Dissipative control for linear discrete-time systems (Q1307126)

The paper considers the ``equation + index'' system \[ x_{k+1}= Ax_k+B_1u_k \] \[ z_k=C_1x_k+ D_{11}u_k \] \[ E(u,z,N)= \sum^N_0(z^*_k Qz_k+2x_k Su_k+ u^*_kRu_k). \] A review of dissipativity theory is given for such systems. Then one considers the two-input/two-output system \[ x_{k+1}= Ax_k+B_1 \omega_k+B_2u_k \] \[ z_k=C_1x_k+ D_{11}\omega_k +D_{12}u_k \] \[ y_k=C_2 x_k+D_{21} \omega_k. \] A Linear Matrix Inequalities (LMI) approach is used to obtain the feedback control \(u_k=Kx_k\) so that the resulting system should be dissipative and exponentially stable. An example is given.