Control Systems with State Feedback

If a system is characterized by its state equation, it is straightforward to design a controller based on this system representation. The control signal is created by feeding back the state variables of the system through constant gains. These state feedback vector can be calculated to ensure the prescribed location of the poles of the control system. If the state variables are not measurable, they have to be estimated and then state feedback is realized from the estimated state variables. Properties of control systems with state feedback are discussed.