ee4512 analog and digital communications ee4513 …silage/chapter1svu.pdf · 35% and final exam...

EE4512 Analog and Digital CommunicationsEE4512 Analog and Digital CommunicationsEE4513 Analog and Digital Communications EE4513 Analog and Digital Communications

LaboratoryLaboratoryDr. Dennis SilageDr. Dennis [email protected]@temple.edu

•• Course syllabusCourse syllabus

•• Course textbooksCourse textbooks

•• Course gradesCourse grades

•• Course objectivesCourse objectives

EE4512 Analog and Digital CommunicationsEE4512 Analog and Digital Communications• CourseCourse

syllabussyllabus

EE4512 Analog and Digital CommunicationsEE4512 Analog and Digital Communications• Course textbooksCourse textbooks

EE4512 Analog and Digital Communications

•• InIn--class problems and discussions form the basis for the class problems and discussions form the basis for the examinationsexaminations

•• PrePre--tests (25%) and examinations (three hourly exams tests (25%) and examinations (three hourly exams 35% and final exam 40%) are benchmarks of 35% and final exam 40%) are benchmarks of performanceperformance

•• Blackboard Blackboard is used for theis used for thecourse documents and tocourse documents and tocommunicate assignments communicate assignments


•• This course is the This course is the applicationapplication of of electrotechnologyelectrotechnology

•• Professional career path in Professional career path in digital data communicationsdigital data communications

•• Course sequence continues in EE4542 (EE320) Course sequence continues in EE4542 (EE320) Telecommunication EngineeringTelecommunication Engineering

•• Read the assigned textRead the assigned textportions and review yourportions and review yournotes before classnotes before class

•• Periodic closedPeriodic closed--bookbookbut open notes but open notes prepre--test test totoassess preparationassess preparation

Edwin and Marian Armstrong Edwin and Marian Armstrong with a with a portable radio portable radio 19231923


•• SystemVue SystemVue modeling of communication systems inmodeling of communication systems in--class class augments the text descriptionaugments the text description

•• SystemVueSystemVue modeling and modeling and Feedback Feedback hardware used in hardware used in EE4513 Analog and Digital Communications LaboratoryEE4513 Analog and Digital Communications Laboratory

•• InIn--class discussions andclass discussions andproblem solutions ratherproblem solutions ratherthan than readingreading the textbooksthe textbooks

Temple Technical InstituteTemple Technical Institute

Analog Communications Analog Communications Laboratory 1962Laboratory 1962

•• The 15The 15--minute preminute pre--tests are tests are openopen--notesnotes but but closed text closed text bookbook. The pre. The pre--test concept relates to the learning test concept relates to the learning process expressed in the Chinese proverb:process expressed in the Chinese proverb:

I hear and I forget;I hear and I forget;I see and I remember,I see and I remember,I do and I understand.I do and I understand.

The organized notesThe organized notesare a compilation ofare a compilation ofreading the text andreading the text andthinking about thethinking about theconcepts and are anconcepts and are anaid to aid to learninglearning..


•• I hear and I forget; I hear and I forget; ←← Listening to the lectureListening to the lectureI see and I remember, I see and I remember, ←← Reading the textbook Reading the textbook I do and I understand.I do and I understand. ←← Compiling the notesCompiling the notes

The notes are to beThe notes are to behandwrittenhandwritten to insureto insurethat the process worksthat the process worksfor you. No for you. No xeroxxerox copiescopiesor or electronic versionselectronic versionsor textbooks areor textbooks arepermitted for usepermitted for useduring the pretest.during the pretest.


Leonardo Da Vinci and his notebooks

•• The 15The 15--minute preminute pre--tests aretests aresimple calculations and unit simple calculations and unit conversions (calculators areconversions (calculators arepermitted) from formulas in yourpermitted) from formulas in yournotes and conceptual, one notes and conceptual, one sentence answers to posedsentence answers to posedquestions to assess yourquestions to assess yourunderstanding of the basicunderstanding of the basicconcepts.concepts.

The preThe pre--test is the assessmenttest is the assessmentof your preparation and organizesof your preparation and organizesyour thoughts as part of the your thoughts as part of the engineering methodengineering method (not that (not that shown here!).shown here!).


EE4512 Analog and Digital Communications Chapter 1

Chapter 1Chapter 1

IntroductionIntroduction


Chapter 1Chapter 1

IntroductionIntroduction•• Components of a CommunicationComponents of a CommunicationSystemSystem

•• Pages 1Pages 1--55


•• ModulationModulation: : 11:: to tune to a key or pitchto tune to a key or pitch2:2: to adjust to or keep in proper measure or proportion to adjust to or keep in proper measure or proportion 33:: to vary the amplitude, frequency, or phase of (a to vary the amplitude, frequency, or phase of (a

carrier wave or a light wave) for the transmission of carrier wave or a light wave) for the transmission of information (as by radio); information (as by radio); alsoalso :: to vary the velocity of to vary the velocity of electrons in an electron beamelectrons in an electron beam

• Carrier Carrier (partial definition):(partial definition):1: 1: an entity (as a hole or an electron) capable of carrying an entity (as a hole or an electron) capable of carrying

an electric chargean electric charge2: an electromagnetic wave or alternating current whose 2: an electromagnetic wave or alternating current whose

modulations are used as communications signals (as modulations are used as communications signals (as in radio, telephonic, or telegraphic transmissionsin radio, telephonic, or telegraphic transmissions

3: 3: a telecommunication companya telecommunication company


•• Analog modulation:Analog modulation:continuouscontinuousinformation such asinformation such asspeechspeech or or videovideoencoded as anencoded as anamplitudeamplitude

•• Digital modulation:Digital modulation:discrete informationdiscrete informationsuch as such as binary databinary dataencoded asencoded asa a frequency shiftfrequency shiftorora a phase shiftphase shift


SourceSource

TransmitterTransmitter

ChannelChannel

NoiseNoise

ReceiverReceiver

UserUser

SVU Figure 1SVU Figure 1--6767

Analog amplitude modulation (AM)Analog amplitude modulation (AM)


•• One secondOne secondof of speechspeech::inputinputandandamplitudeamplitudemodulatedmodulatedoutputoutput

•• CarrierCarriersinusoidalsinusoidalsignal containssignal containsno informationno information


•• One secondOne secondof of speechspeech::inputinputandanddemodulateddemodulatedoutput output


•• Amplitude modulation frequency Amplitude modulation frequency power spectrumpower spectrum•• Unmodulated 20 KHz carrierUnmodulated 20 KHz carrier•• Modulated informationModulated information•• NoiseNoise


Digital binary phase shift keying (BPSK)Digital binary phase shift keying (BPSK)

SVU Figure 3.11 modifiedSVU Figure 3.11 modifiedSourceSource

TransmitterTransmitter

ChannelChannel

NoiseNoise

ReceiverReceiver UserUser


•• Input binary data Input binary data

• Output binary data with no noise, note 1 bit delay in outputOutput binary data with no noise, note 1 bit delay in output



• Received signal with significant additive noiseReceived signal with significant additive noise



• Output binary data with bit errors due to additive noiseOutput binary data with bit errors due to additive noise


End of Chapter 1End of Chapter 1

IntroductionIntroduction

ee4512 analog and digital communications ee4513 …silage/chapter1svu.pdf · 35% and final exam...

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