摘要
在论述多小波基本理论及其分解重构算法的基础上,基于多小波分解重构算法的扩展与正交多小波的对称/反对称特性,提出了一种改进的分解重构算法,并以SA4多小波为例,对电力系统高压输电线故障暂态信号进行分解与重构,证明了其有效性。
The basic theory of multiwavelets and its decomposition & reconstruction algorithm are introduced and discussed in this paper. Based on the expansion of the decomposition & reconstruction algorithm and the symmetry/asymmetry property of the orthogonal multiwavelet, the improved decomposition & reconstruction algorithm is proposed. SA4 multiwavelets are taken as an example. Transient fauet signals on the high voltage transmission lines in the power system are decomposed and reconstructed, thus proving the effectiveness of the improved algorithm.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2003年第5期45-49,共5页
Journal of the China Railway Society
基金
国家自然科学基金资助(59977019)
四川省应用基础研究项目资助(02GY029-039)
关键词
信号处理
多小波
分解与重构
算法
signal processing
multiwavelet
decomposition and reconstruction
algorithm
