Dynamics of Naval Craft - System Identification 
observed 
aS ) = = estimated 
4 
2 1 
/ 
7 
Yr Ft. 0 
-2 
-4 
0 10 20 30 40 
tt, Sec. 
observed 
4 — — — —estimated 
2 
“NN 
y, ft./sec. 
-2 
-4 ee eee eee Danae, DE SeeE a 
0 no) 20 30 40 
t, sec. 
Figure 1. Estimation of states for second order system, 
transient response, 
1671 
