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窗扫型傅里叶变换成像光谱仪具有高光通量和无动镜等特点,同时也增加了数据处理的难度,需要对采集的原始干涉图进行重组。通过对其数据处理流程特点的分析,设计了一种归一化算法,对由干涉图重组时产生的误差进行了校正,并对在数据采集过程中干涉图的中心暗纹位置的采样误差进行了二次曲线拟合校正。整个数据处理过程实现了从干涉数据立方体到光谱数据立方体的变换。从理论分析和实验结果的比较中验证了误差校正方法的有效性。
Window scan type Fourier transform imaging spectrometer with high luminous flux and no mirror and other characteristics, but also increased the difficulty of data processing, the need to reconstruct the original acquisition of the interference map. Through the analysis of the characteristics of its data processing, a normalization algorithm is designed to correct the error caused by the reorganization of the interferogram, and the sampling error of the position of the center dark line of the interferogram in the data acquisition process Quadratic curve fitting correction. The entire data processing process transforms from the interference data cube to the spectral data cube. The validity of the error correction method is verified from the comparison of theoretical analysis and experimental results.