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[1] [2] When the process is performed on a sequence of samples of a signal or a continuous function, it produces an approximation of the sequence that would have been obtained by sampling the signal at a lower rate (or density, as in the case of a photograph). Decimation is a term that historically means the removal of every tenth one.
In digital signal processing, a cascaded integrator–comb (CIC) is a computationally efficient class of low-pass finite impulse response (FIR) filter that chains N number of integrator and comb filter pairs (where N is the filter's order) to form a decimator or interpolator.
In this way the resulting multirate system would be a time varying linear phase filter via the decimator and interpolator. This process is explained in block diagram form where Figure 2 (a) is replaced by Figure 2(b). The lowpass filter consists of two polyphase filters, one for the decimator and one for the interpolator. [2]
In signal processing, a digital biquad filter is a second order recursive linear filter, containing two poles and two zeros. "Biquad" is an abbreviation of "biquadratic", which refers to the fact that in the Z domain, its transfer function is the ratio of two quadratic functions:
Decimator (Farscape), a fictional race in the TV series Farscape; Decimator (G.I. Joe), a fictional character in the G.I. Joe: A Real American Hero series; Decimator (signal processing), a component that reduces a digital signal's sampling-rate; Decimator (Star Wars), a fictional weapon in the game Star Wars: Galactic Battlegrounds
[1] [2] The project attracts graduates and students interested in mathematics and computer programming. Since its creation in 2001 by Colin Hughes, Project Euler has gained notability and popularity worldwide. [3] It includes 923 problems as of December 22 2024, [4] with a new one added approximately every week. [5]
In the field of geodesy, Receiver Independent Exchange Format (RINEX) is a data interchange format for raw satellite navigation system data. This allows the user to post-process the received data to produce a more accurate result — usually with other data unknown to the original receiver, such as better models of the atmospheric conditions at time of measurement.
Some slide/bottleneck guitarists omit the bottom E string when playing in open G to have the root note as the tonic. This tuning is used by Keith Richards. Open E ♭ 5 tuning – E ♭-B ♭-e ♭-b ♭-e ♭ ' This is achieved by removing the fourth (G) string, tuning both Es and the B down a half step, and the A and D strings up a half-step.