a)Name the digital modulation schemes used to generate the waveforms drawn in (ii) and (iv) , and then draw the modulating data signals in (i) and (iii) corresponding to the waveforms in (ii) and (iv) respectively: Modulating data signal time (iI) time- (i) Modulating 'data signal ! time - www (Iv). time > b) Explain what is meant by Coherent and Non- coherent demodulation

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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a)Name the digital modulation schemes used to
generate the waveforms drawn in (ii) and (iv) ,
and then draw the modulating data signals in (i)
and (iii) corresponding to the waveforms in (ii) and
(iv) respectively:
() Modulating
data signal
time >
wwvimi
(ii)
| time >
Modulating
data signal
I time -
(iv)
time >
b) Explain what is meant by Coherent and Non-
coherent demodulation
Transcribed Image Text:a)Name the digital modulation schemes used to generate the waveforms drawn in (ii) and (iv) , and then draw the modulating data signals in (i) and (iii) corresponding to the waveforms in (ii) and (iv) respectively: () Modulating data signal time > wwvimi (ii) | time > Modulating data signal I time - (iv) time > b) Explain what is meant by Coherent and Non- coherent demodulation
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