84.1 LTI Discrete-Time Systems in the Transform domain Such transform-domain representations provide additional insight into the behavior of such systems It is easier to design and implement these systems in the transform-domain for certain applications 一· We consider now the use of the dtft and the z-transform in developing the transform domain representations of an Lti system§4.1 LTI Discrete-Time Systems in the Transform Domain • Such transform-domain representations provide additional insight into the behavior of such systems • It is easier to design and implement these systems in the transform-domain for certain applications • We consider now the use of the DTFT and the z-transform in developing the transform￾domain representations of an LTI system