Chapter l Signals and Systems 5 11 Continuous-Time and Discrete-Time Signals 连续时间信号和离散时间信号 9 1.1.1 Examples and Mathematical Representation 1. Continuous-Time signals The independent variable is continuous f() f() 0 013 § 1.1 Continuous-Time and Discrete-Time Signals 连续时间信号和离散时间信号 § 1.1.1 Examples and Mathematical Representation 1. Continuous-Time Signals —— The independent variable is continuous 0 t f (t) 0 t f (t) Chapter 1 Signals and Systems