Chapter 1 Signals and Systems 2. Discrete-Time Signals - The independent variable is discrete IG n is integer number 4 01234567 Continuous-time signals Discrete-time signals 1414 Chapter 1 Signals and Systems 2. Discrete-Time Signals —— The independent variable is discrete   xn n 0 5 1 1 2 3 4 5 6 4 1 7 10 8 11 n is integer number Continuous-time signals Discrete-time signals