Fal!2001 16.3120-3 10 Possible G's given Ep 10 10 10 Freq(rad/sec) Figure 3: GN with one partial bound Can add many others to develop the overall bound that would completely include ga Usually EoGjw)not known, so we would have to develop it from our approximate knowledge of the system dynamics Want to demonstrate that the system is stable for any possible perturbed dynamics in the set Gp(s)= Robust StabilityFall 2001 16.31 20—3 104 102 100 10−2 10−4 10−6 GN Possible G’s given E0 GA GN 10−1 100 101 Freq (rad/sec) Figure 3: GN with one partial bound. Can add many others to develop the overall bound that would completely include GA. • Usually E0(jω) not known, so we would have to develop it from our approximate knowledge of the system dynamics. • Want to demonstrate that the system is stable for any possible perturbed dynamics in the set Gp(s) ⇒ Robust Stability |G|