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| HHT端点效应的最大Lyapunov指数边界延拓方法 | |
| 引用本文： | 蔡艳平,李艾华,张玮,许平. HHT端点效应的最大Lyapunov指数边界延拓方法[J]. 仪器仪表学报, 2011, 32(6): 1330-1336 |
| 作者姓名： | 蔡艳平 李艾华 张玮 许平 |
| 作者单位： | 1. 第二炮兵工程学院502教研室,西安,710025 2. 第二炮兵工程学院502教研室,西安,710025;西安交通大学电信学院,西安,710049 3. 第二炮兵工程学院502教研室,西安,710025;西安交通大学机械制造系统工程国家重点实验室,西安,710049 |
| 基金项目： | 国防预研项目，学院创新性基础研究基金 |
| 摘 要： | 针对HHT(Hilbert-Huangtransfrom)的端点效应问题,提出基于最大Lyapunov指数预测模型的HHT边界延拓方法.该方法通过相空间重构,并利用时间序列相似点的演化行为,采用最大Lyapunov指数预测模型来对时间序列的端点进行预测,有效避免了不同边界条件的三次样条插值和Hilbert变换频谱泄露对... |
| 关 键 词： | HHT 经验模态分解 端点效应 边界延拓 Lyapunov 故障诊断 |
HHT end effect processing method based on maximum Lyapunov index boundary extension model |
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| Cai Yanping,Li Aihua,Zhang Wei,Xu Ping. HHT end effect processing method based on maximum Lyapunov index boundary extension model[J]. Chinese Journal of Scientific Instrument, 2011, 32(6): 1330-1336 | |
| Authors: | Cai Yanping Li Aihua Zhang Wei Xu Ping |
| Affiliation: | Cai Yanping1,Li Aihua1,Zhang Wei1,2,Xu Ping1,3(1 No.502 Staff Room,Second Artillery Engineering College,Xi'an,710025,China,2 Telegraphy Institute,Xi'an Jiaotong University,Xi'an 710049,3 State Key Laboratory for Manufacturing Systems Engineering,China) |
| Abstract: | Based on the end effect of HHT(Hilbert-Huang transform),an HHT end effect processing method based on maximum Lyapunov index boundary extension model is proposed.Firstly,the method uses phase space reconstruction to compute the maximum Lyapunov index of the signal and then uses the maximum Lyapunov index boundary extension model to predict the extreme points of the signal.Secondly,as the data sequence is extended by adding some predicted points,the HHT result is computed,and then the real HHT result is obtai... |
| Keywords: | HHT EMD end effect end extending Lyapunov fault diagnosis |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
