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24 September 2014
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´óÏó´«Ã½ Research centre 60th birthday present: world's first reception of HD pictures over DTT using DVB-T2


On the 60th birthday of ´óÏó´«Ã½ Kingswood Warren, engineers from ´óÏó´«Ã½ Research & Innovation succeeded in demonstrating a working real-time demodulator capable of receiving signals compliant to the DVB-T2 standard for the very first time.

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Following the approval of the standard by the DVB on 26 June and then the successful test transmissions from Guildford on 27 June, the achievement – on Friday 29 August – is another significant milestone in the delivery of HD over Freeview.

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This is the first time anywhere in the world that a live end-to-end DVB-T2 chain has been demonstrated.

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Justin Mitchell, leader of the DVB-T2 modem development team at the ´óÏó´«Ã½, said: "Following the approval of DVB-T2 in June and the launch of test transmissions from Guildford transmitter the next day, we are delighted that on Kingswood Warren's 60th anniversary our team has been able to deliver a working demonstration of a DVB-T2 modulator and demodulator."

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There will be a demonstration of the DVB-T2 modulator and demodulator on the DVB stand 1.D81 at IBC in Amsterdam in September 2008.

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This will be accompanied by hourly talks and conference papers.

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The modulator and demodulator are available for licensing.

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Notes to Editors

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The demonstration consists of:

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A 36 Mbit/sec multiplex containing three high definition programmes each coded at 11 Mbit/sec with the latest MPEG-4 encoders

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This is fed into the prototype DVB-T2 modulator which was developed by R&I, and is currently providing the test transmissions from Guildford transmitter

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This signal is then received by the prototype DVB-T2 demodulator which was developed by R&I which demodulates the DVB-T2 signal and converts it to an MPEG transport stream

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The transport stream is then fed to an MPEG-4 decoder which displays the video on a high definition display.

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The demonstration shows several of the new features contained within the new DVB-T2 specification. These include:

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32K FFT

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1/128 guard interval

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LDPC error correction (64800 size blocks) and BCH error correction

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Rotated 256-QAM constellations

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Time interleaving

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Extended bandwidth

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The operating mode of the demonstration is: 32K 1/128 256-QAM 3/5 64800.

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SM

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Category: New Media
Date: 01.09.2008
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