High-gain interval observer for continuous–discrete-time systems using an LMI design approach

In this paper, a high-gain interval observer (HGIO) for class of partially linear continuous-time systems with sampled measured outputs in the presence bounded noise and additive disturbances is proposed. The design HGIO formulated Linear Matrix Inequality (LMI) framework. gain designed to satisfy cooperative property using time-varying change coordinates based on pole placement separate LMI regions. Moreover, procedure designing minimise effect disturbance estimation provided. stability proposed also guaranteed. approach assessed simulation numerical example.