Calibration algorithm for Fourier transform spectrometer with thermal instabilities

Simon Turbide; Tracy Smithson

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Calibration algorithm for Fourier transform spectrometer with thermal instabilities

机译：热不稳定性傅里叶变换光谱仪的标定算法

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Complex domain calibration is an efficient method to correct the amplitude and phase of a spectrum obtained from a Fourier transform spectrometer. This method is, however, not directly applicable in the occurrence of a zero path difference (ZPD) shift between a scene interferogram and calibration blackbody interferograms. This situation is likely to happen for a system with thermal instabilities. It is found that a ZPD shift smaller than 1 sampling point can cause a large disagreement between the spectra evaluated from the two interferometer sweep directions. We have developed an algorithm for a complex calibration in the presence of ZPD shifts. The restricting aspect of the real-time capability is taken into account.

机译：复数域校准是校正从傅立叶变换光谱仪获得的光谱的振幅和相位的有效方法。但是，该方法不适用于场景干涉图和校准黑体干涉图之间的零路径差（ZPD）偏移的发生。对于具有热不稳定性的系统，很可能会发生这种情况。发现小于1个采样点的ZPD偏移会导致从两个干涉仪扫描方向评估的光谱之间出现较大的分歧。我们已经开发了一种在ZPD偏移存在时进行复杂校准的算法。考虑到实时能力的限制方面。

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《Applied optics》 |2010年第17期|共7页
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Simon Turbide; Tracy Smithson;
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1. Calibration algorithm for Fourier transform spectrometer with thermal instabilities [J] . Simon Turbide, Tracy Smithson Applied optics . 2010,第17期

机译：热不稳定性傅里叶变换光谱仪的标定算法
2. Simulation and calibration of a compact millimeter-wavelength Fourier transform spectrometer [J] . Liu Mira, Pan Zhaodi, Thakur Ritoban Basu, Applied optics . 2020,第25期

机译：小型毫米波长傅里叶变换谱仪的仿真与校准
3. Calibration of a Fourier transform spectrometer using its internal lamp as a reference source [J] . Measurement Science & Technology . 2020,第6期

机译：使用内部灯作为参考源的傅立叶变换光谱仪校准
4. Compact calibration source for thermal infrared Fourier-transform spectrometer [C] . Alexey Shakun, Fedor Martynovich, Nikolay Ignatiev, Infrared Remote Sensing and Instrumentation . 2019

机译：热红外傅立叶变换光谱仪的紧凑型校准源
5. Data compression algorithms for the geosynchronous imaging Fourier transform spectrometer. [D] . Cantwell, Gregory W. 2003

机译：地球同步成像傅里叶变换光谱仪的数据压缩算法。
6. Comparison of Benchtop Fourier-Transform (FT) and Portable Grating Scanning Spectrometers for Determination of Total Soluble Solid Contents in Single Grape Berry (Vitis vinifera L.) and Calibration Transfer [O] . Hui Xiao, Ke Sun, Ye Sun, 2017

机译：台式傅立叶变换（FT）和便携式光栅扫描光谱仪在单葡萄浆果（Vitis vinifera L.）中总可溶性固形物含量测定和校准转移的比较
7. Compact calibration source for thermal infrared Fourier-transform spectrometer [O] . Alexey Shakun, Fedor Martynovich, Nikolay Ignatiev, 2019

机译：热红外傅立叶变换光谱仪的紧凑型校准源
8. Comparison of Arithmetic Requirements for the PFA (Prime Factor Algorithm), WFTA (Winograd Fourier Transform Algorithm), SWIFT, MFFT (Mixed Radix Fast Fourier Transform), FFT (Fast Fourier Transform) and DFT (Discrete Fourier Transform) Algorithms. [R] . Hicks, R. C. 1982

机译：pFa（素因子算法），WFTa（Winograd傅立叶变换算法），sWIFT，mFFT（混合基线快速傅里叶变换），FFT（快速傅立叶变换）和DFT（离散傅立叶变换）算法的算术要求的比较。

Calibration algorithm for Fourier transform spectrometer with thermal instabilities

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