Glossary entry (derived from question below)
English term or phrase:
aliasing
Polish translation:
aliasing
Dec 26, 2008 18:54
15 yrs ago
3 viewers *
English term
aliasing
GBK
English to Polish
Tech/Engineering
Telecom(munications)
Definition from
ATIS Telecom Glossary 2007:
In any technology or process involving (a) sampling a signal, e.g., an electrical signal or (a series of images of) a moving subject; (b) processing, storing, or transmitting representations of the samples; and (c) replicating the original signal from the representations: the production of artifacts as a result of sampling at intervals too great to permit faithful replication of the original signal.
Example sentences:
Digital alias-free signal processing (DASP) is a technique for overcoming the problems of aliasing at extended frequency ranges. Based on non-uniform or randomised sampling techniques and the development of novel algorithms, it creates the capacity to suppress potential aliasing crucial for high frequency applications and to reduce the complexity of designs. (Wiley)
An example of aliasing can be seen in old movies, especially when watching wagon wheels on old Western films. Recall that occasionally the wheels appeared as if they going in reverse, even as the wagon would speed up. This phenomenon occurs as the rate of the wagon wheel's spokes spinning approaches the rate of the sampler (the camera operating at about 30 frames per second). (National Instruments)
The term aliasing refers to the distortion that occurs when a continuous time signal has frequencies larger than half of the sampling rate. The process of aliasing describes the phenomenon in which components of the signal at high frequencies are mistaken for components at lower frequencies. (Sampling and Aliasing)
Proposed translations
(Polish)
5 +2 | aliasing | Konrad Bojar |
Change log
Dec 26, 2008 18:37: changed "Kudoz queue" from "In queue" to "Public"
Dec 26, 2008 18:54: changed "Stage" from "Preparation" to "Submission"
Dec 29, 2008 19:54: changed "Stage" from "Submission" to "Selection"
Dec 29, 2008 20:54: changed "Stage" from "Selection" to "Completion"
Proposed translations
+2
3 hrs
Selected
aliasing
Definition from
own experience or research:
Efekt wynikający ze zbyt niskiej częstotliwości próbkowania (patrz tw. Shannona i częstotliwość Nyquista). Pojecie to jest wyjaśnione w każdej porządnej książce do przetwarzania sygnałów, np. Oppenheim, Shafer, "Cyfrowe przetwarzanie sygnałów" albo Szabatin, "Podstawy teorii sygnałów".
Example sentences:
Jednak w przypadku modyfikacji stosunków amplitud składowych częstotliwościowych sygnału, a to jest istotą filtracji sygnału, jest też źródłem aliasingu. (Baza polskich publikacji naukowych)
Dla uniknięcia zjawiska aliasingu częstotliwość próbkowania fs powinna spełniać warunek Nyquista fs > 2 K f1. (Czasopismo "Pomiary Automatyka Robotyka")
Peer comment(s):
agree |
Jolanta Kasprzak-Sliwinska
1 day 15 hrs
|
agree |
tebama
: tak, aliasing = aliasing nie ma potrzeby szukać innych określeń
2 days 22 hrs
|
4 KudoZ points awarded for this answer.
Discussion