Talk:Signal processing

From Wikipedia, the free encyclopedia
Jump to: navigation, search
          This article is of interest to the following WikiProjects:
WikiProject Mathematics (Rated C-class, Low-priority)
WikiProject Mathematics
This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of Mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
Mathematics rating:
C Class
Low Priority
 Field: General
WikiProject Statistics (Rated C-class, Low-importance)
WikiProject icon

This article is within the scope of the WikiProject Statistics, a collaborative effort to improve the coverage of statistics on Wikipedia. If you would like to participate, please visit the project page or join the discussion.

C-Class article C  This article has been rated as C-Class on the quality scale.
 Low  This article has been rated as Low-importance on the importance scale.
 
WikiProject Computing (Rated C-class, Mid-importance)
WikiProject icon This article is within the scope of WikiProject Computing, a collaborative effort to improve the coverage of computers, computing, and information technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
C-Class article C  This article has been rated as C-Class on the project's quality scale.
 Mid  This article has been rated as Mid-importance on the project's importance scale.
 
WikiProject Computer science (Rated C-class, Low-importance)
WikiProject icon This article is within the scope of WikiProject Computer science, a collaborative effort to improve the coverage of Computer science related articles on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
C-Class article C  This article has been rated as C-Class on the project's quality scale.
 Low  This article has been rated as Low-importance on the project's importance scale.
 
WikiProject Telecommunications (Rated C-class, Low-importance)
WikiProject icon This article is within the scope of WikiProject Telecommunications, a collaborative effort to improve the coverage of Telecommunications on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
C-Class article C  This article has been rated as C-Class on the quality scale.
 Low  This article has been rated as Low-importance on the importance scale.
 
WikiProject Systems (Rated C-class, Mid-importance)
WikiProject icon This article is within the scope of WikiProject Systems, which collaborates on articles related to systems and systems science.
C-Class article C  This article has been rated as C-Class on the project's quality scale.
 Mid  This article has been rated as Mid-importance on the project's importance scale.
Taskforce icon
This article is not associated with a particular field. Fields are listed on the template page.
 
WikiProject Electrical engineering (Rated C-class, Mid-importance)
WikiProject icon This article is within the scope of WikiProject Electrical engineering, a collaborative effort to improve the coverage of Electrical engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
C-Class article C  This article has been rated as C-Class on the project's quality scale.
 Mid  This article has been rated as Mid-importance on the project's importance scale.
 
WikiProject Electronics (Rated C-class, High-importance)
WikiProject icon This article is part of WikiProject Electronics, an attempt to provide a standard approach to writing articles about electronics on Wikipedia. If you would like to participate, you can choose to edit the article attached to this page, or visit the project page, where you can join the project and see a list of open tasks. Leave messages at the project talk page
C-Class article C  This article has been rated as C-Class on the project's quality scale.
 High  This article has been rated as High-importance on the project's importance scale.
 

idem per idem[edit]

Signal processing -- is processing (...) of signals

 :)

Article too narrow in scope[edit]

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)

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)
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)

Ok, I see your point. These article sections discuss celebral/neural signal processing models:

Mange01 (talk) 22:12, 17 March 2010 (UTC)

Stub text[edit]

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)

formal science?[edit]

"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)

Signals are a mathematical entity, though sometimes realised in physical media designed by engineers. Analysis of signals is by Fourier analysis and other such purely mathematical techniques. Thus signal processing is a central example of the formal sciences. - James Franklin, http://www.maths.unsw.edu.au/~jim Jimmaths (talk) 08:48, 8 June 2008 (UTC)

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)

Sources such as requested are 'The formal sciences discover the philosopher's stone', http://www.maths.unsw.edu.au/~jim/philosophersstone.pdf, which explains the relation of engineering to the formal sciences, and a book on signal processing such as Quinn and Hannan, The Estimation and Tracking of Frequency http://www.cambridge.org/catalogue/catalogue.asp?isbn=9780521804462. Quantum mechanics is not a formal science, since it just applies mathematics to studying a physical phenomenon, nor is the analysis of stress in buildings, for example. But signal processing studies signals, which are a certain kind of time series. They may be realised in some physical things, such as what submarines emit, but that is true of any mathematical entity: for example symmetries may be realised in wooden dice but that doesn't make group theory a division of carpentry. So I've re-added the category of formal science for signal processing. Please read the relevant part of at least one of the references before deleting it. Jimmaths (talk) 05:21, 24 July 2008 (UTC)

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)
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)
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)

This article is terrible as it is[edit]

Complete rewrite is not a bad option imho

88.112.85.50 (talk) 02:21, 19 December 2009 (UTC) Lemkin

Get writing then. SpinningSpark 03:54, 19 December 2009 (UTC)
Exactly. Or please be more specific. Mange01 (talk) 19:13, 16 March 2010 (UTC)

Wrong redirect for Signal Theory[edit]

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)