User contributions for El pak
A user with 90 edits. Account created on 11 May 2006.
7 July 2021
- 16:3616:36, 7 July 2021 diff hist 0 Talk:Ellipsoid →Incomplete statement in the "As a quadric" section
- 16:3516:35, 7 July 2021 diff hist +205 Talk:Ellipsoid →Incomplete statement in the "As a quadric" section
1 July 2021
- 16:5616:56, 1 July 2021 diff hist +2,526 Talk:Ellipsoid No edit summary
27 November 2019
- 18:1118:11, 27 November 2019 diff hist +589 Buckingham π theorem Added a 3 sentence intuitive explanation taken directly from https://en.wikipedia.org/wiki/Dimensionless_quantity which in my opinion gives lot of insight for someone unfamiliar with formal mathematics
2 November 2015
- 14:4214:42, 2 November 2015 diff hist +267 N User:El pak/sandbox ←Created page with '{{User sandbox}} <!-- EDIT BELOW THIS LINE --> == "Rough Paper" for me to scribble things up == <math>\frac{1}{n}</math> <--> \frac{1}{n} <math>\sum_{j=0}^{...' current
3 September 2014
- 15:0015:00, 3 September 2014 diff hist +270 User talk:El pak →Messages
- 14:4414:44, 3 September 2014 diff hist +143 m Pierre-Simon Laplace →Quotations: Reading "The system of the world" I came upon the quote that I added. I added it because it conveys the same thing as the preceding quote in the wiki, but (in my opinion) in a more beautyful and succint way
30 August 2012
28 November 2011
- 20:0420:04, 28 November 2011 diff hist 0 m Stereoscopy Modified layout of pictures
- 18:5818:58, 28 November 2011 diff hist +81 Stereoscopy Added stereo picture of Manhattan (hyperstereo section)
- 18:5718:57, 28 November 2011 diff hist −81 Stereoscopy Added stereo picture of Manhattan (hyperstereo section)
- 18:5718:57, 28 November 2011 diff hist +81 Stereoscopy Added stereo picture of Manhattan (hyperstereo section)
27 August 2009
24 April 2009
13 April 2009
- 23:1423:14, 13 April 2009 diff hist 0 m Visible spectrum Moved "Newton's color circle" one paragraph up, to improve the layout which was highly aesthetical (ith a typical resolution of 1680)
8 April 2009
- 15:1615:16, 8 April 2009 diff hist +135 Visible spectrum →Spectral colors: I added a frequency column to the table, rounded to the nearest THz unit. Do you agree that it could be useful?
5 February 2009
19 January 2008
- 01:0501:05, 19 January 2008 diff hist +23 Orbit →See also: Added "Orbital Elements"
- 01:0001:00, 19 January 2008 diff hist −22 User talk:El pak →Messages
- 01:0001:00, 19 January 2008 diff hist −890 User talk:El pak →License tagging for Image:Received message.jpg
15 January 2008
- 01:5701:57, 15 January 2008 diff hist 0 m Matched filter Corrected the sequence (which has changed)
- 01:5401:54, 15 January 2008 diff hist +13 Matched filter New images (better scaled now) and explanation shows simpler NRZ code and a less exaggerated noise power for the AWGN channel (I repeated the simulations, so that this time the SNR is known to be 3dB)
9 December 2007
- 19:4519:45, 9 December 2007 diff hist +31 m File:GPS-orbits-stereo.jpg →Summary
- 19:4519:45, 9 December 2007 diff hist +30 m Talk:Global Positioning System →Suggestion of animated gif showing satellites in orbit
- 19:4219:42, 9 December 2007 diff hist +7 Talk:Global Positioning System →Suggestion of animated gif showing satellites in orbit
- 19:3419:34, 9 December 2007 diff hist +1,209 Talk:Global Positioning System →Suggestion of animated gif showing satellites in orbit
- 19:2819:28, 9 December 2007 diff hist +462 N File:GPS-orbits-stereo.jpg A stereoscopic representation of the original design of the GPS space segment, with 24 GPS satellites (4 satellites in each of 6 orbits). The parameters used to simulate the orbits are: eccentricity e = 0.05,
- 19:1419:14, 9 December 2007 diff hist +218 Talk:Global Positioning System →Suggestion of animated gif showing satellites in orbit
- 18:0318:03, 9 December 2007 diff hist +6 Global Positioning System →Space segment: (if Wikipedia resizes the image, even to make it smaller, it results on a bigger bandwidth image, so I leave the original size in the thumbnail)
- 17:5917:59, 9 December 2007 diff hist 0 Global Positioning System →Space segment: (Edited image of constellation for faster viewing) (and trying to realize how to place it correctly...)
- 17:5617:56, 9 December 2007 diff hist +6 Global Positioning System →Space segment
- 17:5317:53, 9 December 2007 diff hist −12 Global Positioning System →Space segment
- 16:2916:29, 9 December 2007 diff hist +337 Talk:Global Positioning System →Suggestion of animated gif showing satellites in orbit
7 December 2007
- 01:5701:57, 7 December 2007 diff hist +40 Talk:Global Positioning System →Suggestion of animated gif showing satellites in orbit
- 01:5601:56, 7 December 2007 diff hist +569 Talk:Global Positioning System →Suggestion of animated gif showing satellites in orbit: new section
2 January 2007
- 13:1213:12, 2 January 2007 diff hist +86 Simple harmonic motion Added animation from "wave (physics)" article which clearly helps understand simple harmonic motion
30 November 2006
- 21:1721:17, 30 November 2006 diff hist −36 Matched filter Removed the link to "Time_Reversal_Signal_Processing", as that article does not refer to the simple time-reverse of a signal (i.e. x(-t)) used in this article
14 July 2006
12 July 2006
- 18:0818:08, 12 July 2006 diff hist −295 User talk:El pak →"Rough Paper" for me to scribble things up
26 June 2006
- 19:4819:48, 26 June 2006 diff hist +29 Matched filter Added a diagram of the total system, which clearly helps understanding.
- 17:2717:27, 26 June 2006 diff hist +8 Matched filter No edit summary
- 17:1717:17, 26 June 2006 diff hist +46 Matched filter No edit summary
- 17:0917:09, 26 June 2006 diff hist +91 Matched filter Corrected few mistakes
- 15:5415:54, 26 June 2006 diff hist +787 Matched filter Added formulae to support example.
- 15:0815:08, 26 June 2006 diff hist 0 Matched filter →Example in digital communications
- 15:0215:02, 26 June 2006 diff hist +6 Matched filter No edit summary
- 15:0115:01, 26 June 2006 diff hist +88 Matched filter No edit summary
- 14:5714:57, 26 June 2006 diff hist 0 m Matched filter corrected spelling
- 14:5514:55, 26 June 2006 diff hist +10 m Matched filter Corrected links
- 14:5314:53, 26 June 2006 diff hist +1,626 Matched filter Added example in digital communications with images. Please correct my style, vocabulary and spelling.
