Mass Laplacian Discriminant Analysis and Its Application in Gear Fault Diagnosis

Table 3

Recognition rate under different distance coefficient .

Different coefficient	0.77	0.79	0.81	0.83	0.85	0.87	0.89	0.91	0.93	0.95
Original signal recognition rate (%)	67.29	66.46	70.21	64.58	66.67	66.67	67.29	74.17	65.83	67.71
Signal recognition rate after noise reduction (%)	86.67	86.94	87.22	87.78	78.89	87.5	85	87.5	87.78	91.11
Distance coefficient	0.97	0.99	1.01	1.03	1.05	1.07	1.09	1.11	1.13	1.15
Original signal recognition rate (%)	65.42	65.21	69.37	76.04	64.17	65.63	65.63	66.46	56.46	63.96
Signal recognition rate after noise reduction (%)	91.94	87.78	88.06	87.22	87.78	88.06	87.5	54.44	58.06	68.06