2011 Fiscal Year Final Research Report
Research for Recognition of Ships by Underwater Sound
| Project/Area Number |
21760674
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Naval and maritime engineering
|
|---|
| Research Institution | National Maritime Research Institute |
|---|
Principal Investigator |
IMASATO Motonobu 独立行政法人海上技術安全研究所, 運航・物流系, 主任研究員 (80443240)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Keywords | 海洋探査・機器 / 水中音響 / 海上監視 |
|---|
| Research Abstract |
An early warning system for sensing suspicious ships approaching the important power plants and facilities located on coastlines has become necessary. Thus, we developed a buoy equipped with the maritime surveillance system.
In this report, the results of sensing underwater sound from ships on the actual sea are presented. The underwater sound was recorded with hydrophones mounted on an observation ship and was analyzed by the linear prediction method. The method used to detect underwater sound of ships approaching the observation ship was evaluated. Results show that this technique can be a useful method for real-time underwater sound monitoring. We expect that this surveillance buoy system will be useful in predicting the presence of dangerous ships or poaching boats by sensing underwater sound.
|
