Filtre anti-repliement (anti-aliasing). Il est inutile et même nuisible d’imposer à un système de TNS des signaux dont les variations seraient plus rapides que ce. French term or phrase: filtre anti-repliement. This term crops up in a text on noise emissions in conjunction with an EU project. The “filter” is part. The categories of this image should be checked. Check them now! Remove redundant categories and try to put this image in the most specific.

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A realizable anti-aliasing filter will typically either permit some aliasing to occur or else attenuate some in-band frequencies close to the Nyquist limit.

Furthermore, because some noise is averaged out, the higher sampling rate can moderately improve SNR. The typical implementation in digital cameras is two layers of birefringent material such as lithium niobatewhich spreads each optical point into a cluster of four points. French PRO pts in category: The user can turn the vibration on or off, selecting anti-aliasing or no anti-aliasing. By using this site, you agree to the Terms of Use viltre Privacy Policy.

File:Filtre anti – Wikimedia Commons

The filter works by micro vibrating the sensor element. The mathematics of sampling in two spatial dimensions is similar to the mathematics of time-domain sampling, but the filter implementation technologies are different. Login or register free and only takes a few minutes to participate replieement this question. When distortion due to clipping occurs after the anti-aliasing filter, it can create components outside the passband of the anti-aliasing filter; these components can then alias, causing the reproduction of repiement non- harmonically related frequencies.

Anti-aliasing filters are commonly used at the input of digital signal processing system’s analog to digital converter ; similar filters are used as reconstruction filters at the output of such systems, for example in music players. For signals that are bandwidth limited, but not centered at zero, a band-pass filter can be used as an anti-aliasing filter.


Anti-Aliasing fltre [ Traduire cette page ] Filter Basics: Audio signal processing Digital image processing Speech processing Statistical signal processing.

Review native language verification applications submitted by your peers. Digital signal processing Linear filters Electronic filter applications Anti-aliasing. Retrieved November 29, Because analog filters have relatively high cost and limited performance, relaxing the demands on the analog filter can greatly reduce both aliasing and cost. For example, this could be done with a single-sideband modulated or frequency modulated signal.

Handbook of Image Quality: Bayer filter cameras, an additional filter is generally needed to reduce aliasing to an acceptable level. Often, an anti-aliasing filter is a low-pass filter ; this is not a requirement, however. The Pentax K-3 from Ricoh introduced a unique sensor-based anti-aliasing filter.

This page was last edited on 17 Decemberat Detection theory Discrete signal Estimation theory Nyquist—Shannon sampling theorem. You will repliemeng have access to many other tools and opportunities designed for those who have language-related jobs or are passionate about them. From Wikipedia, the free encyclopedia. The choice of spot separation for such a filter involves a tradeoff among sharpness, aliasing, and fill factor the ratio of the active refracting area of a microlens array to the total contiguous area occupied by the array.

The “filter” is part of a measuring system made up of displacement transducers, incremental encoders, signal conditioners and a PC which includes 25 Hz dual-input filters that are described as “anti-repliement”.

French term or phrase: It is very important to avoid input signal overload when using an anti-aliasing filter.


WO2011063461A1 – Filtre anti-repliement à deux degrés de liberté – Google Patents

I think I know the answer to this from googling on the web but it would be nice if someone with technical knowledge could confirm. Reviewing applications can be fun and only takes a few minutes. This term crops up in a replkement on noise emissions in conjunction with an EU project.

An anti-aliasing filter AAF is a filter used before a signal sampler to restrict the bandwidth of a signal to approximately or completely satisfy the sampling theorem over the band of interest. View Ideas submitted by the community. In the latter case, the filter prevents imaging, the reverse process replie,ent aliasing where in-band frequencies are mirrored out of band.

Le rôle du filtre anti-aliasing

Term search All of ProZ. You have native languages that can be verified You can request verification for native languages by completing a simple application that takes only a couple of minutes. You can request verification for native languages by completing a simple application that takes only a couple of minutes.

Close and don’t show again Close. The KudoZ network provides a framework for translators and others to assist each other with translations or explanations of terms and short phrases. You should have given confidence of 5: Digital imaging for photographers Fourth ed. Post Your ideas for ProZ. For the moment I prefer NOT xnti give “my” answer so as not to set you off on the wrong track. Return to KudoZ list.

An anti-aliasing filter is a low-pass filter that accomplishes this.