Technology - Digital Broadcasting 2 - Television - DVB

Synopsis

We discuss the distinctions between digital broadcasting for stationary video receivers, for mobile receivers and for small handheld devices. We then introduce some of the major parts of the DVB standards which are used in most countries for digital video broadcasting, including DVB-T and DVB-T2 and DVB-S.

Table of Contents

  • 1. Synopsis
  • 2. Introduction
    • 2.1 Distinctions between television, sound and mobile broadcasting
    • 2.2 ITU recommendations
    • 2.3 Encoding, modulation and transmission subsystems
  • 3. Digital television broadcasting
    • 3.1 Digital Video Broadcasting (DVB)
    • 3.2 DVB-T
      • 3.2.1 OFDM modulation with QPSK and QAM
      • 3.2.2 Fast Fourier Transform (FFT)
      • 3.2.3 Symbol and guard times
      • 3.2.4 Multipath reception
      • 3.2.5 Forward Error Correction and interleaving
      • 3.2.6 Convolutional coding
      • 3.2.7 Scalable coding and hierarchical transmission
      • 3.2.8 Single Frequency Networks (SFN)
      • 3.2.9 Mobile reception and Doppler shift
      • 3.2.10 Transmission between analogue channels
      • 3.2.11 MPEG-2 video compression
    • 3.3 DVB-T2
      • 3.3.1 HDTV and MPEG-4
      • 3.3.2 16k and 32k FFT modes
      • 3.3.3 Increased sub-carrier utilisation
      • 3.3.4 Fewer pilot tones
      • 3.3.5 Guard intervals
      • 3.3.6 LDPC FEC and BCH coding
      • 3.3.7 256QAM
      • 3.3.8 Wide range of RF bandwidths
      • 3.3.9 MISO antenna systems
      • 3.3.10 Constellation rotation
      • 3.3.11 PAPR optimisation
      • 3.3.12 Generic Stream Encapsulation
      • 3.3.13 Statistical multiplexing
      • 3.3.14 Time-Frequency Slicing (TFS)
      • 3.3.15 Commercial implications of large SFNs with TFS
    • 3.4 DVB-S
    • 3.5 DVB-S2
      • 3.5.1 Amplitude Phase Shift Keying (APSK)
      • 3.5.2 Improved FEC and coding
      • 3.5.3 Hierarchical transmission
      • 3.5.4 Adaptive Coding and Modulation (ACM)
  • 4. Related reports

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Focus Report Profile

Technologies

Broadcasting
Digital Media

Number of pages 19

Status Archived

Last updated 12 Aug 2008
Update History

Analyst: Robin Whittle

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