Finite-Dimensional LTi Discrete-Time Systems We consider lti discrete-time systems characterized by linear constant-coefficient difference equations of the form k{n-k]=∑pkx[n-k] k=0 k=0 Copyright C 2001, S K MitraCopyright © 2001, S. K. Mitra 2 Finite-Dimensional LTI Discrete-Time Systems • We consider LTI discrete-time systems characterized by linear constant-coefficient difference equations of the form:   = = − = − M k k N k k d y n k p x n k 0 0 [ ] [ ]