Signals and Systems - Electrical Engineering

(avery) #1
0.4 Complex or Real? 27

10

20

30

30

210

60

240

90

270

120

300

150

330

(^1800)
Phasor 1+Phasor 2
(a)
10
20
30
30
210
60
240
90
270
(b)
120
300
150
330
180 0
0 0.02 0.04 0.06 0.08 0.1
(c)
0.12 0.14 0.16 0.18 0.2
− 40
− 20
0
20
40
FIGURE0.13
(a) Sum of phasorsI 1 = 10 ej^0 (solid arrow) andI 2 = 20 ejπ/^4 (dashed arrow) with the result in blue; (c) sinusoid
generated by phasorI=I 1 +I 2 (b).

Free download pdf