  We present a framework for constructing a structured realization of a linear
time-invariant dynamical system solely from a discrete sampling of an input and
output trajectory of the system. We estimate the transfer function of the
original model at selected frequencies using a modification of the empirical
transfer function estimation that was recently presented in [Peherstorfer,
Gugercin, Willcox, SIAM J. Sci. Comput., 39(5):2152-2178, 2017]. Our
realization interpolates the transfer function estimates and can be seen as a
generalization of the Loewner framework to structured systems. We demonstrate
the presented framework by means of a delay example.
