We review the main design techniques of state observer design for continuous-time
dynamical systems, namely algorithms which reconstruct online the full information of a …

In this paper we provide two significant extensions to the recently developed parameter
estimation-based observer design technique for state-affine systems. First, we consider the …

Dynamic regressor extension and mixing is a new technique for parameter estimation with
guaranteed performance improvement–with respect to classical gradient or least-squares …

A finite-time observer for a class of linear time-varying systems with bounded unknown
inputs is presented in this note. The design of the observer exploits structural properties of …

This chapter initially reviews observer theory as it was developed over the past few decades.
The state observer and its order reduction including functional observer in connection to …

In this article, an observer for linear time variant systems affected by unknown inputs is
suggested. The proposed observer combines the deterministic least squares filter and the …

The technical note deals with existence conditions of a functional observer for linear time-
varying systems in the case where the order of the observer is equal to the number of …

This paper considers the design of a Luenberger observer to estimate the linear multiple
states functional for linear time-varying (LTV) systems. Based on the solutions to a type of full …

This paper considers an iterative procedure to design a minimum possible order unknown
input functional observer for linear time-invariant systems. Necessary and sufficient …

In this paper, we investigate the exponential and asymptotic stability analysis of conformable
fractional linear time-varying systems. We propose sufficient conditions for testing the …