Biomedical Engineering Reference
In-Depth Information
Solution
The solution to this example involves selecting a set of parameters
that
match the characteristics observed in the main sequence diagram shown in Figure 13.6. There is
a great deal of flexibility in simulating a 10
saccade. The only constraints for the 10
saccade
simulation results are that the duration is approximately 40 to 50 ms and peak velocity is in the
500 to 600
s
1
range. For realism, a latent period of 150 ms has been added to the simulation
results. A SIMULINK block diagram of Eq. (13.48) is shown in Figure 13.42.
F
p
,
t
1
, t
ac
,
and t
de
Accel
Velocity
Position
Acceleration
Velocity
1
1
1
1
INPUT
s
s
s
s
Position
Sum2
P3
P2
P1
P0
time
(a)
Clock
Agonist
Agonist
Pulse Step
-K-
KSE*K12
Antagonist
Antagonist
Pulse Step
du/dt
KSE*B34+B2*K12
1
du/dt
B2*B34
(b)
FIGURE 13.42
SIMULINK block diagrams for Example Problem 13.7. (a) Model defined by Eq. (13.49).
(b) The input.
Continued
