speckle interferometry

speckle interferometry

noun Astronomy.
a photographic technique for clarifying the telescopic images of a star by taking short exposures of the electronic images of the star's speckle pattern and extrapolating properties of the starlight to create a more accurate composite image.

Origin:
1965–70; interfere + -o- + -metry

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World English Dictionary
speckle interferometry
 
n
astronomy a technique to increase the angular resolution of telescopes that are impaired by atmospheric turbulence, in which the information from a number of exposures of very short duration is combined

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