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| 局域波分解算法 | |
| 引用本文： | 张海勇,贾传荧,于波. 局域波分解算法[J]. 系统工程与电子技术, 2005, 27(4): 632-634 |
| 作者姓名： | 张海勇 贾传荧 于波 |
| 作者单位： | 1. 大连舰艇学院信息工程系,辽宁,大连,116018;大连海事大学,辽宁,大连,116023 2. 大连海事大学,辽宁,大连,116023 3. 大连舰艇学院信息工程系,辽宁,大连,116018 |
| 基金项目： | 辽宁省博士启动基金 (2 0 0 2 10 5 1)，中国博士后科学基金 (2 0 0 3 0 3 3 3 66)资助课题 |
| 摘 要： | 局域波分析是一种新的时频分析方法,该方法的关键是局域波分解算法,它的好坏直接影响到基本模式分量的精度,进而影响到它的实际应用。综述了各种局域波分解算法,讨论了各种算法的性能和特点,指出了改善局域波分解性能的具体措施和应用局域波分解算法应注意的有关问题,展望了局域波分解算法的可能发展。对局域波分解算法的改进和局域波分析的应用具有参考价值。 |
| 关 键 词： | 非平稳信号 局域波分解 基本模式分量 瞬时频率 边界效应 |
| 文章编号： | 1001-506X(2005)04-0632-03 |
| 修稿时间： | 2004-02-11 |
Algorithms of local wave decomposition |
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| ZHANG Hai-yong,JIA Chuan-ying,YU Bo. Algorithms of local wave decomposition[J]. System Engineering and Electronics, 2005, 27(4): 632-634 | |
| Authors: | ZHANG Hai-yong JIA Chuan-ying YU Bo |
| Affiliation: | ZHANG Hai-yong~ |
| Abstract: | Local wave analysis is a new method for analyzing nonstationary signals, the key of which is the algorithm of local wave decomposition. The algorithm has a direct effect on the accuracy of intrinsic mode functions, and in turn affects its applications. The algorithms of local wave decomposition are summarized and their characteristics and performances are discussed. Meanwhile, the specific measures to improve the performances of local wave decomposition are put forward. The possible development of local wave decomposition algorithm is forecasted. The research is helpful to the improvement of local wave decomposition algorithm and the applications of local wave analysis. |
| Keywords: | nonstationary signal local wave analysis local wave decomposition intrinsic mode function instantaneous frequency end effects |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |