apodization

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 Today, March 1993

Other words from apodization

apodize \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., Science, 4 Oct. 1985