O'Reilly logo

System Identification: Theory for the User, Second Edition by Lennart Ljung - Linköping University Sweden

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

5. Models for Time-varying and Nonlinear Systems

While linear, time-invariant models no doubt form the most common way of describing a dynamical system, it is also quite often useful or necessary to employ other descriptions. In this chapter we shall first, in Section 5.1, discuss linear, time-varying models. In Section 5.2 we deal with models with nonlinearities in form of static, non-linear elements at the input and/or the output. We also describe how to handle nonlinearities that can be introduced by suitable nonlinear transformations of the raw measured data. In Section 5.3 we describe nonlinear models in state-space form. So far the development concerns model structures, where the nonlinearities are brought in based on some physical insight. ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required