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| Huang变换在地震波信号纠偏中的应用 | |
| 引用本文： | 石春香,罗奇峰,郭忠印. Huang变换在地震波信号纠偏中的应用[J]. 同济大学学报(自然科学版), 2005, 33(7): 895-899 |
| 作者姓名： | 石春香 罗奇峰 郭忠印 |
| 作者单位： | 1. 同济大学,道路与机场工程系,上海,200092 2. 同济大学,结构工程与防灾研究所,上海,200092 |
| 基金项目： | 国家自然科学基金资助项目(50378071) |
| 摘 要： | 一种新的信号处理方法Huang变换能够提取信号的均值或趋势，而对地震加速度记录进行二次积分得到较长时间内的位移时程会“飘离”零线，据此通过Huang变换后固有模态函数分量信息重构推导Huang变换在地震波信号纠偏中的原理．为了验证其应用性，从波形、反应谱和结构位移反应进行实例比较分析，结果得出Huang变换在地震波信号纠偏中有一定的应用前景。 |
| 关 键 词： | 地震波 Huang变换 信号纠偏 固有模态函数 信息重构 结构位移反应 |
| 文章编号： | 0253-374X(2005)07-0895-05 |
Application of Huang Transform in Earthquake Signal Correction |
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| SHI Chun-xiang,LUO Qi-feng,GUO Zhong-yin. Application of Huang Transform in Earthquake Signal Correction[J]. Journal of Tongji University(Natural Science), 2005, 33(7): 895-899 | |
| Authors: | SHI Chun-xiang LUO Qi-feng GUO Zhong-yin |
| Affiliation: | SHI Chun-xiang1,LUO Qi-feng2,GUO Zhong-yin1 |
| Abstract: | A new time-series method,namely Huang transform can pick up the mean value or trend of signals. The displacement time history curve got by integrating an original acceleration data can usually deviate from time axes.The paper educes the principle that Huang transform is applied in earthquake signal correction from the reconstruction of intrinsic mode function.To verify its application,we compared curve shapes,their response spectra and structural displacement response by examples.The results showed that Huang transform is promising in earthquake signal correction. |
| Keywords: | earthquake wave Huang transform signal correction intrinsic mode function information re- construction structural displacement response |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |