apodization

play
noun ap·o·di·za·tion \ˌa-pə-də-ˈzā-shən, -ˌdī-ˈzā-\

Definition of apodization

electrical engineering

  1. :  the process of altering a signal (such as one emitted by an electrical sensor) to make its mathematical description smoother and more easily manipulatable The system also implements a standard suite of spectral estimation algorithms. The user can … use apodization with different weighting functions or compensate for distortions arising from equal data spacing. — Physics Today, March 1993

apodize

\ˈa-pə-ˌdīz\ play transitive verb,

apodizes

;

apodized

;

apodizing

Amplitude and phase errors tend to increase at high spatial frequencies, so we weighted the data with a function that is 1 at a frequency of 0 and falls to 0 at a spatial frequency of 2.8 cycles per arc second. A similar function was used to apodize the visibilities before reconstructing the images. — R. R. Howell et al., Science, 4 Oct. 1985

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Origin and Etymology of apodization

borrowed from French apodisation, from a- 2a- + pod- pod- (alluding to the pieds “feet” produced by diffraction in an optical image) + -isation -ization


First Known Use: 1964


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