Selection of Interpolation Methods Used to Mitigate Spectral Misregistration of Imaging Spectrometers

	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.; Feng Y. T.
	2011
发表期刊	Spectroscopy and Spectral Analysis
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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