x团n DT System Now suppose the system is LTI, and define the unit sample response hn n2→hn From Ti m-k→bn-k From lti =∑6m一刷→列=∑mh Convolution sumx[n] DT System y[n] • Now suppose the system is LTI, and define the unit sample response h[n]: From LTI: From TI: