Signals and systems Fall 2003 Lecture#3 11 September 2003 1) Representation of dt signals in terms of shifted unit samples 2) Convolution sum representation of dt lti systems 3) Examples 4) The unit sample response and properties of dt lti systemsSignals and Systems Fall 2003 Lecture #3 11 September 2003 1) Representation of DT signals in terms of shifted unit samples 2) Convolution sum representation of DT LTI systems 3) Examples 4) The unit sample response and properties of DT LTI systems