System IdentificationOverviewA numerical algorithm for reconstructing continuoustime linear models with pure integrators from their discretetime equivalents is derived. The algorithm treats the reconstruction problem in the frequencydomain and establishes a numerically tractable zdomain to sdomain mapping, which avoids the need for software packages with symbolic mathematical solving capabilities. The proposed algorithm can be conveniently implemented using standard building block numerical routines and has been recently employed in a computeraided control systems design software package. Unlike other approaches, this algorithm is shown to avoid unnecessary computations, which typically result in numerical burden, ambiguity, and singularity. A numerical example is given demonstrating the application of the proposed algorithm. Related Publications
