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Decimation. Etching by William Hogarth in Beaver's Roman Military Punishments (1725). In the military of ancient Rome, decimation (from Latin decimatio 'removal of a tenth' [1]) was a form of military discipline in which every tenth man in a group was executed by members of his cohort.
Decimation, Decimate, or variants may refer to: Decimation (punishment), punitive discipline; Decimation (signal processing), reduction of digital signal's sampling rate;
In digital signal processing, downsampling, compression, and decimation are terms associated with the process of resampling in a multi-rate digital signal processing system. Both downsampling and decimation can be synonymous with compression , or they can describe an entire process of bandwidth reduction ( filtering ) and sample-rate reduction.
"Decimation" is a storyline published by Marvel Comics in 2005, spinning out of the events of the House of M limited series. The event started with a one-shot issue and took place in a number of various series all carrying the "Decimation" logo on the cover.
is the decimation or interpolation ratio, M {\displaystyle M} is the number of samples per stage (usually 1 but sometimes 2), and N {\displaystyle N} is the order: the number of comb-integrator pairs.
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In signal processing, oversampling is the process of sampling a signal at a sampling frequency significantly higher than the Nyquist rate.Theoretically, a bandwidth-limited signal can be perfectly reconstructed if sampled at the Nyquist rate or above it.
Upsampling requires a lowpass filter after increasing the data rate, and downsampling requires a lowpass filter before decimation. Therefore, both operations can be accomplished by a single filter with the lower of the two cutoff frequencies.