysis, simulation and optimization evaluation, we take pertinence and exploratory researches on the basic theoretical problems and key technical issues about immersed grating’s characters, imaging system optimization design and many other problems. The results have important theoretical significance and practical value.

英文关键词： remote sensing;image acquiring; polarization;hyperspectrum;immersed grating