Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Selection of Interpolation Methods Used to Mitigate Spectral Misregistration of Imaging Spectrometers | |
其他题名 | 论文其他题名 |
Chen X.; Xiang Y.![]() | |
2011 | |
发表期刊 | Spectroscopy and Spectral Analysis
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ISSN | 1000-0593 |
卷号 | 31期号:4页码:1147-1150 |
摘要 | Spectral curvature destroys the co-registration of the spectra measured by dispersion imaging spectrometer. Using interpolation to re-sample the measured spectra at the non-offset mid-wavelengths can mitigate the spectral misregistration. It is very important to select an optimum interpolation method. The performances of six common interpolation methods are evaluated by comparing the residual errors in the corrected spectral radiance. The results indicate that, four-point cubic Lagrange interpolation and cubic spline interpolation are better than other four interpolation methods (linear Interpolation, three points quadratic polynomial interpolation, five points four-order Lagrange interpolation and cubic Hermite interpolation). For spectral offset of 10% Delta lambda(Delta lambda=5 nm), the normalized errors in measured spectral radiance is PV=0. 06, that is reduced to PV<0. 022 after interpolation with cubic Lagrange interpolation or cubic spline interpolation, but for other four methods they are PV> 0. 035. Furthermore, for lower spectral resolution (Delta lambda>5 nm), cubic Lagrange interpolation is a little better than cubic spline interpolation; while for higher spectral resolution (Delta lambda<5 nm), cubic spline interpolation is a little better. |
收录类别 | SCI |
语种 | 中文 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/25571 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Chen X.,Xiang Y.,Feng Y. T.. Selection of Interpolation Methods Used to Mitigate Spectral Misregistration of Imaging Spectrometers[J]. Spectroscopy and Spectral Analysis,2011,31(4):1147-1150. |
APA | Chen X.,Xiang Y.,&Feng Y. T..(2011).Selection of Interpolation Methods Used to Mitigate Spectral Misregistration of Imaging Spectrometers.Spectroscopy and Spectral Analysis,31(4),1147-1150. |
MLA | Chen X.,et al."Selection of Interpolation Methods Used to Mitigate Spectral Misregistration of Imaging Spectrometers".Spectroscopy and Spectral Analysis 31.4(2011):1147-1150. |
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