Research Article

Fault Diagnosis of Nonlinear Analog Circuit Based on Generalized Frequency Response Function and LSSVM Classifier Fusion

Table 1

The estimation results of GFRFs.

GFRFsActual value [38]Estimated value
SNR = 35 dBSNR = 30 dBSNR = 25 dB

0.455–0.143i0.462–0.150i0.459–0.152i0.459–0.153i
−0.019 + 0.044i−0.019 + 0.048i−0.020 + 0.048i−0.023 + 0.050i
−0.057−0.059−0.060−0.060