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AVC course outlines
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Digital Television: Fundamentals,
Technology and Standards |
Course Description |
This course walks
students through Digital Television’s (DTV’s) benefits,
production and delivery infrastructure. Students will then acquire
practical information on subjects such as display tradeoffs,
decoding, encoding, format conversions, and baseband data stream
handling. Students will enhance their knowledge on the principles
of video transmission, as well as the challenges of data delivery
through terrestrial, satellite and cable networks. In addition,
social issues such a conditional access, affordability, public
spectrum auctions and the regulatory process for generating
new public standards will be covered.
This course provides a structured introduction to theory behind
the technology, and an in depth analysis of the technologies’
possibilities and limitations. Students will gain an understanding
of DTV’s layered architecture, enablers and compatibility
issues with existing equipment.
Additional topics
include: fundamentals of digital compression and modulation
techniques relevant to their application in the digital TV
standards, signals and formats, DTV transmission requirements,
multiplexing, MPEG switching, splicing, constant and variable
bitrates, audio components, error concealment, relevant SMPTE
and ITU-R standards, physical and virtual channel, system/service
information (SSI), Program and Systems Information Protocol
(PSIP), and more.
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Learning Objectives |
After completing
this course, the student will be able to:
1. Use and formulate background for understanding the DTV
standards
2. Discuss and explain enabling technologies
3. Explain the fundamentals of underlying modulation techniques
4. Discuss specifics of the MPEG-2 Delivery approaches
5. Understand specifics of ATSC, DVB-B-C Systems
6. Discuss and explain critical design issues
7. Discuss technical aspects related to copy protection
8. Discuss basic problems in the system integration
9. Discuss opportunities and obstacles
10. Explain and apply relevant SMPTE and ITU-R standards
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Intended Audience |
| The course is intended for video engineers who will have to
use the technology. The mathematics of compression techniques
are discussed briefly, but the focus of the course provides
a qualitative understanding of the processes involved and an
understanding of real world issues and direction towards possible
solutions.
Technical professionals, such as software, hardware, and
mechanical engineers, scientists, technical marketers, technical
product managers, technical project managers, and engineering
managers will also benefit from this course.
Engineers, technical
management, system architects, technology analysts, systems
developers and integrators, etc., who are interested in getting
a comprehensive overview of the Digital TV technology, standards,
and its opportunities would greatly benefit from this course. |
Prerequisites |
Familiarity
with analog and digital video would be helpful, but not
required to take this course. |
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Course Content Outline |
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| ANALOG
TV: Basic concepts, SD, HD
- Raster scan; progressive/interlace, frame and field
- Aspect ratios
- SDTV and HDTV scanning
- Color space: Rec. 601 SDTV and Rec. 709 HDTV
- Gamma correction
- Aspect ratio vs. scan rate 480i, 480p, 720p, and up
DIGITAL TV: Basic concepts, SD, HD
- Why digital?
- Sampling theorem
- A/D and D/A conversion
- Rec. 601 SDTV and Rec. 709 HDTV
- Pixel aspect ratio
Digital data in the TV channel: Channel coding and
modulation
Channel coding
- major binary codes
Digital Data in TV channel
Channel coding and modulation
- constellation diagrams
Modulation schemes of interest and there performance:
vestigial sideband (VSB)
quaternary phase shift keying (QPSK), 8PSK
quadrature amplitude modulation (16QAM, 64QAM, 256QAM)
coded orthogonal frequency division multiplexing (COFDM)
Concepts randomizing, error correction and interleaving
Bandwidth, baud, symbol, bit, and bit rate
DTV Receiver
Receiver architecture
Signal reception
Transport decoding and processing
ATSC tuner
Display systems
Display technologies
Digital cable ready requirements
Aspect ratio conversions; AFD, closed captions 608/708
Signal processing and artifacts; scaling, etc.
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Audio
and video compression for DTV
Audio compression for DTV
Dolby AC-3, MPEG AAC
Video compression for DTV
Need for data compression
Information theory concepts
Visual Psychophysics
Predictive coding
- Motion estimation
Transform coding
Hybrid coding
MPEG-2; profiles and levels, data syntax, transport stream
AVC
End-to-end MPEG-2 transport: broadcast
Broadcast standards
Modulations used in the broadcast standards
ATSC and DVB
Security for broadcast networks
Lip-sync, latency
Cable and satellite DTV distribution
Cable and satellite TV delivery
Major standards for the cable and satellite TV delivery
Conditional access, authorization and control
Major trends
Program and Systems Information Protocol (PSIP)
MPEG-2 essentials for the PSIP
Multiplexing, TS, STD, sync, PSI
Primary issues related to DTV that PSIP was developed
to address
Tables included in the PSIP for Cable Applications
Physical and virtual channel
PSIP for Cable Applications
PSIP standards
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