Identification Method of Shaft Orbit in Rotating Machines Based on Accurate Fourier Height Functions Descriptors

Table 1

Dimension comparison of different descriptors feature matrices.

Shape descriptor	Feature dimension
IDSC	N × Nd × Nθ = 128 × 8 × 12 = 12288
HF	M × N = 20 × 128 = 2560
TCDs	() × P = 127 × 16 = 2032
AFHF1	() × P = 127 × 16 = 2032
AFHF2	M × P = 20 × 16 = 320