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Due to the lack of a general mathematical theory for linear time-varying (LTV) dynamical systems, the control of LTV systems has been a difficult task. Recently, a unified linear system theory has been developed for the class of LTV systems of the form: y(n)+an(t)y(n-1)+...+a2(t)y+a1(t)y = bn+1(t)u(n)+bn(t)u(n-1)+...+b2(t)u+b1(t)u, based on a unified time-varying eigenvalue concept [6]-[10]. Using...
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