Frequency responsedescribes the steady-state response of a system to sinusoidal inputs.Simulink Control Design™lets you estimate the frequency response of a system modeled in Simulink (offline estimation). You can perform offline estimation usingModel Linearizeror at the command line.

Online estimation lets you deploy an embedded estimation algorithm as a standalone application for real-time estimation of a physical plant.

The result of frequency response estimation is a frequency response model, stored as anfrd模型对象。您可以使用这个模型for tasks such as linear analysis, controller design, or identification of a parametric model. For more information about the types of frequency response estimation and available tools, seeFrequency Response Estimation Basics.