Digital Broadcasting

Course Description

Digital television broadcasting systems, transmission of DTV signals via satellite, on cable and via terrestrial networks. System architecture, frequency bands, error protection coding, digital modulation techniques, useful bit rate, carrier-to-noise ratio, decoding techniques. Digital audio broadcasting system, system architecture, frequency bands, modes of operation. Planning of terrestrial broadcasting networks, multi-frequency and single frequency networks, assignments and allotment planning methods, protection of analogue services. System design for fixed, portable and mobile reception. Service information. Conditional access and return channel. Multimedia home platform. Integrated receiver decoder. Measurement techniques for digital television.

General Competencies

Deep understanding of signal processing methods used in digital broadcasting systems. Ability to select system parameters for different types of transmission media and to perform frequency planning for various network configurations. Practical skills to design, implement, maintain and modify digital broadcasting systems. Ability to perform measurements, analysis and qualified evaluation of system characteristics.

Learning Outcomes

  1. define basic types and characteristics of digital broadcasting systems
  2. explain signal processing methods in digital broadcasting systems
  3. analyze parameters that define relationship between overall and useful bit rates in different types of digital broadcasting systems
  4. compute spectrum efficiency in different types of digital broadcasting systems
  5. employ measurement techniques for digital television and interpret measurement results
  6. identify parameters that determines reception and picture/sound quality

Forms of Teaching

Lectures

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Exams

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Experiments

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Experimental Exercises

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Internship visits

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Grading Method

Continuous Assessment Exam
Type Threshold Percent of Grade Threshold Percent of Grade
Homeworks 0 % 10 % 0 % 10 %
Attendance 0 % 10 % 0 % 10 %
Mid Term Exam: Written 0 % 30 % 0 %
Final Exam: Written 0 % 50 %
Exam: Written 0 % 60 %
Exam: Oral 20 %

Week by Week Schedule

  1. Model of digital broadcasting system, differences between different audio and video broadcasting systems, advantages and disadvantages of digital broadcasting systems. Frequency bands for broadcasting, frequency allocation.
  2. Video and audio signal characteritics. Transmission bit rates and bandwidth requirements for different signal types and formats.
  3. Digital Video Broadcasting Systems, system development, charasteristics of the first and the second generation.
  4. Multiplexing and transport stream formatting. Packet IDentification (PID). Decoding Time Stamp (DTS) and Presentation Time Stamp (PTS). Program Clock Reference (PCR). Encoder/decoder synchronization.
  5. Channel coding, Foreward Error Correction (FEC). Energy dispersal, outer coding (RS, Reed-Solomon), outer interleaving, inner coding (Viterbi), inner interleaving.
  6. Satellite broadcasting. Adaptation of transport stream to satellite transmission link, outer and inner coding, filtering, modulation.
  7. DVB-S/S2 system parameters: channel bandwidth, code rate, useful bit rate, required carrier-to-noise ratio. SDTV and HDTV signal distribution.
  8. Mid-term exam.
  9. Cable televsion. Adaptation of transport stream to cable-based transmission of broadcasting signals, error protection coding, byte-to-symbol conversion, differential coding, modulation.
  10. DVB-C/C2 system parameters: symbol duration, useful bit rate, bandwidth efficiency, required carrier-to-noise ratio. Thermal noise and intermodulation. Two-way transmission.
  11. User requirements for terrestrial transmission of DVB signals. Signal processing in DVB-T coder, choosing of COFDM parameters, transmission frame arrangement.
  12. DVB-T/T2 system parameters: number of carriers, guard interval length, bandwidth efficiency, required carrier-to-noise ratio.
  13. Delivery of broadcast services to mobile receivers. DVB-H systems parameters. Digital audio broadcasting system, system architecture, frequency bands, modes of operation.
  14. Broadcasting system planning criteria, minimum receiver signal input levels, protection ratios. Multi-frequency networks, single frequency networks, network gain.
  15. Measurement techniques for digital television: quality evaluation of video source coding, checking MPEG-2 transport stream, radio frequency measurements, objective and subjective picture quality measurements at receivers.

Study Programmes

University graduate
Wireless Technologies (profile)
Specialization Course (2. semester)

Literature

W. Fischer (2008.), Digital Video and Audio Broadcasting Technology, Springer
U. Reimers (2011.), DVB: The Family of International Standards for Digital Video Broadcasting, Springer
H. Benoit (2008.), Digital Television, Third Edition: Satellite, Cable, Terrestrial, IPTV, Mobile TV in the DVB Framework, Focal Press
A. Kumar (2007.), Mobile TV: DVB-H, DMB, 3G Systems and Rich Media Applications, Focal Press

Lecturers in Charge

Laboratory exercises

Grading System

ID 127427
  Summer semester
4 ECTS
L1 English Level
L1 e-Learning
30 Lecturers
0 Exercises
6 Laboratory exercises

General

90 Excellent
78 Very Good
62 Good
50 Acceptable