非相干照明单像素检测傅里叶频谱  

Single Pixel Detection of Fourier Spectrum with Incoherent Illumination

作　　者：胡佳慧 郑焕玲 翁嘉文 杨初平 HU Jiahui;ZHENG Huanling;WENG Jiawen;YANG Chuping(College of Electronic Engineering,South China Agricultural University,Guangzhou 510640,China)

机构地区：[1]华南农业大学电子工程学院,广东广州510640

出　　处：《大学物理实验》2023年第3期31-35,共5页Physical Experiment of College

基　　金：华南农业大学质量工程项目(zlgc22032)。

摘　　要：为了实现傅里叶频谱测量,提出利用非相干照明结合单像素探测实现窗口函数傅里叶变换的频谱测量方法。首先,采用四步相移条纹投影,导出单像素探测频谱重构与窗口函数傅里叶变换频谱的关系,然后对三种窗口函数包括圆孔函数、矩形孔函数和矩形透射光栅的频谱进行测量。结果显示,该方法可以实现窗口函数的傅里叶频谱测量,为傅里叶变换频谱提供一种新的光学测量方法。In order to realize Fourier spectrum measurement,a spectrum measurement method of window function Fourier transform using incoherent illumination and single pixel detection is proposed.First,the relationship between single pixel detection spectrum reconstruction and window function Fourier transform spectrum is derived by using four step phase-shift fringe projection.Then the spectrum of three window functions,including circular function,rectangular function and rectangular transmission grating,are measured.The results show that this method can realize the measurement of the Fourier spectrum of window functions and provide a new optical measurement method for the Fourier transform spectrum.

关 键 词：计算成像 傅里叶频谱 窗口函数 单像素探测 

分 类 号：O436[机械工程—光学工程]