Signals and Systems

1.3 CONTINUOUS TIME SIGNALS

If a signal is defined at all values of t where t is a continuous variable, this is known as a continuous time signal. Fig. 1.1 is known as continuous time signal.

 

 

Fig. 1.1 Continuous signal

 

The signal shown in Fig. 1.1 is continuous in time as well as in amplitude. Fig. 1.2 given below shows a signal which is continuous in time but discrete in amplitude.

 

 

Fig. 1.2 Continuous in time but discrete in amplitude

Example 1.1   Fig. E1.1 shows a continuous-time signal. Sketch and level of the following signals: ...