Research Article

A Nonlinear Adaptive Observer-Based Differential Evolution Algorithm to Multiparameter Fault Diagnosis

Table 3

The parameter estimation results with different SNR.

ParameterFault valueSNR = 50SNR = 40SNR = 30SNR = 20SNR = 10

0.30.3005500.2987210.2904310.3078650.275272
0.30.3011630.2599000.2951850.2740000.303014
0.50.4916330.4941830.4957230.4937560.428642
0.60.6029570.6039520.5948990.5952720.616803
1.00.9961620.9914300.9983030.9981010.995124