On output deadbeat control of discrete-time multivariable systems

A necessary extension to the output deadbeat control algorithm of M.R. Marrani et al. (see ibid., vol.AC-34; p.644-8 (1989)) is presented. This extension is shown to provide particular theoretical insights when dealing with the case of a system with multiple stable transmission zeros. It is numerically straightforward to implement. Once the zeros have been calculated, the state zero directions can be determined independently. This method has particular advantages when dealing with the case of a plant with multiple stable transmission zeros.<
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