| 极大熵谱在径流时间序列周期分析中的应用 |
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| 引用本文： | 赵雪花,黄强,吴建华.极大熵谱在径流时间序列周期分析中的应用[J].太原理工大学学报,2007,38(6):540-542,550. |
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| 作者姓名： | 赵雪花 黄强 吴建华 |
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| 作者单位： | 1. 太原理工大学,水利科学与工程学院,山西,太原,030024
2. 西安理工大学,水电学院,陕西,西安,710048 |
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| 基金项目： | 山西省青年科研项目;山西省自然科学基金 |
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| 摘 要： | 针对年径流序列存在多年变化周期,但径流时间序列变化受诸多因素影响,存在着多种不确定性的情况,笔者采用极大熵谱分析来提取径流时间序列的周期成分,对黄河上游贵德站年径流时间序列进行周期分析,得出贵德站具有12.5,5.9,4和3年的主周期。结果证明该方法可行,同时其结论为研究径流预测提供了科学的依据。
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| 关 键 词： | 极大熵 波谱分析 年径流 不确定性 |
| 文章编号： | 1007-9432（2007）06-0540-03 |
| 修稿时间： | 2007-03-25 |
The Application of Maximum Entropy Spectrum in the Periodic Analysis of Runoff Time Serial |
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| ZHAO Xue-hua,HUANG Qiang,WU Jian-hua.The Application of Maximum Entropy Spectrum in the Periodic Analysis of Runoff Time Serial[J].Journal of Taiyuan University of Technology,2007,38(6):540-542,550. |
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| Authors: | ZHAO Xue-hua HUANG Qiang WU Jian-hua |
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| Institution: | 1. College of Water Resource Science and Engineering of TUT , Taiyuan 030024, China; 2. Institute of Water Resource and Hydroelectric ,Xi~ an University of Technology, Xi~ an 710048,China |
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| Abstract: | This paper applies maximum entropy spectrum analysis to extract periodic component of runoff time serial, the analysis and calculation are conducted in combination with a real example of annual runoff series at the Guide station in the upper of Yellow River, and the result shows that annual runoff has 12.5, 5.9, 4 and 3 years significant periods at the Guide station. The conclusion illustrates the feasibility of this method and provides scientific data for runoff forecasting. |
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| Keywords: | maximum entropy spectrum wave spectrum analysis annual runoff uncertainty |
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