| 局域波自适应时频分析特性研究 |
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| 引用本文： | 王孝通,盖强,张海勇,徐晓刚.局域波自适应时频分析特性研究[J].电子学报,2005,33(12):2187-2190. |
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| 作者姓名： | 王孝通 盖强 张海勇 徐晓刚 |
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| 作者单位： | 海军大连舰艇学院,辽宁,大连,116018;海军大连舰艇学院,辽宁,大连,116018;海军大连舰艇学院,辽宁,大连,116018;海军大连舰艇学院,辽宁,大连,116018 |
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| 摘 要： | 局域波自适应时频分析是处理非平稳数据较为有效的新方法.该文较系统地研究了局域波分析的瞬时频率估计、分解的物理意义、高于小波分析的时频分辨率、没有Wigner-Ville时频分布交叉项和分解二维图像的特性.
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| 关 键 词： | 非平稳数据 自适应时频分析 二维局域波分析 |
| 文章编号： | 0372-2112（2005）12-2187-04 |
| 收稿时间： | 2005-04-01 |
| 修稿时间： | 2005-04-012005-07-08 |
Study of Adaptive Time-Frequency Analysis Characteristics of the Local Wave |
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| WANG Xiao-tong,GAI Qiang,ZHANG Hai-yong,XU Xiao-gang.Study of Adaptive Time-Frequency Analysis Characteristics of the Local Wave[J].Acta Electronica Sinica,2005,33(12):2187-2190. |
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| Authors: | WANG Xiao-tong GAI Qiang ZHANG Hai-yong XU Xiao-gang |
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| Affiliation: | Dalian Naval Academy,Dalian 116018,China |
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| Abstract: | Adaptive Local Wave Analysis(LWA) is a new effective method for processing non-stationary data.In this paper,the characteristics of the LWA,such as the physical meaning of the intrinsic mode functions,instantaneous frequency,having better joint time-frequency resolution than Wavelet Analysis,without cross terms that exist in Wigner-Ville distribution analysis,and 2-dimension LWA application in image processing,are discussed. |
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| Keywords: | non-stationary data adaptive time-frequency analysis 2-dimesion Local Wave Analysis |
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