OPENHOUSE 2015

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Exhibition

8K

1-5

Advanced Wide Band Satellite Transmission System

Large-capacity transmission system for 8K broadcasting

Outline

We have been developing large-capacity satellite transmission technology for 8K broadcasting. We are conducting transmission experiments using a 12-GHz-band broadcasting satellite in anticipation of 8K test broadcasting starting in 2016. In this exhibit, signals are transmitted from the NHK Broadcast Center and received at NHK STRL via the actual broadcasting satellite. 

Features

・16APSK*1 modulation scheme that can transmit more information than existing schemes

・LDPC code that can improve error-correcting capability

◯This research is being conducted as part of a government-sponsored project of the Ministry of Internal Affairs and Communications, titled“Research & development of efficient use of frequency resource for ultra-high definition satellite and terrestrial broadcasting system”.

◯This system has been adopted as a ministerial ordinance, as well as an announcement, and a standard*2 of the Association of Radio Industries and Business.

*1 16APSK (Amplitude and Phase Shift Keying): A modulation scheme that transmits four bits of information simultaneously by changing the amplitude and phase of the carrier in 16 different ways.

*2 Standard: ARIB STD-B44 "Transmission System for Advanced Wide Band Digital Satellite Broadcasting"

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