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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For signals that are bandwidth limited, but not centered at zero, a band-pass filter can be used as an anti-aliasing filter. Peer comments on repliemrnt answer and responses from the answerer.

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

For the moment I prefer NOT to give “my” answer so as replifment to set you off on the wrong track. 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. Digital signal processing Linear filters Electronic filter applications Anti-aliasing. In the case of optical image sampling, as by image sensors in digital camerasthe anti-aliasing filter is also known as an optical low-pass filter OLPFblur filteror AA filter.

Review native language verification fltre submitted by your peers.

French term or phrase: Industrial and Scientific Conference Management, Inc. 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 other non- harmonically related frequencies.

This was also “my” answer and I needed confirmation of someone in the field. 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. Term search Jobs Translators Clients Forums.


Since the theorem states that, unambiguous reconstruction of the signal from its samples is possible when the power of frequencies above the Nyquist frequency is zero, a real anti-aliasing filter trades off between bandwidth and aliasing. Handbook of Image Quality: 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.

Anti-aliasing filter

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”.

Bayer filter cameras, an additional filter is generally needed to reduce aliasing to an acceptable level. View forum View forum without registering on UserVoice.

Anti-Aliasing – [ Traduire cette page ] Filter Basics: Because analog filters have relatively high cost and limited performance, relaxing the demands on the analog filter can greatly reduce both aliasing and cost. Generalizations of the Nyquist—Shannon sampling theorem allow sampling of other band-limited passband signals instead of baseband signals.

If the signal is strong enough, it can cause clipping at the analog-to-digital convertereven after filtering. By using this site, you agree to the Terms of Use and Privacy Policy. If one desired to sample an FM radio broadcast centered at Retrieved from ” https: You can request verification for native languages by completing a simple application that takes only a couple of minutes. The mathematics of sampling in two spatial dimensions is similar to the mathematics of time-domain sampling, but the filter implementation technologies are different.

Anti-aliasing filter – Wikipedia

Retrieved November 29, Furthermore, because some noise is averaged out, the higher sampling rate can moderately improve SNR. The filter works by micro vibrating the sensor element.

Reviewing applications can be fun and only antti a few minutes.

Audio signal processing Digital image processing Speech processing Statistical signal processing. Often, nati anti-aliasing filter is a low-pass filter ; this is not a requirement, however. 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.


Term search All of ProZ. Still, when you’re bang on, you’re bang on and YOU so often are. An anti-aliasing filter is a low-pass filter that accomplishes this. Detection theory Discrete signal Estimation theory Nyquist—Shannon sampling theorem. You should have given confidence of 5: French PRO pts in category: This page replieement last edited on 17 Decemberat The user reoliement turn the vibration on or off, selecting anti-aliasing or no anti-aliasing.

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.

The KudoZ network provides a framework for translators and others to assist each other with translations or explanations of terms and short phrases. In the latter case, the filter prevents imaging, the reverse process of aliasing where in-band frequencies are mirrored out of band. Login or register free and only takes a few minutes to participate in this question. From Wikipedia, the free encyclopedia. Peer comments on this answer and responses from the answerer agree.

By oversampling by 2. Filtr Promote or demote ideas. 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.

Views Read Edit View history. The idea is to use a higher intermediate digital sample rate, so that a nearly ideal digital filter can sharply cut off aliasing near the original low Nyquist frequency and give better phase responsewhile a much simpler analog filter can stop frequencies repliemen the new higher Nyquist frequency.

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