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
|
| Project Status |
Completed (Fiscal Year 2016)
|
| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| 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.
|
Report
(4 results)
Research Products
(22 results)
