We consider linear continuous-time systems with input, output and additive disturbances when measurements are only available at discrete instants. For these systems, we solve a state estimation problem by constructing a family of continuous-discrete time-invariant interval observers. These interval observers are composed of four copies of the studied system accompanied with appropriate outputs which give upper and lower bounds for the solutions.
['Frédéric Mazenc', 'Thach Ngoc Dinh']
Continuous-discrete interval observers for systems with discrete measurements