Course Introduction to digital communications 2

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Responsible: Prof.Dr.Dettmar

Course

Meets requirements of following modules(MID)

• in active programs
  • Ba ET2012 UT2
  • Ba ET2010 Digitale Modulationsverfahren

Course Organization

Version created 2011-12-02 VID 1 valid from WS 2012/13 valid to

Course identifiers Long name Introduction to digital communications 2 CID F07_UT2 CEID (exam identifier)

Contact hours per week (SWS) Lecture 2 Exercise (unsplit) Exercise (split) 2 Lab 1 Project Seminar Tutorial(voluntary)

Total contact hours Lecture 30 Exercise (unsplit) Exercise (split) 30 Lab 15 Project Seminar Tutorial (voluntary)

Max. capacity Exercise (unsplit) Exercise (split) Lab 18 Project Seminar

Total effort (hours): 150

Instruction language

• German

Study Level

• undergraduate

Prerequisites

• digital communications 1
• Some basics in Matlab
• Theory of signals and systems

Textbooks, Recommended Reading

• Johnson, Sethares: Telecommunication Breakdown
• Sklar: „Digital Communications“, Prentice Hall, 2001
• Roppel: „Grundlagen der digitalen Kommunikationstechnik“, Hanser 2006
• Proakis: „Digital Communications“, McGraw, 2000

Instructors

• Prof. Dr. Dettmar

Supporting Scientific Staff

• Dipl.-Ing. Martin Seckler

Transcipt Entry

Introduction to digital communications 2

Assessment

Type
oE	normal casel (for large numbers of assessments wE)

Total effort [hours]
oE	10

Frequency: 2 per year

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Course components

Lecture/Exercise

Objectives

Contents

• band pass transmission
  • modulation
  • signal mixing, Superhet-receiver, direct conversion
• digital modulation schemes
  • signal spaces
  • ASK/PSK
  • QAM
• Träger- , Takt- und Rahmensynchronisation
  • carrier phase estimation
  • PLL, Costas-Loop
  • Decision directed phase tracking and timing recovery
  • synchronisation and training sequences
• Automatic Gain Control
  • review of sampling and alaising
  • sub-conversion and sampling
  • AGC
  • AGC and fading
• OFDM
  • multi carrier transmission
  • frequency range based signal design
  • cyclic prefix
  • equalisation
  • system examples

Acquired Skills

• analyse and understand telecom systems
• rate and compare the performance of transmit systems
• compute and estimate performances
• use algorithms for carrier based transmission techniques and synchronisation
• problem solving

Additional Component Assessment

Lab

Objectives

Acquired Skills

• analyse and simulate transmission links
• compare and rate algorithms and procedures for digital communicaion, synchronisation, and AGC

Operational Competences

• build a transmission link under Matlab/Simulink or CCSS
• compare different technical solutions
• perform simulations, interprete the results
• measure transmission systems
• self contained experimental work using the available simulation tools

Additional Component Assessment

Type
fAP	Three eTests 15 min each
fIN	interview during lab work

Contribution to course grade
fAP	lab admission
fIN	attestation/exam admission

Frequency: 1 per Jahr