A periodic square wave m(t) (Fig. P5.4-2a) frequency-modulates a carrier of frequency fe 10 kHz with...
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A periodic square wave m(t) (Fig. P5.4-2a) frequency-modulates a carrier of frequency fe 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. S.12). Sketch the waveforms at points b, c, d, and e. Figure P.5.4-2 m(t) - (a) m(t) FM Envelope detector De blocking modulator Demodulator (b) Figure 5.12 (a) FM demodulator frequency response. (b)'Output of a differentiator to the input FM wave. (c) FM demodulation by direct differentiation. FM band (a) A [w, + k,m(1)] (b) A [w, + kymit)] d Envelope di detector (c) * Provided the variations of w; are. slow in comparison to the time constant of the network. A periodic square wave m(t) (Fig. P5.4-2a) frequency-modulates a carrier of frequency fe 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. S.12). Sketch the waveforms at points b, c, d, and e. Figure P.5.4-2 m(t) - (a) m(t) FM Envelope detector De blocking modulator Demodulator (b) Figure 5.12 (a) FM demodulator frequency response. (b)'Output of a differentiator to the input FM wave. (c) FM demodulation by direct differentiation. FM band (a) A [w, + k,m(1)] (b) A [w, + kymit)] d Envelope di detector (c) * Provided the variations of w; are. slow in comparison to the time constant of the network.
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Related Book For
Probability and Random Processes With Applications to Signal Processing and Communications
ISBN: 978-0123869814
2nd edition
Authors: Scott Miller, Donald Childers
Posted Date:
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