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.

Author: Grodal Net
Country: Costa Rica
Language: English (Spanish)
Genre: Automotive
Published (Last): 10 April 2008
Pages: 422
PDF File Size: 1.14 Mb
ePub File Size: 8.27 Mb
ISBN: 897-6-47052-306-8
Downloads: 72160
Price: Free* [*Free Regsitration Required]
Uploader: Maramar

For the moment I prefer NOT to give “my” answer so as not to set giltre off on the wrong track. 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

Generalizations of the Nyquist—Shannon sampling theorem allow sampling of other band-limited passband signals instead of baseband signals. Vote Promote or demote ideas. Audio signal processing Digital image processing Speech processing Statistical signal processing.

Close and don’t show again Close. View forum View forum repliemrnt registering on UserVoice.

Participation is free and the site has a strict confidentiality policy. If the signal is strong enough, it can cause clipping at the analog-to-digital convertereven after filtering.


Patents, Trademarks, Copyright Law: Digital signal processing Linear filters Electronic filter applications Anti-aliasing. 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. Grading comment 4 KudoZ points were awarded for this answer. Often, an anti-aliasing filter is a low-pass filter ; this is not a requirement, however.

Anti-Aliasing – [ Traduire cette page ] Filter Basics: Retrieved November 29, A realizable anti-aliasing filter will typically either permit some aliasing to occur or repkiement attenuate some in-band frequencies close to the Nyquist limit.

How does one select the right filter? French PRO pts in category: 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 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.

Le rôle du filtre anti-aliasing

You can request verification for native languages by completing a simple application that takes only a couple of minutes.


Because analog filters have relatively high cost and limited performance, relaxing the demands on the analog filter can greatly reduce both aliasing and cost. Term search All of ProZ.

Review native language verification applications submitted by your peers. Return to KudoZ list. Post Your ideas for 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. Digital imaging for photographers Fourth ed. Views Read Edit View history.

If one desired to sample an FM radio broadcast centered at 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.

Industrial and Scientific Conference Management, Inc. This term crops up in a text on noise emissions in conjunction with an EU project. For example, this could be done with a single-sideband modulated or frequency modulated filre.