apodization

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

Definition of apodization

electrical engineering
: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 TodayMarch 1993

apodize

play \ˈa-pə-ˌdīz\ 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.Science4 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


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