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Brazilian Digital Television System Evaluation for C/N Interferer White Noise Comparison

Evaluate Brazilian digital TV systems' performance based on C/N ratios with White Noise interferer in April 2000. Analysis includes ATSC, DVB, ISDB parameters like FEC, QAM, GI for data rates. Improve ISDB-T system by introducing time interleaving for better impulse noise performance.

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Brazilian Digital Television System Evaluation for C/N Interferer White Noise Comparison

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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 • ATSC: 8VSB FEC=2/3 (19,39 Mbits) • 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. Doppler Effect

  7. Field Tests Results

  8. Outdoor: Coverage

  9. Outdoor: Gap Filler

  10. Indoor Reception

  11. 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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