Simulink Control Design™ - MathWorks

Verifying Frequency-Domain Characteristics of an

Aircraft

This example shows how to use the blocks in Linear Analysis Plots and Model Verification

libraries of Simulink Control Design. The Simulink Control Design software provides

blocks that you can add to Simulink models to check that the model's linear response

satisfies frequency-domain characteristics during simulation. In this example, the gain

and phase margins of an aircraft velocity control loop are checked as the fuel load

changes.

Aircraft Model

Open the Simulink model of an aircraft:

open_system('scdaircraft')

The aircraft model is based on a long-haul passenger aircraft flying at cruising altitude

and speed. The aircraft starts with a full fuel load and follows a pre-specified eight hour

Verifying Frequency-Domain Characteristics of an Aircraft