Research on Embedded Ball Screw Diagnosis System for Mechanical Fault Based on Bispectral Image

Table 2

Reconstruction probability and error under different noises.

Signal-to-noise ratio SNR (dB)	Reconstruction probability	Reconstruction error e
90	99.7%	0.0017%
70	99.0%	0.012%
50	97.6%	0.30%
30	80.4%	6.29%
10	51.2%	20.01%