Further Improvements in High Gain Observer Design for Systems with Structured Nonlinearities

High gain observer design for nonlinear systems with time varying delayed measurements

This paper deals with the design of nonlinear observers in the presence of delayed output measurement. This problem is particulary challenging since time delays affecting output measurements arise in a variety of applications. For example, we can cite the systems which are controlled by a remote controller through a communication system as networked control systems, or when the measurements are...

Observer Design for Non-uniform Sampled Systems Using Gain-scheduling

In non-uniform sampled systems, the measurements are arriving at irregular time intervals. However, the control is updated at regular time intervals. An observer is required to obtain the estimate of the states during the control update times. We evaluate two observer designs: A Kalman filter and a gain-scheduling observer. The Kalman filter has the optimal performance. However, it is computati...

Variable high-gain disturbance observer design with online adaption of observer gains embedded in numerical integration

In this paper, a variable gain design approach for the high-gain disturbance observer, called Proportional-Integral-Observer (PI-Observer), is proposed to solve the problem of choosing suitable observer gains. The high-gain PI-Observer is successfully applied to estimate unknown inputs of systems together with the system states. It is known that reasonable estimations of unknown inputs can only...

A high gain observer with updated gain for a class of MIMO non-triangular systems

High gain observer for a class of non-triangular systems