Specifications

10 Design Case Studies
10-40
bode(Px(1,2:3),'--',clx(1,2:3),'-',{0.1 100})
The dashed lines show the open-loop response. Note that the peak gain of the
eccentricity-to-gap response and the low-frequency gain of the
input-thickness-to-gap response have been reduced by about 20 dB.
Finally, use
lsim to simulate the open- and closed-loop time responses to the
white noise inputs and . Choose
dt=0.01 as sampling period for the
simulation, andderive equivalent discrete white noise inputs for this sampling
rate.
dt = 0.01
t = 0:dt:50 % time samples
% Generate unit-covariance driving noise wx = [w-ex;w-ix].
% Equivalent discrete covariance is 1/dt
wx = sqrt(1/dt) * randn(2,length(t))
w
ex
w
ix