Fourier变换成像光谱技术  

Fourier transform imaging spectroscopy

作　　者：相里斌[1] 吕群波[1] 才啟胜 方煜[1] 周锦松[1] 黄旻[1] Bin XIANGLI;Qunbo LV;Qisheng CAI;Yu FANG;Jinsong ZHOU;Min HUANG(Key Laboratory of Computational Optical Imaging Technology,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China)

机构地区：[1]中国科学院计算光学成像技术重点实验室,空天信息创新研究院,北京100094

出　　处：《中国科学：信息科学》2020年第10期1462-1474,共13页Scientia Sinica(Informationis)

摘　　要：成像光谱仪能够获取目标的几何和光谱辐射信息,是一种具有量化分析和特征识别能力的光学感知手段,按照分光方式可分为棱镜色散、光栅衍射和干涉调制等多种类型.Fourier变换成像光谱技术通常基于双光束干涉原理,将探测器获取的干涉图通过Fourier变换反演出目标光谱.该技术具有高通量、多通道、高光谱分辨率等优点,是成像光谱技术中最具创新空间和应用潜力的重要研究方向,发展过程中逐步形成了时间调制、空间调制、时空调制等多种类型,在工业农业、科学研究、生物医药、大气探测、环境监测、资源调查等诸多领域得到广泛应用.本文从Michelson干涉仪原理出发,简要介绍Fourier变换光谱技术的基本理论,按照3种干涉调制类型分别介绍不同Fourier变换成像光谱技术的典型方案、突出特点和主要应用.Imaging spectrometry can obtain both geometric image and spectral radiation of targets.Prisms,gratings,and interferometers are often used for light decomposition.Fourier transform imaging spectroscopy(FTIS)is based on light interference to obtain interferograms of the target and reconstruct the spectra using the Fourier transform method.FTIS has numerous advantages,including high throughput and spectral resolution and multiplex.It is a hotspot in the field of imaging spectroscopy and has been established in three types,namely,temporally modulated,spatially modulated,and temporally-spatially modulated.FTIS has been widely used in various fields,including industry,agriculture,scientific research,biomedicine,atmospheric detection,environmental monitoring,and resource investigation.In this paper,the basic principle of FTIS based on the Michelson interferometer is briefly introduced.Typical techniques for different modulation types and remote sensing applications are also presented.

关 键 词：FOURIER变换 成像光谱 辐通量 多通道 调制度 并行采样 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]