桂林电子科技大学学报2026，Vol.46Issue(2)：134-140,7.DOI:10.16725/j.1673-808X.202459
一种空间外差光谱仪干涉数据的盲元校正算法
A blind-data correction algorithm for interference data of a space heterodyne spectrometer
摘要
Abstract
As a high-resolution spectral analysis technology,spatial heterodyne spectroscopy is widely used in atmospheric detection,satellite remote sensing and related fields because of its ability to obtain ultra-high spectral resolution data.To reduce the blind data in the interference signal obtained by spatial heterodyne spectrometer and improve the accuracy of subsequent spectral reconstruc-tion,a correction method combining sliding-threshold defection and column-window median filtering is proposed.Compared with the principal component analysis algorithm and the average substitution algorithm,the proposed method effectively reduces blind spots in the interferogram while proserving detailed interferogram features,and the reconstructed spectrum is closer to the original signal.The effect of the algorithm is evaluated by using two quantitative analysis indexes,signal-to-noise ratio and mean square er-ror.The results show that,compared with the principal component analysis algorithm and the average substitution algorithm,the sig-nal-to-noise ratio of the reconstructed spectrum increases by 54.8%and 73.2%,respectively,while the MSE decreases by 32.2%and 99.8%,respectively.关键词
空间外差光谱技术/干涉数据/盲元/光谱图/误差修正Key words
spatial heterodyne spectroscopy/interferogram/blind-data/spectrogram/error correction分类
机械制造引用本文复制引用
苗童,叶松,王新强,李树,王方原..一种空间外差光谱仪干涉数据的盲元校正算法[J].桂林电子科技大学学报,2026,46(2):134-140,7.基金项目
国家重点研发计划(2022YFB3901800,2022YFB3901803) （2022YFB3901800,2022YFB3901803）
