| Project/Area Number |
16K18099
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Communication/Network engineering
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| Research Institution | Kitami Institute of Technology |
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Principal Investigator |
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| Research Collaborator |
MUGIKURA Seiichi
SAKMOTO Shun
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 水中音響通信 / ドップラーシフト / OFDM / リサンプリング / 情報通信工学 |
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| Outline of Final Research Achievements |
In underwater acoustic communication, communication performance is unstable due to the influence of the Doppler shift when a communication equipment is moving.
We have studied a method of signal processing in the communication system to realize the Doppler shift resistance. We proposed the Doppler RAKE reception that concurrently processes multiple resampling in OFDM system and provides stable communication even in the situation where the transmitter moves irregularly. The effectiveness of the proposed method is verified by computer simulation, pool test and sea area test.
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| Academic Significance and Societal Importance of the Research Achievements |
水中音響通信において、従来研究では通信装置が一定速度を移動するときに発生するドップラーシフトのみに対応していたが、不規則に移動する場合についての対応はほとんど研究されていなかった。本研究は通信装置が不規則に移動するドップラーシフトにも対応することができた。本研究成果の手法は水中ロボットの遠隔操作における無線通信手段を実現する上で有用であると考えられる。
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