The figure below is a block diagram of a simple phase-shift single-sideband mod- ulator. In many communications applications single side band (SSB) modulation is preferred because the modulated signal can be transmitted with only half the bandwidth of the original double side-band (DSB) signal without losing any information. x[n] H90 (w) cos (won) [v[n] Hoo(w): -0.2π X sin(won) ↑X (w) A The LSI system labelled H90() is an ideal phase shifter. It has the response Heo (w) -j w<0 w>0 The spectrum of the input, the DTFT X(w) is as follows 0.2π r[n] + لها s[n] y[n] Given the spectrum of the input X(w) and a value of 0.5 for wo, sketch the following spectra: (a) V(w) the DTFT of v[n] (b) R(w) the DTFT of r[n] (c) S(w) the DTFT of s[n] (d) Y(w) the DTFT of y[n] Sketch the block diagram of a system that contains ideal multipliers, adders and ideal filters that can be used to recover the input function r[n] from y[n].
Power Amplifier
The power amplifier is an electronic amplifier designed to maximize the signal strength of a given input. The input signal strength is enhanced to a high enough level to drive output devices such as speakers, headphones, RF (Radio frequency) transmitters, etc. Unlike voltage / current amplifiers, the power amplifier is designed to drive core loads directly and is used as a storage block in the amplifier series.
Maximum Efficiency Criterion
In every field of engineering, there is a tremendous use of the machine and all those machines are equipped for their popular work efficiency so it very much important for operation engineers to monitor the efficiency of the machine, planning engineers to check out the efficiency of the machine before installing the machine and design engineers to design machine for higher efficiency than and then the utility will procure their products that will ultimately lead to profit and loss of the company. It indicates the importance of efficiency right from the initial stage as manufacturing units, intermediate stage as planning coordinators, and end-users stage as a utility.
Please help answer part d of this question and please clearly explain solution
![The figure below is a block diagram of a simple phase-shift single-sideband mod-
ulator. In many communications applications single side band (SSB) modulation is preferred
because the modulated signal can be transmitted with only half the bandwidth of the original
double side-band (DSB) signal without losing any information.
x[n].
H90 (w)
cos(won)
]v[n]
H90 (w):
-0.2TT
X
sin(won)
-j w<0
w>0
The LSI system labelled H90 (w) is an ideal phase shifter. It has the response H90 (w)
&
The spectrum of the input, the DTFT X(w) is as follows
↑X (w)
A
r[n]
0.2T
+
s[n]
y[n]
Given the spectrum of the input X(w) and a value of 0.5% for wo, sketch the following spectra:
(a) V(w) the DTFT of v[n]
(b) R(w) the DTFT of r[n]
(c) S(w) the DTFT of s[n]
(d) Y(w) the DTFT of y[n]
Sketch the block diagram of a system that contains ideal multipliers, adders and ideal filters
that can be used to recover the input function a[n] from y[n].](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc012e98d-11f3-4ebf-9e91-31a87ace6c91%2F1ad414a6-5aa8-4022-bedf-461e9c4fd2c4%2Fyi2zjnc_processed.png&w=3840&q=75)
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