System identification based on re-sampling of periodic signals implemented in FPGA

In this article a new methodology to obtain the set of input/output data of an open-loop system is proposed, the same ones used in a process of parametric identification through recursive methods inside and outside a line and its implementation in a FPGA ESPARTAN 3E. This method is applicable in systems where stabilization times are relatively long and are operating at high frequency, which restraints injecting an excitation signal inside the normal functioning of the system.