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正交紧支复小波的生成及其在电力系统的应用
引用本文:陈祥训.正交紧支复小波的生成及其在电力系统的应用[J].中国电机工程学报,2000,20(7):83-88.
作者姓名:陈祥训
作者单位:中国电力科学研究院,北京,100085
摘    要:分析了小波相频特性对小波分析效果的影响,说明了开发具有多种多相频特性的正交紧支复小波的重要性以及这类小波的生成方法,同时还提出采用复小波变换的复合信息代替通常采用的简单信息的方案。文中大量的电力系统仿真应用实例表明,在许多应用场合,按该文方法构造的具有合适相频特性的复小波优于相应的实小波,复合信息优于相应的简单信息。

关 键 词:正交紧支复小波  小波分析  电力系统  系统故障
修稿时间:2000-01-11

COMPLEX COMPACTLY-SUPPORTED ORTHONORMAL WAVELETS AND THEIR APPLICATIONS IN POWER SYSTEM
CHEN Xiang-xun.COMPLEX COMPACTLY-SUPPORTED ORTHONORMAL WAVELETS AND THEIR APPLICATIONS IN POWER SYSTEM[J].Proceedings of the CSEE,2000,20(7):83-88.
Authors:CHEN Xiang-xun
Abstract:It is shown that complex compactly supported orthonormal wavelets with various phase spectrums are useful in power system. This paper describes how to construct this kind of wavelets from existing real compactly supported orthonormal wavelets, and how to take combined information (CI) instead of simple information (SI) used commonly from a complex wavelet transform. A lot of simulated applications in power system demonstrate that these complex wavelets are more superior to original real ones and so is CI to SI.
Keywords:complex wavelets  phase spectrum  combined information  wavelet analysis
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