Anywhere-Anytime Signals and Systems Laboratory: From MATLAB to Smartphones

211 Pages·2016·11.602 MB·English

by  Nasser Kehtarnavaz, Fatemeh Saki

Series ISSN: 1932-1236
Series Editor: José Moura, Carnegie Mellon University
Anywhere-Anytime
Anywhere-Anytime Signals and Systems Laboratory
From MATLAB to Smartphones
Signals and Systems
Nasser Kehtarnavaz, University of Texas at Dallas
Fatemeh Saki, University of Texas at Dallas
A typical undergraduate electrical engineering curriculum incorporates a signals and systems
Laboratory
course. The widely used approach for the laboratory component of such courses involves the
utilization of MATLAB to implement signals and systems concepts. This book presents a
newly developed laboratory paradigm where MATLAB codes are made to run on smartphones,
which most students already possess. This smartphone-based approach enables an anywhere- From MATLAB to Smartphones
anytime platform for students to conduct signals and systems experiments. This book covers the
laboratory experiments that are normally covered in signals and systems courses and discusses
how to run MATLAB codes for these experiments on smartphones, thus enabling a truly
mobile laboratory environment for students to learn the implementation aspects of signals
and systems concepts. A zipped file of the codes discussed in the book can be acquired via the
website http://sites.fastspring.com/bookcodes/product/SignalsSystemsBookcodes.
Nasser Kehtarnavaz
Fatemeh Saki
About SYNTHESIS
This volume is a printed version of a work that appears in the Synthesis
Digital Library of Engineering and Computer Science. Synthesis
books provide concise, original presentations of important research and
development topics, published quickly, in digital and print formats.
store.morganclaypool.com
Anywhere-Anytime
Signals and Systems Laboratory
From MATLAB to Smartphones
Synthesis Lectures on Signal
Processing
Editor
JoséMoura,CarnegieMellonUniversity
SynthesisLecturesinSignalProcessingpublishes80-to150-pagebooksontopicsofinterestto
signalprocessingengineersandresearchers.eLecturesexploitindetailafocusedtopic.eycan
beatdifferentlevelsofexposition-fromabasicintroductorytutorialtoanadvanced
monograph-dependingonthesubjectandthegoalsoftheauthor.Overtime,theLectureswill
provideacomprehensivetreatmentofsignalprocessing.Becauseofitsformat,theLectureswillalso
providecurrentcoverageofsignalprocessing,andexistingLectureswillbeupdatedbyauthorswhen
justified.
LecturesinSignalProcessingareopentoallrelevantareasinsignalprocessing.eywillcover
theoryandtheoreticalmethods,algorithms,performanceanalysis,andapplications.SomeLectures
willprovideanewlookatawellestablishedareaorproblem,whileotherswillventureintoabrand
newtopicinsignalprocessing.Bycarefulreviewingthemanuscriptswewillstriveforqualitybothin
theLectures’contentsandexposition.
Anywhere-AnytimeSignalsandSystemsLaboratory:FromMATLABtoSmartphones
NasserKehtarnavazandFatemehSaki
2016
Smartphone-BasedReal-TimeDigitalSignalProcessing
NasserKehtarnavaz,ShaneParris,andAbhishekSehgal
2015
AnIntroductiontoKalmanFilteringwithMATLABExamples
NarayanKovvali,MaheshBanavar,andAndreasSpanias
2013
SequentialMonteCarloMethodsforNonlinearDiscrete-TimeFiltering
MarceloG.S.Bruno
2013
ProcessingofSeismicReflectionDataUsingMATLAB™
WailA.MousaandAbdullatifA.Al-Shuhail
2011
iii
Fixed-PointSignalProcessing
WayneT.PadgettandDavidV.Anderson
2009
AdvancedRadarDetectionSchemesUnderMismatchedSignalModels
FrancescoBandiera,DaniloOrlando,andGiuseppeRicci
2009
DSPforMATLAB™andLabVIEW™IV:LMSAdaptiveFiltering
ForesterW.Isen
2009
DSPforMATLAB™andLabVIEW™III:DigitalFilterDesign
ForesterW.Isen
2008
DSPforMATLAB™andLabVIEW™II:DiscreteFrequencyTransforms
ForesterW.Isen
2008
DSPforMATLAB™andLabVIEW™I:FundamentalsofDiscreteSignalProcessing
ForesterW.Isen
2008
eeoryofLinearPrediction
P.P.Vaidyanathan
2007
NonlinearSourceSeparation
LuisB.Almeida
2006
SpectralAnalysisofSignals:eMissingDataCase
YanweiWang,JianLi,andPetreStoica
2006
Copyright©2017byMorgan&Claypool
Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedin
anyformorbyanymeans—electronic,mechanical,photocopy,recording,oranyotherexceptforbriefquotations
inprintedreviews,withoutthepriorpermissionofthepublisher.
Anywhere-AnytimeSignalsandSystemsLaboratory:FromMATLABtoSmartphones
NasserKehtarnavazandFatemehSaki
www.morganclaypool.com
ISBN:9781627059015 paperback
ISBN:9781627055031 ebook
DOI10.2200/S00727ED1V01Y201608SPR014
APublicationintheMorgan&ClaypoolPublishersseries
SYNTHESISLECTURESONSIGNALPROCESSING
Lecture#14
SeriesEditor:JoséMoura,CarnegieMellonUniversity
SeriesISSN
Print1932-1236 Electronic1932-1694
Anywhere-Anytime
Signals and Systems Laboratory
From MATLAB to Smartphones
Nasser Kehtarnavaz and Fatemeh Saki
UniversityofTexasatDallas
SYNTHESISLECTURESONSIGNALPROCESSING#14
M
&C Morgan &cLaypool publishers
ABSTRACT
A typical undergraduate electrical engineering curriculum incorporates a signals and systems
course.ewidelyusedapproachforthelaboratorycomponentofsuchcoursesinvolvestheuti-
lization of MATLAB to implement signals and systems concepts. is book presents a newly
developedlaboratoryparadigmwhereMATLABcodesaremadetorunonsmartphones,which
most students already possess. is smartphone-based approach enables an anywhere-anytime
platform for students to conduct signals and systems experiments. is book covers the labo-
ratory experiments that are normally covered in signals and systems courses and discusses how
to run MATLAB codes for these experiments on smartphones, thus enabling a truly mobile
laboratory environment for students to learn the implementation aspects of signals and sys-
tems concepts. A zipped file of the codes discussed in the book can be acquired via the website
http://sites.fastspring.com/bookcodes/product/SignalsSystemsBookcodes.
KEYWORDS
smartphone-based signals and systems laboratory; anywhere-anytime platform for
signalsandsystemcourses;fromMATLABtosmartphones
vii
Contents
Preface ............................................................xi
1 IntroductiontoMATLAB ............................................ 1
1.1 StartingMATLAB ................................................1
1.1.1 ArithmeticOperations ........................................1
1.1.2 VectorOperations ............................................5
1.1.3 ComplexNumbers ...........................................6
1.1.4 ArrayIndexing ..............................................7
1.1.5 AllocatingMemory...........................................8
1.1.6 SpecialCharactersandFunctions................................9
1.1.7 ControlFlow...............................................10
1.1.8 ProgramminginMATLAB ...................................12
1.1.9 SoundGeneration...........................................13
1.1.10LoadingandSavingData .....................................14
1.1.11ReadingWaveandImageFiles.................................14
1.1.12SignalDisplay ..............................................15
1.2 MATLABProgrammingExamples ..................................15
1.2.1 SignalGeneration ...........................................15
1.2.2 GeneratingaPeriodicSignal ..................................17
1.3 LabExercises ....................................................18
2 AndroidSoftwareDevelopmentTools ................................. 21
2.1 InstallationSteps .................................................21
2.1.1 JavaJDK ..................................................21
2.1.2 AndroidStudioBundleandNativeDevelopmentKit...............22
2.1.3 EnvironmentVariableConfiguration ............................23
2.1.4 AndroidStudioConfiguration .................................24
2.1.5 AndroidEmulatorConfiguration...............................27
2.2 GettingFamiliarwithAndroidSoftwareTools..........................31
viii
3 FromMATLABCodertoSmartphone ................................ 43
3.1 MATLABFunctionDesign ........................................43
3.2 GeneratingSignalsviaMATLABonSmartphones ......................45
3.2.1 TestBench.................................................46
3.2.2 CCodeGeneration..........................................46
3.2.3 SourceCodeIntegration......................................48
3.3 RunningMATLABCoderCCodesonSmartphones....................52
3.4 References.......................................................56
4 LinearTime-InvariantSystemsandConvolution ........................ 57
4.1 ConvolutionandItsNumericalApproximation .........................57
4.2 ConvolutionProperties ............................................59
4.3 ConvolutionExperiments ..........................................59
4.4 LabExercises ....................................................89
4.4.1 EchoCancellation...........................................89
4.4.2 NoiseReductionUsingMeanFiltering ..........................90
4.4.3 ImpulseNoiseReductionUsingMedianFiltering..................91
4.5 RunningMATLABCoderCCodesonSmartphone ....................91
4.6 RunninginReal-TimeonSmartphones ...............................95
4.6.1 MATLABFunctionDesign...................................95
4.6.2 TestBench.................................................95
4.6.3 ModifyingaRealTimeShell ..................................99
4.7 References......................................................105
5 FourierSeries .................................................... 107
5.1 FourierSeriesNumericalComputation...............................108
5.2 FourierSeriesandItsApplications ..................................109
5.3 LabExercises ...................................................123
5.3.1 RLCircuitAnalysis ........................................123
5.3.2 eDopplerEffect .........................................124
5.3.3 SynthesisofElectronicMusic.................................124
5.4 References......................................................127
6 Continuous-TimeFourierTransform................................. 129
6.1 CTFTandItsProperties ..........................................129
6.2 NumericalApproximationsofCTFT ................................130
ix
6.3 EvaluatingPropertiesofCTFT.....................................130
6.4 LabExercises ...................................................159
6.4.1 CircuitAnalysis............................................159
6.4.2 MorseCoding .............................................159
6.4.3 eDopplerEffect .........................................160
6.4.4 DiffractionofLight ........................................162
6.5 References......................................................163
7 DigitalSignalsandeirTransforms ................................. 165
7.1 DigitalSignals ..................................................165
7.1.1 SamplingandAliasing ......................................165
7.1.2 Quantization ..............................................169
7.1.3 A/DandD/AConversions...................................169
7.1.4 DTFTandDFT...........................................173
7.2 Analog-to-DigitalConversion,DTFT,andDFT ......................174
7.3 LabExercises ...................................................193
7.3.1 Dithering.................................................193
7.3.2 ImageProcessing...........................................193
7.3.3 DTMFDecoder ...........................................193
7.4 References......................................................194
Authors’Biographies .............................................. 195
Index ........................................................... 197