基于DMD的并行压缩感知时域关联成像  

Parallel compressed temporal ghost imaging based on DMD

作　　者：贾家瑞 姚旭日 JIA Jiarui;YAO Xuri(School of Physics,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学物理学院,北京100081

出　　处：《光学技术》2024年第3期294-297,共4页Optical Technique

摘　　要：针对非周期时变光信号的高速探测问题,文章提出一种并行压缩感知和时域关联成像相结合的测量方法,同时借助空间光调制器DMD高速调制能力,可在探测器单次曝光时间内恢复快速时变信号,对非周期性快速时变信号具有良好的恢复效果。通过实验验证,方法可恢复频率1kHz的时变信号,并且具有很高的信噪比。A measurement method that combines parallel compressed sensing and temporal ghost imaging for the high-speed detection of non-periodic time-varying light signals is proposed.With the help of the high-speed modulation ability of the spatial light modulator DMD,the fast time-varying signal can be recovered within a single exposure time of the detector,with good recovery effect for non-periodic fast time-varying signals.Through experimental verification,this method can recover time-varying signals with a frequency of 1kHz and has a high signal-to-noise ratio.

关 键 词：DMD 并行压缩感知 时域关联成像 

分 类 号：TP394.1[自动化与计算机技术—计算机应用技术] TH691.9[自动化与计算机技术—计算机科学与技术]