液晶与显示2017，Vol.32Issue(5)：387-393,7.DOI:10.3788/YJYXS20173205.0387
星载紫外环形光谱仪科学数据处理的设计与实现
Design and realization of data processing ofsatellite-borne ultraviolet annular imager
吴伟平 1孙海江1
作者信息
- 1. 中国科学院 长春光学精密机械与物理研究所,吉林 长春 130033
- 折叠
摘要
Abstract
In order to convert the original data of the ultraviolet annular imager to the brightness data quickly,the ultraviolet data processing system of the ultraviolet annular imager is established.The system adopts the document view architecture to process the data-flow to ensure no interference between data channels.The noise of detector is corrected by the mean value of dark pixels, and the proportion method is used for converting the pixel values under the standard integral time and gain conditions;the pixel values are converted to luminance brightness with the spectral integral method without restriction that the channel spectral response function must meet Gaussian function, and provide the relative standard deviation statistics of the specified region as a rapid judgment of image conversion.The experimental results show that, only in 352 s, the system can process the 2.19 GB image data product by ultraviolet annular imager in 987 s with our test conditions, and convert 4.96 GB brightness data with the precision of 10-7 lm.The system can provide the standard lines with pixel level precision alignment, and can extract the standard spectral line.The system provides a fast and accurate data link interface between the satellite and the user, which ensures the accuracy and effectiveness of the data retrieval.关键词
紫外光谱/光谱积分法/暗噪声/环形光谱仪/数据处理Key words
ultraviolet spectrum/method of spectrum integral/dark noise/ultraviolet annular imager/data process分类
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吴伟平,孙海江..星载紫外环形光谱仪科学数据处理的设计与实现[J].液晶与显示,2017,32(5):387-393,7.
