書誌事項
- タイトル別名
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- Real-Time Higher Order Spectral Analysis of Non-stationary Ship Motion Data
- 非定常船体運動のリアルタイム高次スペクトル解析[含 質疑応答]
- ヒテイジョウ センタイ ウンドウ ノ リアルタイム コウジ スペクトル カイセキ ガン シツギ オウトウ
この論文をさがす
抄録
A real-time algorithm of higher order spectral analysis is proposed in order to investigate the non-linear and non-stationary ship motions. The algorithm is based on the time-varying vector auto-regressive (TVVAR) modeling and can be considered as an extension of the instantaneous power spectral analysis. The TVVAR model is fitted to the data using the Kalman filter algorithm and the instantaneous higher order spectra can be evaluated by using the TVVAR coefficients. In order to examine the validity of the proposed algorithm, numerical simulations of the real-time estimation of instantaneous higher order spectra was carried out based on the full scale ship motion data. The accuracy of the proposed algorithm was investigated by comparing with the stationary analysis based on the FFT. Furthermore, the algorithm was extended to the trispectral analysis and a result was shown to demonstrate the usefulness of the proposed algorithm.
収録刊行物
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- The Journal of Japan Institute of Navigation
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The Journal of Japan Institute of Navigation 124 (0), 297-302, 2011
公益社団法人 日本航海学会
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詳細情報 詳細情報について
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- CRID
- 1390282680458947840
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- NII論文ID
- 110008593688
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- NII書誌ID
- AN00188841
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- ISSN
- 21873275
- 03887405
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- NDL書誌ID
- 11076351
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可