User contributions for Bob K
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A user with 6,498 edits. Account created on 16 November 2005.
5 May 2024
- 13:2413:24, 5 May 2024 diff hist +108 Discrete-time Fourier transform →Definition: more consistent use of LaTex
3 May 2024
- 23:2723:27, 3 May 2024 diff hist +317 Discrete-time Fourier transform →Case L=N+1: add a footnote Tag: Visual edit: Switched
2 May 2024
- 21:4521:45, 2 May 2024 diff hist +4 m Discrete-time Fourier transform →{{anchor|DFT}}Sampling the DTFT: change one word
- 16:1816:18, 2 May 2024 diff hist +253 Discrete-time Fourier transform →Case: L = N+1.: move a footnote into section Tag: Visual edit: Switched
30 April 2024
- 12:5512:55, 30 April 2024 diff hist 0 Discrete Fourier transform move a misplaced image. (not really sure where the best place is) Tag: Visual edit: Switched
29 April 2024
- 14:1614:16, 29 April 2024 diff hist −363 Fourier transform →Computation methods: move the most common method to the top of the list; add some clarifications Tag: Visual edit
27 April 2024
- 20:4320:43, 27 April 2024 diff hist +5 m Fourier transform →Analytic integration of closed-form functions: fix WikiLink
- 20:2720:27, 27 April 2024 diff hist +25 Fourier transform →Analytic integration of closed-form functions: Clarify first sentence; i.e. which domain is "Functions that can be expressed as closed-form expressions" talking about.
- 15:3415:34, 27 April 2024 diff hist −1,119 Fourier transform →Computation methods: add a subsection heading; add appropriate references to DTFT; simplify language (e.g. by replacing "Fourier conjugate variable" with "frequency"); utilize other articles (WikiLinks),
14 April 2024
- 15:2615:26, 14 April 2024 diff hist −395 Fourier transform →Unitarity and definition for square integrable functions: Remove a statement that relies on a circular WikiLink; i.e. it simply links back to this article. Tag: Reverted
9 April 2024
- 13:0513:05, 9 April 2024 diff hist +22 Fourier series →Common forms of the Fourier series: add a WikiLink
8 April 2024
- 11:5611:56, 8 April 2024 diff hist +45 Kaiser window →Definition: add a WikiLink current
7 April 2024
- 14:5514:55, 7 April 2024 diff hist +121 Upsampling →Interpolation filter design: simplify a formula
2 April 2024
- 22:4722:47, 2 April 2024 diff hist +2 Frequency linearize the {{references}} section
29 March 2024
- 13:1213:12, 29 March 2024 diff hist +40 Upsampling →Interpolation filter design: Improve one sentence.
25 March 2024
- 20:1620:16, 25 March 2024 diff hist 0 m Upsampling →Interpolation filter design: svg image replaced by pdf, because svg shows a dashed line as solid
- 12:5812:58, 25 March 2024 diff hist +74 Impulse response →Mathematical considerations: add Wikilink and an image current
22 March 2024
- 18:5018:50, 22 March 2024 diff hist −1 Z-transform Undid revision 1215005899 by 193.48.49.224 (talk) The meaning is that the normalized frequency w=2 pi is equivalent to the natural frequency f=1/T. Tag: Undo
- 16:0816:08, 22 March 2024 diff hist −475 Upsampling →Interpolation filter design: merge footnote back into main body
- 15:2715:27, 22 March 2024 diff hist +92 Upsampling add a citation Tag: Visual edit: Switched
21 March 2024
- 14:0214:02, 21 March 2024 diff hist +121 Upsampling →Interpolation filter design: improve a footnote
18 March 2024
- 12:3712:37, 18 March 2024 diff hist +218 Normalized frequency (signal processing) add a citation current
16 March 2024
- 12:0212:02, 16 March 2024 diff hist +3 Aliasing unwrap an awkward phrase Tag: Visual edit
11 March 2024
- 13:2513:25, 11 March 2024 diff hist +397 Upsampling add a citation
8 March 2024
- 14:4314:43, 8 March 2024 diff hist +36 Overlap–save method →See also: add WikiLink
- 14:4214:42, 8 March 2024 diff hist +35 Overlap–add method →See also: add WikiLink
- 14:1514:15, 8 March 2024 diff hist +94 Discrete Fourier transform update a citation IAW author's wishes
7 March 2024
- 17:2017:20, 7 March 2024 diff hist −5 Convolution Use ∗ instead of * in {{math}} templates
5 March 2024
- 15:0015:00, 5 March 2024 diff hist +189 Discrete Fourier transform add a footnote Tag: Visual edit: Switched
4 March 2024
- 13:4013:40, 4 March 2024 diff hist −92 Discrete Fourier transform Undid revision 1211763476. The formula Fs/N is derived from the statement that precedes it: "The fundamental frequency is the reciprocal of the fundamental period"... quoting your own reference. So instead of deleting the equivalent statement from Wikipedia, you should find another place for the formula, such as a footnote. Tag: Undo
2 March 2024
- 16:1216:12, 2 March 2024 diff hist +741 Overlap–save method add a citation Tag: Visual edit: Switched
27 February 2024
- 13:2213:22, 27 February 2024 diff hist +71 Window function →Examples of window functions: add a WikiLink
15 February 2024
- 13:4213:42, 15 February 2024 diff hist −2 m Fourier series →Complex-valued functions: match footnote to Eq.6
12 February 2024
- 12:3512:35, 12 February 2024 diff hist −292 Talk:Negative frequency No edit summary current
11 February 2024
- 21:1821:18, 11 February 2024 diff hist −109 Negative frequency →Further reading: delete misleading link, as per talk page
- 21:1621:16, 11 February 2024 diff hist +1,134 Talk:Negative frequency No edit summary
10 February 2024
- 14:1114:11, 10 February 2024 diff hist −60 Upsampling →Interpolation filter design: improve footnote A
9 February 2024
- 21:4421:44, 9 February 2024 diff hist +563 Upsampling →Interpolation filter design: add a footnote
3 February 2024
- 18:5318:53, 3 February 2024 diff hist +14 m Fourier transform →Example: had to add \displaystyle for unknown reason
- 18:1218:12, 3 February 2024 diff hist −2 m Circular convolution →Definitions: typo
- 14:2414:24, 3 February 2024 diff hist +20 Circular convolution →Definitions: use {{Collapse}} template
- 01:1501:15, 3 February 2024 diff hist −477 Upsampling Zero-packing is already covered in reference #4. And Lyons' claim that zero-valued samples create new frequencies (replications) is incorrect (see 2nd graph). Another Lyons error is in https://www.embedded.com/dsp-tricks-building-a-practical-spectrum-analyzer/, where he confuses the WOLA algorithm with over-lap convolution.
- 00:2500:25, 3 February 2024 diff hist −1 m Upsampling →Upsampling by an integer factor: typo
2 February 2024
- 15:2115:21, 2 February 2024 diff hist +363 Upsampling move a footnote into mainstream
1 February 2024
- 11:3311:33, 1 February 2024 diff hist −1 m Nyquist–Shannon sampling theorem →Critical frequency: re-position the image
28 January 2024
- 21:5821:58, 28 January 2024 diff hist −1,834 Negative frequency →Sinusoids: simplified Tag: Visual edit: Switched
- 10:1910:19, 28 January 2024 diff hist +6 m Fourier transform →Negative frequency: add a whitespace
- 10:1510:15, 28 January 2024 diff hist −729 Fourier transform →Negative frequency: simplified Tag: Visual edit: Switched
- 07:3107:31, 28 January 2024 diff hist +21 m Fourier transform →Example: change a couple of words
27 January 2024
- 22:1522:15, 27 January 2024 diff hist −786 Negative frequency Re-simplify the lead, and remove incorrect example. Tag: Visual edit