Xiangli Bin, Lü Qun-bo, Yuan Yan, Huang Min, Zhou Jin-song, Zhang Gui-feng
Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100093, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2012 Apr;32(4):1137-41.
When the large aperture static imaging spectrometry (LASIS) was used in spaceborne remote sensing, the spectrum could not be well recovered from the interferogram with detector lateral fringe error. In order to obtain the more accurate spectrum, the error must be corrected. According to the imaging principle analysis of LASIS, the imaging model with lateral fringe error was given, and the error correction method was presented. Finally, the error correction method was validated with the data acquired by LASIS system. The results indicated that the error was commendably corrected by the method mentioned above, and the accuracy of recovered spectrum was evidently improved.
当大孔径静态成像光谱仪（LASIS）用于星载遥感时，由于探测器横向条纹误差，干涉图无法很好地恢复光谱。为了获得更准确的光谱，必须对该误差进行校正。通过对LASIS成像原理的分析，给出了存在横向条纹误差的成像模型，并提出了误差校正方法。最后，利用LASIS系统采集的数据对误差校正方法进行了验证。结果表明，上述方法能很好地校正误差，明显提高了恢复光谱的精度。
