Zw. Gao et Dwc. Ho, Comments on 'parameterization of stabilizing compensators by using reduced-order observers", IEEE AUTO C, 46(11), 2001, pp. 1840-1842
In this note, a counterexample of the above mentioned paper(1) is given. It
is shown that the parameterization of all proper compensators internally s
tabilizing the plant is incomplete. Modified parameterization of all proper
stabilizing compensators is also presented.