摘要
针对随机时间序列载荷激励下的非线性系统,提出一种基于Z变换的递归方法.对于所获得的响应时间序列的识别,建议了一种离散小波变换(DWT)的技术.
For a non-linear system excited by a stochastic load which is expressed as a time series, a recursive method based on the Z-transform was presented. To identify the obtained response time seties, a discrete wavelet transform (DWT) technique was proposed.
出处
《应用数学和力学》
EI
CSCD
北大核心
2007年第11期1318-1324,共7页
Applied Mathematics and Mechanics
关键词
非线性
随机
递归
小波变换
non-linear
stochastic
recursive
wavelet transform