摘要
信号分析的方法都是建立在将信号分解为正交分量的基础上。信号的正交函数集有不同的选取方法,正交函数集的变换不影响所表示的函数本身。针对不同的应用要求,讨论了实用的不同正交函数集及其选取原则,同时对新的正交函数集的应用提出了展望。
Signal analysis is all based on resolving signals to quadrate components. There are several ways to create an orthogonal function, and innate characters of signals will not change during the processing by different orthogonal functions. Different orthogonal functions will be used for different purposes. A general description of future research is offered.
出处
《武汉理工大学学报(信息与管理工程版)》
CAS
2005年第1期18-21,共4页
Journal of Wuhan University of Technology:Information & Management Engineering
关键词
正交变换
傅里叶级数
小波变换
a尺度正交的多尺度函数
orthogonal transformation
Fourier series
wavelet transformation
orthogonal multi-scaling function with dilation factor a