  In this paper, we study the identification problem of a passive system from
tangential interpolation data. We present a simple construction approach based
on the Mayo-Antoulas generalized realization theory that automatically yields a
port-Hamiltonian realization for every strictly passive system with simple
spectral zeros. Furthermore, we discuss the construction of a frequency-limited
port-Hamiltonian realization. We illustrate the proposed method by means of
several examples.
