基于Fabry-Perot干涉仪的光谱超分辨率技术用于时间和空间调制的富里埃变换成像光谱仪
Yu Zhang1,2,3, Qunbo Lv1,2,3, Jianwei Wang1,3
1Aerospace Information Research Institute, Chinese Academy of Sciences, No. 9 Dengzhuang South Road, Haidian District, Beijing 100094, China.
Sensors (Basel, Switzerland)
|February 26, 2025
概括
一种新的光谱超分辨率技术结合了法布里-佩罗干扰仪 (FPI) 和一个时间和空间调制的里埃变换成像光谱仪 (TSMFTIS). 这种方法通过克服光路差异限制,使光谱分辨率增加一倍,提供了一个稳定,具有成本效益的解决方案.
科学领域:
- 光学工程是指光学工程.
- 频谱学是一种光谱学.
- 影像科学 影像科学
背景情况:
- 富里埃变换成像光谱仪 (FTIS) 面临着由于最大光路径差异 (OPD) 的光谱分辨率的限制.
- 费布里-佩罗干扰仪 (FPI) 提供光谱过,但需要复杂的集成以提高分辨率.
- 现有的光谱超分辨率技术往往涉及吞吐量,稳定性或成本的权衡.
研究的目的:
- 通过将FPI与TSMFTIS集成来开发一种新的光谱超分辨率技术.
- 克服传统FTIS系统固有的OPD限制.
- 为了提高光谱分辨率,同时保持高吞吐量和系统稳定性.
主要方法:
- 将Fabry-Perot干扰仪 (FPI) 与一个时间和空间调制的里埃变换成像光谱仪 (TSMFTIS) 结合起来.
- 利用FPI的多束干扰来定期调节目标频谱.
- 通过TSMFTIS获取调制干涉图,并使用反转算法来恢复高频谱信息.
- 调查FPI光学缺陷的影响,并开发纠正算法.
主要成果:
- 与传统方法相比,在光谱分辨率上取得了两倍的改进.
- 证明了多元组件关节干扰成像的能力.
- 验证了反向算法的有效性,以恢复高频谱数据.
- 量化了FPI光学缺陷的影响,并提出了有针对性的改进策略.
结论:
- 集成的FPI-TSMFTIS系统有效地提高了超越OPD限制的光谱分辨率.
- 拟议的技术为光谱超分辨率提供了稳定,坚固和成本效益的解决方案.
- 这种方法为推进基于TSMFTIS的光谱成像提供了新的途径.
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