| 信号快速带通滤波方法在海洋信号分析中的应用 |
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| 引用本文： | 张立振.信号快速带通滤波方法在海洋信号分析中的应用[J].海洋科学进展,2008,26(1):18-25. |
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| 作者姓名： | 张立振 |
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| 作者单位： | 中国海洋大学,应用数学系,山东,青岛,266071 |
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| 基金项目： | 致谢：本文写作过程中,得到了徐德伦教授的精心指导和全力帮助,文中所用风浪和风速数据由吕红民教授提供. |
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| 摘 要： | 借助于离散"解析"信号提出了一种对信号进行快速滤波的方法.与传统方法比较,手续简单,快速有效,尤其适用复杂多变的海洋长信号的滤波.以2个典型信号的带通滤波为例,验证了快速滤波方法的有效性,2个复杂海洋信号的滤波结果表明,此滤波方法在海洋信号分析中有应用意义.
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| 关 键 词： | 快速滤波 快速傅里叶变换 离散"解析"信号 波群 |
| 文章编号： | 1671-6647（2008）01-0018-08 |
| 收稿时间： | 2007-02-07 |
| 修稿时间： | 2007年2月7日 |
Fast Signal Band-pass Filtering Method and Its Application in Analyzing Ocean Signal |
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| ZHANG Li-zhen.Fast Signal Band-pass Filtering Method and Its Application in Analyzing Ocean Signal[J].Advances in Marine Science,2008,26(1):18-25. |
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| Authors: | ZHANG Li-zhen |
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| Abstract: | In this paper, a fast signal filtering method is suggested by means of discrete analytical signals. Compared with the traditional methods, this method is simpler in procedure, faster and more efficient in computation, and especially suitable for filtering the long ocean signal. The fast filtering method is validated by taking two band-pass filtering cases of typical signals as an example, and it is shown from the illtered results of two complicated ocean signals that the filtering method has applied significance the ocean signals. |
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| Keywords: | fast filtering fast Fourier transform discrete analytical signal wave group |
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