Chapter 4

Signals

• Analog and digital• Aperiodic and periodic signals• Analog signals

WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998

Figure 4-1

WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998

Transformation of Information to Signals

Figure 4-2

WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998

Analog and Digital Clocks

Figure 4-3

WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998

Analog and Digital Signals

Figure 4-4

WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998

Periodic Signals

Figure 4-5

WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998

Aperiodic Signals

Figure 4-6

WCB/McGraw-Hill The McGraw-Hill Companies, Inc., 1998

Sine Wave