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| 分析海浪方向谱的扩展本征矢方法Ⅰ.方法的导出 | |
| 引用本文： | 管长龙,文圣常,张大错.分析海浪方向谱的扩展本征矢方法Ⅰ.方法的导出[J].海洋与湖沼,1995,26(1):58-62. |
| 作者姓名： | 管长龙 文圣常 张大错 |
| 作者单位： | 青岛海洋大学物理海洋研究所!青岛，266003，青岛海洋大学物理海洋研究所!青岛，266003，青岛海洋大学物理海洋研究所!青岛，266003 |
| 基金项目： | 国家自然科学基金!48970261 |
| 摘 要： | 基于交叉谱矩阵可以按本征值划分为信号和含有噪音部分的思想，提出了一种自直接测量数据估计海浪方向谱的方法。该方法称为扩展本征矢方法（EEV），可应用于单点测量系统、仪器阵列以及由二者构成的复合阵列。现有的某些估计方法（如最大似然方法及其扩展形式等）仅是此方法的某种特例。 |
| 关 键 词： | 海浪 方向谱 估计方法 本征矢 |
| 收稿时间： | 1993/9/30 0:00:00 |
| 修稿时间： | 1993/12/15 0:00:00 |
AN EXTENDED EIGENVECTOR METHOD FOR ESTIMATION OF DIRECTIONAL SPECTRA OF SEA WAVES I. DERIVATION OF THE METHOD |
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| Guan Changlong,Wen Shengchang and Zhang Dacuo.AN EXTENDED EIGENVECTOR METHOD FOR ESTIMATION OF DIRECTIONAL SPECTRA OF SEA WAVES I. DERIVATION OF THE METHOD[J].Oceanologia Et Limnologia Sinica,1995,26(1):58-62. |
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| Authors: | Guan Changlong Wen Shengchang and Zhang Dacuo |
| Institution: | Institute of Physical Oceanography, Ocean University of Qingdao, Qingdao 266003;Institute of Physical Oceanography, Ocean University of Qingdao, Qingdao 266003;Institute of Physical Oceanography, Ocean University of Qingdao, Qingdao 266003 |
| Abstract: | Based on the idea that the cross-spectral matrix can be partitioned into noiseand signal components determined by the eigenvalues of the matrix, this new methodfor estimation of the directional spectra of sea waves is called extended eigenvectormethod (EEV) and can be applied to point, staff array and arbitrarily mixedinstrument array measurements. For a mixed staff array with M wave properties,the estimated directional spectrum of sea waves from the EEV is expressed asThe EEV is data adaptive and nonlinear. The maximum Iikelihood method(MLM) for estimating directional spectrum, the extension of the MLM (EMLM)and the eigenvector method (EV) for pitch/roll buoy data are only subsets of theEEV. |
| Keywords: | Sea wave Directional spectrum Estimation method Eigenvector |
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