Robust Estimation of the Unbalance of Rotor Systems Based on Sparsity Control of the Residual Model

Table 2

The results of estimated unbalance masses.

	Balancing plane P1			Balancing plane P2
	Mass (g)	Phase (°)	Relative error (%)	Mass (g)	Phase (°)	Relative error (%)
Actual	0.2	0		0.2	0
LS	0.13	40.73	66.40	0.26	11.76	36.06
M-Huber	0.17	29.16	48.78	0.23	342.89	34.63
GM	0.17	29.34	49.00	0.23	341.50	37.51
The proposed method	0.17	25.24	42.8	0.22	344.26	31.55