Mass Laplacian Discriminant Analysis and Its Application in Gear Fault Diagnosis

Table 1

Correct recognition rate of test data under different noise levels and distance coefficients (%).

	No noise	SNR = 40	SNR = 20	SNR = 0	SNR = −20	SNR = −30	SNR = −40
0.7	98.33	96.67	95.00	96.67	96.67	86.67	50.00
0.72	98.33	96.67	98.33	96.67	96.67	88.33	50.00
0.74	96.67	98.33	93.33	96.67	91.67	88.33	48.33
0.76	98.33	96.67	93.33	98.33	96.67	90.00	41.67
0.78	95.00	91.67	96.67	96.67	96.67	88.33	50.00
0.8	91.67	95.00	98.33	90.00	91.67	90.00	43.33
0.82	91.67	96.67	93.33	98.33	91.67	85.00	43.33
0.84	96.67	96.67	93.33	98.33	91.67	85.00	50.00
0.86	100.00	95.00	95.00	90.00	96.67	85.00	46.67
0.88	98.33	95.00	95.00	98.33	96.67	91.67	40.00
0.9	100.00	98.33	98.33	98.33	86.67	85.00	51.67
0.92	98.33	96.67	95.00	96.67	96.67	91.67	46.67
0.94	91.67	96.67	98.33	90.00	96.67	83.33	50.00
0.96	100.00	95.00	98.33	96.67	91.67	83.33	44.67
0.98	96.67	95.00	95.00	90.00	96.67	83.33	48.33
1.00	96.67	91.67	98.33	90.00	91.67	86.67	48.33
1.02	98.33	91.67	98.33	96.67	96.67	85.00	48.33
1.04	98.33	95.00	95.00	98.33	91.67	86.67	48.33
1.06	98.33	91.67	96.67	90.00	91.67	91.67	48.33
1.08	91.67	95.00	98.33	96.67	86.67	91.67	48.33
1.1	98.33	96.67	98.33	96.67	96.67	85.00	60.00
1.12	100.00	95.00	98.33	96.67	91.67	91.67	48.33
1.14	98.33	98.33	98.33	90.00	91.67	86.67	56.67
1.16	100.00	98.33	98.33	98.33	96.67	85.00	56.67
1.18	98.33	98.33	96.67	96.67	96.67	85.00	48.33
1.2	100.00	96.67	95.00	96.67	86.67	91.67	48.33
1.22	98.33	95.00	96.67	90.00	91.67	91.67	48.33
1.24	100.00	95.00	98.33	98.33	86.67	83.33	48.33
1.26	96.67	96.67	98.33	96.67	96.67	83.33	48.33
1.28	98.33	95.00	100.00	98.33	86.67	85.00	48.33
1.30	91.67	98.33	98.33	98.33	86.67	85.00	48.33