Robust stability of ladder circuits from the 2D systems point of view

Ladder circuits can be considered as two-dimensional (2D) systems where information is propagated in two separate directions, i.e. along the time axis and along a space variable represented by a node number. Further, lifting along nodes is applied to obtain an equivalent 1D dynamical system model. Finally, the Linear Matrix Inequality (LMI) approach is used to develop robust stability conditions for uncertain active ladder circuits.