qqqqq

代码说明：

  为了直接对内燃机振动谱图像进行诊断识别，提出一种基于改进变分模态分解（ＶＭＤ）、伪魏格纳时频分 析（ＰＷＶＤ）与局部非负矩阵分解（ＬＮＭＦ）的内燃机振动谱图像识别诊断方法(In order to direct the internal combustion engine vibration spectral image for diagnosis recognition is proposed based on the improved variational mode decomposition (VMD), pseudo-Wigner time-frequency analysis (PWVD) image recognition and the local non-negative matrix factorization (LNMF) engine vibration spectra diagnosis method)

文件列表：

qqqqq.m,4342,2016-12-05