= 5.4-2 A periodic square wave m(t) (Fig. P5.4-2a) frequency-modulates a carrier of frequency fc 10 kHz with Af = 1 kHz. The carrier amplitude is A. The resulting FM signal is demodulated, as shown in Fig. P5.4-2b by the method discussed in Sec. 5.4 (Fig. 5.12). Sketch the waveforms at points b, c, d, and e. 1 m(t) -To - 1 (a) m(t) FM modulator d di Envelope detector Dc blocking Demodulator

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5.4-2 A periodic square wave m(t) (Fig. P5.4-2a) frequency-modulates a carrier of frequency fc
10 kHz with Af = 1 kHz. The carrier amplitude is A. The resulting FM signal is demodulated,
as shown in Fig. P5.4-2b by the method discussed in Sec. 5.4 (Fig. 5.12). Sketch the waveforms
at points b, c, d, and e.
1
m(t)
-To
- 1
(a)
m(t)
FM
modulator
d
di
Envelope
detector
Dc
blocking
Demodulator
Transcribed Image Text:= 5.4-2 A periodic square wave m(t) (Fig. P5.4-2a) frequency-modulates a carrier of frequency fc 10 kHz with Af = 1 kHz. The carrier amplitude is A. The resulting FM signal is demodulated, as shown in Fig. P5.4-2b by the method discussed in Sec. 5.4 (Fig. 5.12). Sketch the waveforms at points b, c, d, and e. 1 m(t) -To - 1 (a) m(t) FM modulator d di Envelope detector Dc blocking Demodulator
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