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时间调制傅里叶变换红外光谱成像技术与应用研究

Study on Time-resolved Fourier Transform Infrared Spectral Imaging Technology and Its Applications

【作者】 魏儒义

【导师】 周泗忠; 杨晓许;

【作者基本信息】 中国科学院研究生院(西安光学精密机械研究所) , 光学工程, 2013, 博士

【摘要】 本论文立足于国内光谱成像技术现状和大气探测应用需求,重点对时间调制型傅里叶变换红外光谱成像技术和应用进行了研究。论文的主要研究工作及成果如下:1.对光谱成像技术及其应用现状进行了分类归纳,对不同分光方式的光谱成像技术的发展状况进行了总结,对时间调制傅里叶变换型光谱成像技术的技术特点和研究现状进行了分析和总结。2.系统研究了时间调制傅里叶变换光谱成像技术的基本理论,研究了在时间调制傅里叶变换光谱成像仪在工程实践中面临的相位误差、干涉仪失调和动镜运动均匀性等关键技术。3.提出建立了多光程的分区模型,设计了16程傅里叶变换光谱仪技术方案。建立系统模型并对系统进行了光程差分析,对动镜失调和动、静态横移误差、晃动误差与运动误差等系统误差容限进行了分析研究。4.针对大气探测需求,对16程傅里叶变换光谱仪进行了系统方案设计,并进行了系统仿真。仿真结果验证了方案设计的正确性和技术方案的先进性。5.利用反射转镜式傅里叶变换光谱仪地面样机,开展了大气观测应用研究。设计了大气成分探测方法,建立了大气参数反演数理依据和定量分析算法,进行了高精度大气成分浓度反演。对反射转镜式傅里叶变换光谱仪技术原理进行了研究,总结提出一种针对改进光谱分辨率的光谱仪技术方案,并提出了一种简明有效的像点法以计算光程差的方法。

【Abstract】 Based on the status of domestic spectral imaging technology and the demands ofapplications of atmosphere sounding, this dissertation mainly studies time-resolvedFourier Transform Infrared spectroscopy and its applications. The associated majorresearches and results are stated as the following:1. The spectral imaging technology and its status of applications are classifiedand summarized. The development and trends on different spectral imagingbeam-splitting techniques are classified and summed up. The technical characteristicsand research status of the time-resolved Fourier Transform spectral imagingtechnology are analyzed and summarized.2. The fundamental theory of time-resolved Fourier Transform spectral imagingtechnology is systematical studied. The key techniques including phase error,misalignment of interferometer and non-ideal of velocity in the time-resolved FourierTransform imaging spectrometer are studied.3. Segment-Divided models of multi-pass configurations for interferometer areproposed and established, based on which both the optical principle and thetechnological scheme of a sixteen-pass Fourier Transform Infrared spectrometer areimplemented. A system model is established and the Optical Path Difference (OPD)of the system is analyzed, as well as error tolerances of the system regarding themisalignment of the moving mirror, the dynamic and static lateral errors, the swayerror and velocity error are analyzed and studied.4. For the application of atmospheric sounding, the scheme of the sixteen-passFourier Transform Infrared spectrometer is designed, and the system is simulated. Thesimulated results proof the validity of the system design and the advance of thetechnological scheme.5. The application study for atmosphere observing is performed based on thedesign and development of a reflecting rotating Fourier Transform Infraredspectrometry. The detecting methodology for atmospheric component is devised, andthe mathematical proof and algorithms of quantity analysis for atmosphericparameters retrieving are established, and then the concentrations of atmosphericcomponents are retrieved with highly accuracy. Furthermore, to improve the spectralresolution of the reflecting rotating Fourier Transform Infrared spectrometry, a newtechnological scheme of spectrometry is proposed. Also, a novel method called Point-Image method that using mirror imaging principle and computer simulation tocalculate the OPD is proposed, which is proved feasible and efficient.

  • 【分类号】TH744.1;O438.2
  • 【被引频次】3
  • 【下载频次】784
  • 攻读期成果
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