speckle interferometry

American  

noun

Astronomy.

1. 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.

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speckle interferometry British  

noun

1. 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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Etymology

Origin of speckle interferometry

First recorded in 1965–70; interfere + -o- + -metry

Example Sentences

A key ingredient in the work of Ghez and Genzel has been the application of speckle interferometry and then adaptive optics to compensate for atmospheric distortion.

From Science Magazine

The sighting of VB 8B was made using a technique known as speckle interferometry, which eliminates most of the distortion that the earth's atmosphere causes to the faint emissions of light from so distant a body.

From Time Magazine Archive