Signal processing: Difference between revisions

Revision as of 16:17, 14 February 2025

Revision as of 15:12, 24 March 2025

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* Source coding including [[audio compression (data)|audio compression]], [[image compression]], and [[video compression]].

* [[Genomic]] signal processing<ref>{{cite journal|first1=D.|last1=Anastassiou|title=Genomic signal processing|journal=IEEE Signal Processing Magazine|volume=18|issue=4|pages=8–20|year=2001|publisher=IEEE|doi=10.1109/79.939833|bibcode=2001ISPM...18....8A }}</ref>

* In [[geophysics]], signal processing is used to amplify the signal vs the noise within [[time-series]] measurements of geophysical data. Processing is conducted within the [[time ___domain]] or [[frequency ___domain]], or both.<ref>{{cite book |last1=Telford |first1=William Murray |last2=Geldart |first2=L. P. |first3=Robert E. |last3= Sheriff |title=Applied geophysics |year=1990 |publisher=[[Cambridge University Press]] |isbn=978-0-521-33938-4}}</ref><ref>{{cite book|last1=Reynolds |first1=John M. |title=An Introduction to Applied and Environmental Geophysics |year=2011 |publisher=[[Wiley-Blackwell]] |isbn=978-0-471-48535-3}}</ref><!--[[User:Kvng/RTH]]-->

In communication systems, signal processing may occur at:{{cn|date=March 2025}}

* OSI layer 1 in the seven-layer [[OSI model]], the [[physical layer]] ([[modulation]], [[Equalization (communications)|equalization]], [[multiplexing]], etc.);

* OSI layer 2, the [[data link layer]] ([[forward error correction]]);

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==Typical devices ==

* [[Filter (signal processing)|Filters]]{{spaced ndash}} for example analog (passive or active) or digital ([[FIR filter|FIR]], [[IIR filter|IIR]], frequency ___domain or [[stochastic filter]]s, etc.)

* [[Sampling (signal processing)|Samplers]] and [[analog-to-digital converter]]s for [[Data acquisition|signal acquisition]] and reconstruction, which involves measuring a physical signal, storing or transferring it as digital signal, and possibly later rebuilding the original signal or an approximation thereof.

* [[Digital signal processor]]s (DSPs)<!--[[User:Kvng/RTH]]-->

* [[Data compression|Signal compressors]]

* [[Digital signal processor]]s (DSPs)

==Mathematical methods applied==