Observability techniques enable the structural system identification of static structures from a
symbolic approach. The main advantage of this method is its deep mathematical foundation that
enables the definition of parametric equations for the estimates. Nevertheless, this symbolic
approach is not enough for the application of this method on actual structures. To fill this gap, this
article presents the introduction into the symbolic structural system identification by observability
techniques of a new numerical approach. This application includes the development of an
algorithm that reduces the unavoidable numerical errors produced by the lack of precision of
computers. The comparison of the observability technique with other existing methods presented
in the literature shows that the number of required measurements is significantly lower.
Furthermore, contrary to other analysed methods, no information from the undamaged structure
is required.
