| 講演名 | 2009-11-02 Measurement of Scene Coherence Time of Sea Surface Based on Velocity Bunching Model and C-Band RADARSAT-1 Data with Application to Waveheight Estimation(WSANE 2009 (Workshop for Space, Aeronautical and Navigational Electronics)) , |
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| 抄録(英) | The purpose of this study is to investigate the scene coherence (or decorrelation) time of ocean surface using the velocity bunching model of SAR (Synthetic Aperture Radar) azimuth wave imagery, and suggest a possible application to estimating waveheight of azimuth traveling waves. The wavelength and propagation direction of ocean waves in the C-band RADARSAT-1 data are compared with those of the numerical wave forecast model by JWA (Japan Weather Association). The JWA waveheight data are then entered in the velocity bunching model to estimate the coherence time of the sea surface. The result showed the estimated coherence time of approximately 0.02s which is similar to the previously estimated values by along-track InSAR (Interferometric SAR). Once the coherence time is known, the waveheight of azimuth traveling ocean waves can be estimated from the velocity bunching model, under the assumption that the sea surface has the same coherence time. |
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| キーワード(英) | Scene coherence time / ocean waves / velocity bunching / RADARSAT-1 |
| 資料番号 | SANE2009-97 |
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| 研究会 | SANE |
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| 開催期間 | 2009/10/26(から1日開催) |
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| 申込み研究会 | Space, Aeronautical and Navigational Electronics (SANE) |
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| 本文の言語 | ENG |
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| タイトル（英） | Measurement of Scene Coherence Time of Sea Surface Based on Velocity Bunching Model and C-Band RADARSAT-1 Data with Application to Waveheight Estimation(WSANE 2009 (Workshop for Space, Aeronautical and Navigational Electronics)) |
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| キーワード(1)（和/英） | / Scene coherence time |
| 第 1 著者 氏名（和/英） | / Shunsuke Taniguci |
| 第 1 著者 所属（和/英） | Department of Computer Science, School of Electrical and Computer Engineering, National Defense Academy |
| 発表年月日 | 2009-11-02 |
| 資料番号 | SANE2009-97 |
| 巻番号（vol） | vol.109 |
| 号番号（no） | 265 |
| ページ範囲 | pp.- |
| ページ数 | 4 |
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