Talk:Signal processing

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[edit] idem per idem

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

 :)

[edit] Stub text

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)

[edit] formal science?

"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 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)