Talk:Signal processing

message: What goes on between light entering the eye and an image being perceived by the brain ... that is also 'signal processing'. Grassynoel (talk) 15:13, 16 March 2010 (UTC)
replies: text: Do you have a source for that? Textbooks on signal processings (or signals and systems) do not cover psychological aspects. Mange01 (talk) 19:15, 16 March 2010 (UTC)
replies: text: Maybe not psychology, but certainly physiology. Not eyes but ears: Auditory Signal Processing: Physiology, Psychoacoustics, and Models  (on Amazon). Here's something visual: Characterisation of columnar neurons and visual signal processing in the medulla of the locust optic lobe by system identification techniques. Bioinformatics is also relevant - applying signal processing to DNA sequences, and suchlike. I think Grassynoel has a point - signal processing is one of those beautifully broad topics, applicable to just about anything. I'm less sure how to write this into the article though. Any ideas? GyroMagician (talk) 23:17, 16 March 2010 (UTC)
thread_title: Article too narrow in scope

message: Please remove stub text. This article is good! as it is.  —Preceding unsigned comment added by 130.92.9.58 (talk) 12:40, 10 December 2007 (UTC)
thread_title: Stub text

message: "A formal science is a theoretical study that is concerned with theoretical formal systems, for instance, logic, mathematics, systems theory and the theoretical branches of computer science, information theory, and statistics." (from Formal science). I can't see how signal processing, an applied field of engineering, fits in this category. I have therefore removed :Category:Formal sciences. --Zvika (talk) 05:03, 8 June 2008 (UTC)
replies: text: Can you cite a source saying that signal processing is a formal science? Signal processing textbooks I looked at (e.g., Kay, Fundamentals of Statistical Signal Processing) treat it as a branch of electrical engineering. The mere fact that mathematical techniques are used in signal processing is not very convincing, since by that measure, just about any field of science and engineering is a branch of mathematics: quantum mechanics, for example, uses purely mathematical techniques to solve a certain differential equation. The difference is that there is a concrete physical meaning associated with such solutions. There is an identical distinction between signal processing (an engineering field) and stochastic processes (a mathematical field). --Zvika (talk) 12:05, 8 June 2008 (UTC)

text: I still find it strange. I would like to see a better source. Signal processing is not really about finding and interpreting structures in large amount of data, as your pdf file claims. I have never seen Formal sciences mentioned in a book on signal processing, so I don't think this is the place to mention the connection. Mange01 (talk) 12:14, 24 July 2008 (UTC)
replies: text: Also, looking through the preview of the book you mentioned, I can't any discussion of formal sciences; it looks like a technical discussion of frequency estimation. Can you point to a specific page/chapter mentioning this? --Zvika (talk) 08:32, 25 July 2008 (UTC)
replies: text: Jimmaths, as you have not responded to either of us, I am removing the category from the article until better sources can be found. Please reach consensus by discussing the issue on this talk page before adding it again. With respect, --Zvika (talk) 04:52, 28 July 2008 (UTC)
thread_title:  formal science? 

message: Complete rewrite is not a bad option imho
88.112.85.50 (talk) 02:21, 19 December 2009 (UTC)
replies: text: Get writing then. SpinningSpark 03:54, 19 December 2009 (UTC)

text: Exactly. Or please be more specific. Mange01 (talk) 19:13, 16 March 2010 (UTC)
thread_title:  This article is terrible as it is 

message: I searched for Signal Theory and ended up on this page, when what I was looking for was Signalling (economics).  It would be nice to have a link pointing to that page for people like me.
:A disambiguation link has been added. Isheden (talk) 22:52, 26 November 2011 (UTC)
thread_title:  Wrong redirect for Signal Theory 

message: For an aricle (about patent law) I needed a definition of "signal processing", so I consulted Wikipedia, but I was disappointed.
In my view, signal processing is the process of handling information that is represented imperfectly: "signal" is a twin concept to "noise" (e.g. in "signal to noise ratio). Digital information has no noise, but the channels used to transport digital inforation do distort the signals that represent the information. The famous Shannon theorem refers to the signal to noise ration explicitly.    
Please comment. Rbakels (talk) 13:22, 3 June 2017 (UTC)
replies: text: Did you look in any of the linked articles in  for your definition. ~Kvng (talk) 14:01, 9 June 2017 (UTC)
thread_title:  Better definition needed 

message: Right now the Categories section contains a mix of several different concepts, I think this ordering would be more true to the domains and applications of signal processing:
* Domains (mainly focusing on linear systems)
** Continuous
** Discrete
* Implementations
** Analog
** Digital
** Other
* Nonlinear signal processing
--Henrikenggaard (talk) 07:04, 12 August 2019 (UTC)
thread_title:  Reordering and restructuring