The eigensystem realization algorithm (ERA) was first proposed by Juang and Pappa (1985) for modal parameter identification and model reduction of linear dynamical systems and was later refined and ERA with data correlations (ERA/DC) was formulated to handle the effects of noise and nonlinearities (Juang et al., 1988).
I think there is an important mistake in the ERA.m which should be taken into account.
In the 33rd line instead of:
Inspired by: SGALAB 1003 Beta 22.214.171.124( Matrix Varaible Inputs )
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