热图像增强使用二维经验模式分解结合相关向量机的旋转机械故障诊断 -Thermal image enhancement using bi-dimensional empirical mode decomposition in combination with relevance vector machine for rotating machinery fault diagnosis

bi-dimensional empirical mode decomposition (BEMD) and dual-channel PCNN is proposed in this paper.

The HHT represents a time-dependent series in a two-dimensional (2-D) time-frequency domain by extracting instan eous frequency components within the signal through an Empirical Mode Decomposition (EMD) process. The analytical background of t