Acoustic Emission-Based Small Leak Detection of Propulsion System Pipeline of Sounding Rocket

Table 2

Training time and overall accuracy for 3 kernel functions utilizing the training sets.

SVM model		KL		KP		KG
Feature	Kernel function	Train time (s)	False alarm rate (%)	Train time (s)	False alarm rate (%)	Train time (s)	False alarm rate (%)
Envelope area		0.1078	0	0.1236	0	0.1049	0.75
{STD, RMS, energy}		0.1242	0.75	0.1251	1.12	0.1244	0.75
{STD, RMS, energy, average frequency}		0.1326	0.75	0.0918	0.75	0.1481	0.75