Parameter Identification of ARX Models Based on Modified Momentum Gradient Descent Algorithm

Table 2

The parameter estimates and the estimation errors (TI-SG).

5	0.0900	−0.2645	−0.0691	0.4479	0.3430	82.4797
10	0.0423	−0.3693	0.0104	0.4360	0.3971	73.7884
50	−0.0196	−0.4921	0.1103	0.3170	0.3050	58.9297
100	−0.0128	−0.5429	0.1327	0.2792	0.3194	55.1883
150	−0.0206	−0.5623	0.1498	0.2671	0.3000	53.2816
200	−0.0221	−0.5644	0.1580	0.2718	0.2908	52.5223
True value	0.3000	−0.7000	0.5000	0.2500	0.1700