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BRAZILIAN DIGITAL TELEVISION TESTS

BRAZILIAN DIGITAL TELEVISION TESTS. SET-ABERT Group - BRAZIL April / 2000. Systems. Evaluation of C/N. Interferer = White Noise DVB & ISDB: Choice of parameters define C/N DVB-2K : 64 QAM FEC=3/4 GI=1/16 2K ( 19,75 Mbits/s ) DVB-8K : 64 QAM FEC=2/3 GI=1/32 8K ( 18,09 Mbits/s )

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BRAZILIAN DIGITAL TELEVISION TESTS

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  1. BRAZILIAN DIGITAL TELEVISION TESTS SET-ABERT Group - BRAZIL April / 2000

  2. Systems

  3. Evaluation of C/N • Interferer = White Noise • DVB & ISDB: Choice of parameters define C/N • DVB-2K: 64 QAM FEC=3/4 GI=1/16 2K (19,75 Mbits/s) • DVB-8K: 64 QAM FEC=2/3 GI=1/32 8K (18,09 Mbits/s) • ISDB: 64 QAM FEC=3/4 GI=1/16 4K 0,1s (19,33 Mbit/s)

  4. Impulse Noise • Better performance of the ISDB-T system, by introducing time interleaving

  5. Static Multipath

  6. Multipath: Channel Simulation

  7. Multipath: Channel Simulation

  8. Multipath: Channel Simulation

  9. Multipath: Channel Simulation

  10. Multipath: Channel Simulation

  11. Doppler Effect

  12. Interference: Protection Ratio

  13. Field Tests Results

  14. Outdoor: Coverage

  15. Outdoor: Gap Filler

  16. Indoor Reception

  17. Thank You For Your Attention! • Ana Eliza Faria e Silva • afaria.cge@tvg.redeglobo.com.br • Fernando Wiktor Q. Pietrukowicz • wiktor .cge@tvg.redeglobo.com.br

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