基于统一计算设备架构的干涉成像光谱快速反演技术研究  

Fast inversion techniques of inteferogram imaging spectrum based on CUDA

作　　者：李宇[1] 高教波[1] 孟合民[1] 张磊[1] 张茗璇[1] 

机构地区：[1]西安应用光学研究所,陕西西安710065

出　　处：《应用光学》2014年第3期414-419,共6页Journal of Applied Optics

基　　金：十二五预研项目

摘　　要：在基于干涉光谱成像的气体成分实时遥测应用中,为了对推扫获取的原始干涉数据进行快速、有效的反演处理,提出一种结合计算统一设备架构(CUDA)的并行时空混合调制型长波红外干涉光谱反演算法。通过分析自主研制的时空混合调制型干涉光谱仪的数据获取模式,结合CUDA平台实现了并行反演算法。实验结果表明,基于CUDA平台的并行计算技术比仅使用CPU进行计算在效率上提升了5至20倍,为后期进一步做光谱识别打下了基础。In the realtime remote sensing of gas based on inteferogram imaging ,fast inversion processing of original data is required .But the data acquired in this way is a large quantity ,and the inverse algorithm is also complicated w hile using CPU for processing is time-consuming .A parallel inversion algorithm using compute unified device architecture (CUDA) was realized by analyzing the patten of data obtained by time-space mix-modulation long-wave infrared interfer-ence spectrometer .The results show that the parallel computing technique using CUDA can enhance the efficiency of spectrum inversion by 5 to 20 times ,w hich provides foundations for further application like spectral recognition .

关 键 词：长波红外干涉光谱 快速反演 时空混合调制 CUDA 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]