An Unsupervised Intelligent Fault Diagnosis System Based on Feature Transfer

Table 3

Pseudocode of HES and HMS calculation.

---

Algorithm 2: Hilbert envelope spectra and marginal spectra

---

Input: IMF component of the signal

Output: HES and HMS .

(1) Transform each IMF component to get by the Hilbert transformation.

(2) Calculate each IMF component’s analytical signal , obtain envelope function and phase function

(3) Transform by Fourier transformation to get HES

(4) Calculate the Hilbert spectra

(5) Calculate HMS by

---