Real-Time Digital Signal Processing from MATLAB to C with the TMS320C6x DSK.

396 Pages·2005·18.64 MB·English

by  Welch, Thad B., Wright, Cameron H. G.

REAL-TIME
DIGITAL SIGNAL
PROCESSING
from M ® to C with
ATLAB
the TMS320C6x DSK

REAL-TIME
DIGITAL SIGNAL
PROCESSING
from M ® to C with
ATLAB
the TMS320C6x DSK
Thad B. Welch
United States Naval Academy, Annapolis, Maryland
Cameron H.G. Wright
University of Wyoming, Laramie, Wyoming
Michael G. Morrow
University of Wisconsin, Madison, Wisconsin
Boca Raton London New York
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To Donna...
To Robin...
To Jan...

Foreword
Digital signal processing is at the “heart” of most technologies that we use today. Our
cellphonesusedigital signalprocessingtogeneratetheDTMF(dualtonemulti-frequency)
tones that are sent to wireless networks. Our noise-canceling headphones use adaptive
digital signal processing to cancel the noise in the environment around us. Digital cameras
use digital signal processing to compress images into JPEG formats for efficient storage so
thatwecanstorehundredsofimagesinasinglememorycard. Itisdigitalsignalprocessing
that allows us to play compressed music in our iPODs. Digital signal processing controls
even the anti-lock brakes in our cars today. And these are just a few of the examples of
real-time signal processing in the world around us.
There are many good textbooks today to teach digital signal processing—but most of
themarecontenttoteachthetheory,andperhapssomeMatlabsimulations. Thisbookhas
taken a bold step forward. It not only presents the theory, it reinforces it with simulations,
andthenitshowsushowtoactuallyusetheresultsinreal-timeapplications. Thislaststep
is not a trivial step, and that is why so many books and courses present only theory and
simulations. With the combined expertise of the three authors of this text—Thad Welch,
CamWright,andMikeMorrow—thereadercanstepintothereal-timeworldofapplications
with a text that presents an accessible path.
I have been fortunate to co-author several papers with the authors of this text, and can
speakfromfirst-handexperiencesoftheirdedicationtoengineeringeducation. Theygothe
extra mile to continue to expand their understanding and their abilities to present com-
plex material in a logical, straightforward manner. They attend conferences on engineering
education; they chair sessions on engineering education; they write papers on engineering
education; they live engineering education! So, I am delighted to be able to have an op-
portunity to tell the readers of this text that they are in for, in the authors’ own words, “a
ride...”.
Delores M. Etter
Professor, Electrical Engineering
Distinguished Chair in Science and Technology
United States Naval Academy
Annapolis, Maryland
(Dr.EtterismemberoftheNationalAcademyofEngineeringandaFellowoftheIEEEand
the American Society of Engineering Education. She served as the Deputy Under Secretary
of Defense for Science and Technology from 1998–2001. She is also the author of a number
of engineering textbooks, including several on Matlab.)

About the Authors
Thad B. Welch, Ph.D., P.E., is an Associate Professor and Permanent Military Pro-
fessor in the Department of Electrical and Computer Engineering at the U.S. Naval
Academy(USNA),Annapolis,Maryland,andpreviouslytaughtattheU.S.AirForce
Academy(USAFA)intheDepartmentofElectricalEngineering. HeisaCommander
in the U.S. Navy, and won the 1997 Clements Outstanding Educator Award at US-
AFA, the 2001 ECE Outstanding Educator Award, 2002 Raouf Award for Excellence
in the Teaching of Engineering, and the 2003 ECE Outstanding Researcher Award
at USNA. Dr. Welch is the former chairman and a founding member of the Tech-
nical Committee on Signal Processing Education for the Institute of Electrical and
Electronic Engineers (IEEE) Signal Processing Society. He is a senior member of the
IEEE and a member of the American Society for Engineering Education (ASEE).
Cameron H. G. Wright, Ph.D., P.E., is an Assistant Professor in the Department of
Electrical and Computer Engineering at the University of Wyoming, and previously
taughtfornearlytenyearsattheU.S.AirForceAcademy(USAFA)intheDepartment
of Electrical Engineering where he was Professor and Deputy Department Head. A
retired Lieutenant Colonel in the U.S. Air Force, he won the Brigadier General R.
E. Thomas Award for Outstanding Contributions to Cadet Education in 1992 and
1993. In 2005, he won the IEEE Student Choice Award for Outstanding Professor
of the Year and the Mortar Board “Top Prof” Award at the University of Wyoming.
Dr. Wright is a founding member of the Technical Committee on Signal Processing
Education for the IEEE Signal Processing Society. He is a senior member of the
IEEE, and a member of ASEE, the National Society of Professional Engineers, and
the International Society of Optical Engineers.
Michael G. Morrow, M.Eng.E.E., P.E., is a Faculty Associate in the Department of
Electrical and Computer Engineering at the University of Wisconsin–Madison. A
retired Lieutenant Commander in the U.S. Navy, he previously taught in the Elec-
trical Engineering Department at the U.S. Naval Academy. Mr. Morrow won both
the 2002 Department of Electrical and Computer Engineering Outstanding Educator
Award and the 2003 Gerald Holdridge Teaching Excellence Award at the University
of Wisconsin–Madison, and was designated a Microsoft Most Valuable Professional
(MVP). HeisthefounderandpresidentofEducationalDSP(eDSP),LLC,developing
affordable DSP education solutions. He is a member of the Technical Committee on
Signal Processing Education for the Institute of Electrical and Electronic Engineers
(IEEE)SignalProcessingSociety,aseniormemberoftheIEEE,andamemberofthe
American Society for Engineering Education (ASEE).