- Input Perturbation
- Output Measurement
- Sensitivity
- Complementary Sensitivity
If you want to introduce a permanent loop opening at a signal as well, select one of the
following open-loop analysis point types:
- Open-Loop Input
- Open-Loop Output
- Loop Transfer
- Loop Break
When you define a signal as an open-loop point, analysis functions such as
getIOTransfer always enforce a loop break at that signal during linearization. All open-
loop analysis point types are equivalent within an slLinearizer or slTuner interface.
For more information on how the software treats loop openings during linearization, see
“How the Software Treats Loop Openings” on page 2-44.
When you create an slLinearizer or slTuner interface for a model, any analysis
points defined in the model are automatically added to the interface. If you defined an
analysis point using:
- A closed-loop type, the signal is added as an analysis point only.
- An open-loop type, the signal is added as both an analysis point and a permanent
opening.
To mark analysis points programmatically, use the addPoint command. For example,
consider the scdcascade model.
open_system('scdcascade')
Mark Signals of Interest for Control System Analysis and Design