Modal-Decomposition-Dependent State-Space Modeling and Modal Analysis of a Rigid-Flexible, Coupled, Multifreedom Motion System: Theory and Experiment

Table 2

The special choices of and used to obtain the different subspace algorithms.

N4SID

MOESP

CVA

denotes the covariance between the matrices A and B. denotes operator that projects the row space of a matrix onto the row space of the matrix .