Simulink Control Design™ - MathWorks

Analysis Point Description

Input

perturbation

Specifies an additive input to a signal.

To define a transfer function for a linearized system, you can use an

input perturbation with an output measurement or open-loop output.

For example, to compute the response G/(1+GK) in the example

system, specify an input perturbation du and an output measurement y

as shown.

K G

r e

+

du

y

Output

measurement

Takes a measurement at a signal.

To define a transfer function for a linearized system, you can use an

output measurement with an input perturbation or an open-loop input.

For example, to compute the response -K/(1+KG) in the example

system, specify an output measurement point u and an input

perturbation dy as shown.

K G

r e

u

+

dy

2 Linearization