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2016 Fiscal Year Final Research Report

A Method of Determining Broadcaster Sent Emergency Wake-Up Signals for ISDB-T Terrestrial Digital Television Receivers

Research Project

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Project/Area Number 26420368
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Communication/Network engineering
Research InstitutionHiroshima City University

Principal Investigator

Takahashi Satoshi  広島市立大学, 情報科学研究科, 准教授 (60359106)

Project Period (FY) 2014-04-01 – 2017-03-31
Keywords地上ディジタルテレビ / ISDB-T / 緊急警報放送 / EWS
Outline of Final Research Achievements

In emergency such as earthquake and tsunami, an ISDB-T digital television broadcaster would send a special signal to automatically wake up their receivers. However, the mechanism at the receiver occasionally causes wrong alerts (false alarms) due to the reception bit errors. Therefore, a method of reducing false alarms has been proposed through this research. In addition to the wake-up signal, the proposed method uses the parity, not for the original purpose of error correction, but only for reliably determining the wake-up signal. Comparing it with the conventional methods, the proposed method reduced the false alarms less than one-thousandth.

Free Research Field

工学

URL: 

Published: 2018-03-22  

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