The opportunities of blind source separation techniques in the automation of modal identification for vibration based SHM
C. Rainieri & G. Fabbrocino · 2013
BSS techniques allow for the extraction of a set of signals, the sources, from observations of their mixtures. In the last decade an increasing number of applications to structural dynamics have appeared in the literature. In the context of modal identification, BSS techniques can be referred to as time domain methods. Moreover, since no model is fitted to data, they can be classified as non-parametric. The absence of stabilization charts to be interpreted or model parameters to be set makes BSS techniques an interesting alternative to classical time domain modal identification methods. Thus, a performance assessment of BSS techniques for OMA of civil structures is of interest.