HW7.3 (Frequency Mismatch in Amplitude Modulation) A bandlimited continuous-time signal x has the triangular spectrum shown below:-A↑x X (w)+AωThe following diagram shows an amplitude modulation-demodulation scheme tocommunicate the signal x to a receiver. In this problem, you'll explore the effectsr(t)Yr(t)x(t)y(t)IR(t) = cos(wit)qr(t) = cos(wot)of frequency mismatch between the transmitter and receiver carriers qT and QR,respectively. In particular, assume that0<< A < W₁ = W₁ + €(a) Determine reasonably simple expressions for the signals r and Y. You mayfind the following trigonometric identity useful:1cos a cosẞ=[cos(a + B) + cos(a – ẞ)]-2(b) Provide well-labeled plots of R(w) and Y(w), the spectra of the signals r andy, respectively.(c) Explain why the information-bearing signal x is irrecoverable, even if wesend the signal y through an ideal low-pass filter.

spectrum of bandlimited signal x(t)with modulation-demodulation scheme,where,

HW7.3 (Frequency Mismatch in Amplitude Modulation) A bandlimited continuous- time signal x has the triangular spectrum shown below: X(w) -A +A 3 The following diagram shows an amplitude modulation-demodulation scheme to communicate the signal x to a receiver. In this problem, you'll explore the effects r(t) r(t) x(t) ✗ y(t) qR(t) = cos(wit) qr(t) = cos(wot) of frequency mismatch between the transmitter and receiver carriers qr and QR, respectively. In particular, assume that 0<< A < 0 = W₁ + € (a) Determine reasonably simple expressions for the signals r and y. You may find the following trigonometric identity useful: cos a cos = [cos(a + B) + cos(a - ẞ)] (b) Provide well-labeled plots of R(w) and Y(w), the spectra of the signals r and y, respectively. (c) Explain why the information-bearing signal x is irrecoverable, even if we send the signal y through an ideal low-pass filter.

HW7.3 (Frequency Mismatch in Amplitude Modulation) A bandlimited continuous- time signal x has the triangular spectrum shown below: X(w) -A +A 3 The following diagram shows an amplitude modulation-demodulation scheme to communicate the signal x to a receiver. In this problem, you'll explore the effects r(t) r(t) x(t) ✗ y(t) qR(t) = cos(wit) qr(t) = cos(wot) of frequency mismatch between the transmitter and receiver carriers qr and QR, respectively. In particular, assume that 0<< A < 0 = W₁ + € (a) Determine reasonably simple expressions for the signals r and y. You may find the following trigonometric identity useful: cos a cos = [cos(a + B) + cos(a - ẞ)] (b) Provide well-labeled plots of R(w) and Y(w), the spectra of the signals r and y, respectively. (c) Explain why the information-bearing signal x is irrecoverable, even if we send the signal y through an ideal low-pass filter.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Deter mine the modulation and instantenous frequency of signal $ (t) = A Cos ClotT tīt') at t=0 %3D
Question 13 In case of the phase modulation of an information signal the modulated signal has a single frequency which is the carrier frequency. the modulated signal has three components with the frequencies fc, fc+fm and fc-fm. the modulated signal has a single frequency which is fm. none of the other answers is correct
replace s by jw and get the magnitude of this trasfer function
Give the transfer function of this circuit. AM-FM-SW Active Antenna http://www.uoguelph.calantoon Antenna 18" C1 470pF Antenna R1 1M C1 +9V L1 see text R1 D S 00000 C2 L1 + C2 470pF Q1 MPF102 Gnd. Tout to receiver antenna input J1
The condition for efficient Amplitude modulation is
A nonperiodic composite signal has a bandwidth of 170 kHz, with a middle frequency of 120 kHz and a peak amplitude of 20 V. The two extreme frequencies have an amplitude of 10 V. 1. The lowest frequency is KHz. 2. The highest frequency is KHz. Draw the frequency domain of the signal. (You don't need to submit the curve to the Canvas.)
Specify the Nyquist rate and Nyquist intervals for the following signals: i) 81(t) = sinc (200t) ii) 82 (t) = sinc² (200 t)
We will use magnitude comparator and a Quad 2-to-1 MUX. How ?
it in B- Consider the analog signal x(t) What is the Nyquist rate for this signal? 3cos50 mt + 10sin100 nt + cos150 nt Choose one C
It generates an output waveform with a phase variation proportional to the modulating signal. Select your answer. Direct FM transmitters Indirect FM transmitters Direct PM transmitters Indirect PM transmitters
Question 7 In case of the amplitude modulation of an information signal the modulated signal has a single frequency which is the carrier frequency. the modulated signal has three components with the frequencies fc, fc+fm and fc-fm. the modulated signal has a single frequency which is fm. none of the other answers is correct
IX) Represent (-76)10 in a) Sign Magnitude form andb) Sign 1’s Complement form