File:Spectral effects of decimation.svg
Original file (SVG file, nominally 1,012 × 675 pixels, file size: 95 KB)
Captions
Summary
[edit]DescriptionSpectral effects of decimation.svg |
English: These graphs depict the spectral distributions of an oversampled function and the same function sampled at 1/3 the original rate. The bandwidth, B, in this example is just small enough that the slower sampling does not cause overlap (aliasing). Sometimes, a sampled function is resampled at a lower rate by keeping only every Mth sample and discarding the others, commonly called "decimation". Potential aliasing is prevented by lowpass-filtering the samples before decimation. The maximum filter bandwidth is tabulated in the bandwidth units used by the common filter design applications. |
|||
Date | ||||
Source | Own work. These graphs correspond to the top and bottom graphs of Harris[1], Figure 2.10 | |||
Author | Bob K | |||
Permission (Reusing this file) |
I, the copyright holder of this work, hereby publish it under the following license:
|
|||
Other versions |
This file was derived from: Spectral effects of decimation.pdf |
|||
SVG development InfoField | This W3C-invalid vector image was created with LibreOffice. |
|||
References InfoField |
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 15:52, 8 January 2020 | 1,012 × 675 (95 KB) | Bob K (talk | contribs) | change B to 0.5/MT | |
00:20, 8 January 2020 | 1,012 × 675 (94 KB) | Bob K (talk | contribs) | re-label axis of 2nd graph | ||
18:03, 3 January 2020 | 1,012 × 675 (71 KB) | Bob K (talk | contribs) | trying to find an ω character that renders correctly | ||
17:22, 3 January 2020 | 1,012 × 675 (70 KB) | Bob K (talk | contribs) | replace a version of character π that doesn't render correctly in svg | ||
16:26, 3 January 2020 | 1,012 × 675 (71 KB) | Bob K (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
File usage on other wikis
The following other wikis use this file:
- Usage on ca.wikipedia.org
- Usage on en.wikipedia.org
- Usage on es.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Width | 285.75mm |
---|---|
Height | 190.5mm |