2016 Fiscal Year Final Research Report
A Method of Determining Broadcaster Sent Emergency Wake-Up Signals for ISDB-T Terrestrial Digital Television Receivers
| Project/Area Number |
26420368
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Communication/Network engineering
|
|---|
| Research Institution | Hiroshima City University |
|---|
Principal Investigator |
|
|---|
| 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
|
