摘要
介绍S.L.Peng的基于瞬时频率和局部窄带信号的自适应分解方法,对两类局部窄带信号分解方法进行分析与研究。这种算法选取局部窄带信号作为基信号,通过构造奇异线性算子,从其零空间中提取局部窄带信号,从而实现信号的自适应分解,并通过与MP算法的比较,给出这两种算法的内在联系。
This paper introduces S. L. Peng＇ s adaptive signal decomposition based on instantaneous frequency and local narrow band signals, and then analyzes two types of local narrow band signal decomposition method. This algorithm selects local narrow band signals as the base signal, and extracts local narrow band signals from the null space of a singular local linear operator, so as to achieve the adaptive signal decomposition. By comparing with the Matching Pursuit （MP） method, it gives their internal relations.
出处
《计算机与现代化》
2011年第1期32-35,共4页
Computer and Modernization
关键词
瞬时频率
局部窄带信号
自适应分解
instantaneous frequency
local narrow band signal
adaptive signal decomposition
