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本文介绍了傅里叶望远术成像的基本原理,为验证傅里叶望远术成像原理,在实验室中搭建了四光束的傅里叶望远术验证成像系统,对灰度透射式目标进行成像验证,利用LabVIEW软件完成了实验中相关控制软件、检测软件和信号处理软件程序设计。通过形成不同空间频率的干涉条纹提取目标的频谱值,利用相位闭合技术,消除与图像无关的相位因子,提取目标图像的一维和二维频谱图进行图像重构,得到了目标的重构图像,最后分析了影响成像质量的因素。
In order to verify the principle of Fourier telescopic imaging, a four-beam Fourier telescopic verification imaging system is set up in the laboratory and the gray-scale transmissive target is validated by using LabVIEW Software to complete the experimental control software, testing software and signal processing software program design. Through the formation of the interference fringes with different spatial frequencies, the target spectral values are extracted, the phase-closure technique is used to eliminate phase-independent factors and the one-dimensional and two-dimensional spectra of the target image are extracted for image reconstruction. The reconstructed image of the target is obtained, Finally, the factors affecting the imaging quality are analyzed.