基于DMD的并行压缩感知时域关联成像

Parallel compressed temporal ghost imaging based on DMD

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.