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

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Presentation on theme: "BRAZILIAN DIGITAL TELEVISION TESTS SET-ABERT Group - BRAZIL April / 2000."— Presentation transcript:

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

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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 Fernando Wiktor Q. Pietrukowicz


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