Research Article

Multi-Innovation Stochastic Gradient Parameter and State Estimation Algorithm for Dual-Rate State-Space Systems with -Step Time Delay

Table 4

The parameter estimates and errors with .

Algorithms

SG (MISG, )100−0.00912−0.150360.04307−0.066300.02505−0.010040.49833−0.3867447.52683
200−0.00071−0.158970.03430−0.062260.03583−0.018740.51905−0.4167144.53744
500−0.01158−0.162180.04174−0.074580.04926−0.025780.55028−0.4595839.90966
1000−0.01300−0.167420.04407−0.077790.05693−0.029350.57120−0.4880936.94100
2000−0.01608−0.172430.04797−0.081600.06551−0.032940.58943−0.5120434.32511
3000−0.01644−0.176160.04817−0.083120.07199−0.036210.59949−0.5255732.86166

MISG, 1000.00359−0.106780.07097−0.116810.07671−0.046560.66219−0.5408929.99962
2000.01599−0.121090.06185−0.111770.09003−0.055900.68106−0.5775926.68912
5000.00850−0.133090.07485−0.125150.10632−0.062200.70645−0.6235022.16532
10000.01018−0.142600.07880−0.126290.11409−0.063840.72115−0.6518219.62474
20000.00966−0.151290.08537−0.129160.12141−0.065840.73406−0.6741017.47593
30000.01029−0.156880.08764−0.130420.12688−0.067870.74038−0.6856716.37969

MISG, 100−0.01604−0.160630.16648−0.049420.12274−0.110180.77804−0.728339.28037
200−0.00941−0.172610.16361−0.051830.13136−0.112730.78161−0.756816.94835
500−0.01370−0.188670.17725−0.068840.14888−0.119530.79311−0.774463.86359
1000−0.00956−0.195520.17681−0.067200.15297−0.116850.79300−0.784993.00103
2000−0.00865−0.201730.18160−0.070540.15557−0.116470.79656−0.790772.10426
3000−0.00843−0.205390.18430−0.073110.15762−0.116750.79793−0.792821.61476

True values−0.01000−0.220000.19000−0.080000.16000−0.120000.80000−0.80000