摘要
在分析传统动态精度理论弊端的基础上,提出了动态测量误差溯源的新理论,并分别用快速傅立叶变换与小波变换中的多分辨分析方法对一动态系统输出总误差进行分解与溯源分析,并对两者的结果作比较,指出小波分析方法在动态误差溯源中的优越性.
To overcome limitation of tradition al dynamic accuracy theory,a new theory is developed,ie the theory of dynamic measurement errors tracing.The decomposition a nd tracing errors of a practical dynamic measuring system are performed by two different methods -fast Fourier transform and wavelet transform.The results a re compared,and the prority of the wa velet analysis in dynamic errors tracing is proved.
出处
《安徽机电学院学报》
CAS
2001年第4期22-25,共4页
Journal of Anhui Institute of Mechanical and Electrical Engineering
关键词
动态误差溯源
多分辨分析
小波变换
快速傅立叶变换
dynamic error tracing
multi -resolution analysis(MRA)
wavelet transform
Fast Fourier transform(FFT)
