MIT's interferometer CST testbed

A cost functional is proposed and investigated which is motivated by minimizing the energy in a structure using only collocated feedback. Defined for an _m-norm bounded system, this co,t functional aim overbounds the _: cost. Some properties of this cost functional Lre given, and pre.L/_nLry results on the procedure for minimizing it Lre presented. The frequency dorr_in cost functional is show_ to have a time domain representation in terms of a Stackelberg non-_ro sum d_e:ential game.