| Project/Area Number |
18H01444
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 21020:Communication and network engineering-related
|
|---|
| Research Institution | University of the Ryukyus |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
山田 寛喜 新潟大学, 自然科学系, 教授 (20251788)
宇野 亨 東京農工大学, 工学(系)研究科(研究院), 教授 (80176718)
|
|---|
| Project Period (FY) |
2018-04-01 – 2021-03-31
|
| Project Status |
Completed (Fiscal Year 2021)
|
| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2018: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
|
|---|
| Keywords | 海洋レーダ / 多偏波利用 / 計測システム |
|---|
| Outline of Final Research Achievements |
HF oceanographic radar has contributed to coastal engineering, environmental conservation, fisheries resource management, and coastal oceanography. In the observation of these oceanographic phenomena, backscattered signal from the ocean surface is received and various information on the ocean is obtained from their Doppler spectra. By clarifying the scattering characteristics of ships and aircrafts through simulations and experiments, and by developing signal processing techniques adapted to these characteristics, we have gained knowledge not only for oceanographic information, but also for new applications in detecting ships and flying objects beyond the horizon.
|
| Academic Significance and Societal Importance of the Research Achievements |
従来の海洋レーダでは用いられていない水平偏波も活用した、短波帯多偏波レーダとして再構築し、船舶・航空機からのエコーと海表面波浪の散乱信号を統合して扱うことを提唱し、その効果を明らかにした。特に、波浪の速度に比べ格段に高速移動する対象物のドップラー信号を抽出し、船舶や航空機の同定を可能にする信号処理法を開発しその性能を明らかにした。これにより、短波海洋レーダに関する課題の解決と新規応用分野の開拓という、二つの面から高度利用の実現(マルチユース化)を可能にした。
|
