* Introduction to Signal Processing with applications in scientific measurement
An illustrated essay with free software to download
This is a work in progress, last updated December
12 , 2017.
(Recently updated files)
A retirement project by Tom O'Haver,
Department of Chemistry and Biochemistry
University of Maryland at College Park orcid.org/0000-0001-9045-1603
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This essay is also available as a 150-page, ,
printable document indexed written in OpenOffice and
Open Document* *
, Word , and PDF formats. December 12 , 2017
version. Readability index
A paperback book version is available from Amazon
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* Pragmatic: Relating to matters of fact or practical affairs,
often to the exclusion of intellectual or artistic matters;
practical as opposed to idealistic.
** What is Open Document format? See
Software used in this essay
high-performance commercial numerical computing environment and
programming language that is widely used in research and
education, for Windows, Macintosh, and Linux.
Octave, a free
alternative to Matlab, mostly compatible, for Windows, Macintosh,
simple, freeware, 90s-era
signal processing program, for Macintosh OS 8.
Microsoft Excel 2013
OpenOffice Calc 4.1.1
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edition created in 1995. Last updated December 2017. Created with SeaMonkey.
This site is a retirement
project and international community
service, maintained by Prof. Tom O'Haver,
Professor Emeritus, Department of Chemistry and Biochemistry, The
University of Maryland at College Park, currently residing in
Naples, FL, and in Silver Spring, MD. Comments, suggestions and
questions should be directed to Prof. O'Haver at email@example.com,
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