用三重相关法重建湍流中观察到的物体

Signal Recovery and Synthesis III Pub Date : 1900-01-01 DOI:10.1364/srs.1989.wa2

J. Dainty, M. Northcott, G. Ayers

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摘要

自从1970年Labeyrie1发明恒星散斑干涉测量技术以来，已经有许多尝试将其扩展到通过湍流产生衍射限制图像。在散斑干涉测量中，通过窄带滤波器(≈10nm)记录短曝光(≈10ms)图像i(x)，并对图像的平均能谱进行估计，其中i(u)是i(x)的傅里叶变换。

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Reconstruction of Objects Viewed through Turbulence Using the Triple Correlation

Since the invention in 1970 by Labeyrie1 of the technique of stellar speckle interferometry, there have been many attempts to extend it to produce diffraction-limited images through turbulence. In speckle interferometry, short exposure (≈10ms) images i(x) are recorded through a narrowband filter (≈10nm) and an estimate is made of the average energy spectrum <|I(u)|2> of the image, where I(u) is the Fourier transform of i(x).

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Signal Recovery and Synthesis III

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