Lecture Slides: state-feedback-and-observers.pdf

State feedback is a simple control system design method that can be used to place closed loop poles arbitrarily. It is not a very practical method since to be applied it requires that we are able to measure the system state. But it forms the backbone of the combined state feedback/observer design method. Note some extra videos on this topic are included in the extra stuff at the end of the video.

State feedback requires state measurements, which are typically not available in practice. The value of the state at every point in time can however be estimated using an observer. We introduce the key ideas.

By combining an observer with a state feedback controller we do get a practical and useful design method. We show how this can be done, and discuss some of the closed loop properties of this method.

Extra stuff

A while back I made some videos on state-feedback and observer design, where we go through some examples and design rules in a bit more detail. This might help refresh your memory on some of these topics.