© The Institution of Electrical Engineers
A computational improvement on an algorithm previously derived for the calculation of the natural log of a square matrix is presented, allowing a more general use of the algorithm. This algorithm is useful in estimating the state-space model of a continuous-time multivariable system from data obtained with a discrete-time model.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el_19900564
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