Nonparametric MIMO FRF Matrix Estimation using a Single Periodic Broadband Excitation

摘要

This paper presents a new method to estimate the FRF matrix of a MIMO linear time-invariant system using periodic broadband excitation. The main advantage of this method lies in the fact that a full MIMO FRF matrix can be estimated using only one experiment in contrast to other approaches that require at least as many experiments as there are inputs [2], [3], [5]. This yields a reduction of the experiment duration if the excitation signals are properly designed. Experimental validation of this new method on a multivariable test setup is presented.