Effect of apodization on the retrieval of geophysical parameters from fourier-transform spectrometers.
Effect of apodization on the retrieval of geophysical parameters from fourier-transform spectrometers.
复制标题
变迹对傅里叶变换光谱仪地球物理参数反演的影响。
作者：
U. Amato;D. De Canditiis;C. Serio
从傅里叶变换光谱仪记录的红外辐射反演地球物理参数的变迹效应的问题已被解析和数值解决。利用一个矩阵表示的切趾，我们首先推导出一个一般的分析表达式的切趾协方差矩阵，然后表明，切趾，当应用得当，检索没有影响。该方法已被应用于调查的红外大气探测干涉仪目前正在开发中的法国航天局的实验室高斯切趾的效果。
The problem of the effect of apodization on the retrieval of geophysical parameters from infrared radiances recorded by Fourier transform spectrometers has been analytically and numerically addressed. Exploiting a matrix representation of apodization, we first derive a general analytical expression for the apodized covariance matrix and then show that apodization, when properly applied, has no effect on retrievals. The methodology has been applied to investigate the effect of Gaussian apodization on the Infrared Atmospheric Sounding Interferometer currently under development at the laboratories of the French Space Agency.