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Article | REF: TE6149 V1

Digital Terrestrial Television - 2nd generation, DVB-T2 system: Overview

Authors: Jean-Noël GOUYET, Sylvie KALINOWSKI

Publication date: February 10, 2019

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8. Conclusion

This article first presents the context in which a 2nd generation digital terrestrial television system, DVB-T2, was developed: competition from other distribution systems, increasing production of HD and then UHD images, new video and audio compression formats (HEVC/H.265, Dolby E-AC3). The demanding specifications led to the use of techniques developed, for example, for DVB-S2 for satellite broadcasting (error-correcting detector codes, for example), and to the adoption of other innovative techniques: Physical Layer Pipes, modulation constellation rotation, MISO. The resulting performances have improved transmission capacity (by 30-50%), robustness, service flexibility and transmitter power savings.

The deployment of digital terrestrial television (and digital radio) is largely due to the performance of the OFDM modulation system, which is now used by other communication...

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