摘要干涉成像光谱技术是当代成像技术和光谱技术的有机结合。通过干涉成像光谱技术可以获得目标的二维空间信息和一维光谱信息。本文首先介绍了干涉成像光谱技术的发展和研究现状,并系统的阐述了干涉成像光谱理论,介绍了三种类型干涉成像光谱仪及其优缺点。本文重点是研究高通量型干涉成像光谱仪的光谱复原方法。阐明了干涉成像光谱复原理论技术中光谱信息和干涉信息之间的对应关系,研究了干涉信号处理过程中的对偶处理、去趋势项、切趾、相位校正等具体问题。利用已有实验装置采集干涉图像,在算法研究的基础上,编写MATLAB程序来对干涉图进行计算,复原得到光谱信息,并分析了结果。60125
毕业论文关键词 干涉成像光谱技术 高通量 共轭对称化 傅里叶变换
毕业设计说明书(论文)外文摘要
Title Research on the recovery method of interferometric imaging spectrometry
Abstract Interference imaging spectrum technology is the organic integrationof modern imaging technology and spectroscopy technology. People can obtain
target two-dimensional space information and one dimensional spectrum information by interference imaging spectrum technology. This paper first introduces the interference research and development of the interference imaging spectrum technology, and then systematically expound on the theory of interference imaging spectrum. introduction the advantages and disadvantages of the three kinds of interference imaging spectrometers. This article focuses on the spectrum recovery of the high etendue interference imaging spectrum technology.We clarify the theory of interference imaging spectrum recovery. To collected interferogram we make removal of trend items, apodizatin filter, phase correction and conjugate symmetric treatment, then obtain the spectrum by inverse Fourier transform. On the basis of the algorithm research, I write a MATLAB program to calculate the interference patterns ,and analyze the experimental results.
Keywords Interference imaging spectrometer technology High etendue Conjugate symmetrization Fourier transform
1 绪论 1
1.1课题研究背景 1
1.2干涉成像光谱技术的发展 1
1.3本文的主要研究内容 2
2 干涉成像光谱技术 4
2.1 干涉成像光谱理论 4
2.1.1 干涉仪与干涉图 4
2.1.2 干涉信息与光谱信息对应关系 5
2.2 干涉成像光谱仪 6
2.2.1 时间调制型 7
2.2.2 空间调制型 8
2.2.3 时空混合调制型 9
3 干涉成像光谱复原理论 12
3.1 去趋势项 12
3.2 切趾滤波 13
3.2.1 切趾函数的选取原则 14
3.2.2 三角窗函数及其它切趾函数 14
3.3 相位校正 18
3.4 共轭对称化和傅里叶变换计算 19
3.5 高通量型干涉成像光谱仪的干涉信息的提取 21
4 实验及数据处理 24
4.1 光谱复原流程图 干涉成像光谱复原方法研究:http://www.youerw.com/wuli/lunwen_65497.html