Robust Interpolation using Interval Structures

Ricardo S. Sánchez Peña, Mario Sznaier, Vicenç Puig

Abstract: This paper considers the problem of robust interpolation for plants subject to parametric uncertainty. With mixed time/frequency domain noiseless data and the plant structure (model order and uncertain independent valued parameters), intervals for parameters that interpolate the given set of data points are computed using interpolation theory and the LFT description of the model set.