Consider a very simple model for the amplitude of an acoustic signal as it propagates away from a source. The real amplitude A at distance d (in meters) is defined as A(d) = Aolejkd| where A0 = 2.5 and k = -j0.25. Which of the plots below shows A(d)? ☐ LO 5 4 3 U 5 1 4 3 2 2 1 0 T 0 0.5 1 1.5 2 2.5 3 d M wwwww 0.5 1 1.5 2 2.5 3 d U ☐ 5 4 3 2 1 0 0 0.5 1 1.5 50 2 2.5 3 5 4 3 2 1 0 0 0.5 1 1.5 2 2.5 3

Consider a very simple model for the amplitude of an acoustic signal as it propagates away from a source. The real amplitude A at distance d (in meters) is defined as A(d) = Aolejkd| where A0 = 2.5 and k = -j0.25. Which of the plots below shows A(d)? ☐ LO 5 4 3 U 5 1 4 3 2 2 1 0 T 0 0.5 1 1.5 2 2.5 3 d M wwwww 0.5 1 1.5 2 2.5 3 d U ☐ 5 4 3 2 1 0 0 0.5 1 1.5 50 2 2.5 3 5 4 3 2 1 0 0 0.5 1 1.5 2 2.5 3

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

Answer all question.
answer all questions please
XY=54
i need the answer quickly
A sequence of alternating 1s and 0s is transmitted as a square wave. What is the fundamentalfrequency and how many harmonics can be used if the available BW is 100 MHz and a data rate of 56Mbps is desired? Express the signal as a mathematical function of time (s(t)) and sketch the resultingsignal in both the time and frequency domains. Is this a “good enough” representation of the squarewave? Why or why not?
Q7. A sinusoid wave of frequency vm = 10 kHz is used to frequency modulate a carrier wave of frequency vc = 96 MHz with a a peak frequency deviation Ay = 24 kHz. (a) Does this modulation correspond to narrowband or wideband FM? (b) Using the plots of Bessel functions in figure Q7 and the recursive relation for Bessel functions of the first kind, 2n Jn-1(B) + Jp+1 (B) = (6) or otherwise, determine the relative amplitude of the the carrier and the significant sidebands. (c) Sketch the power spectrum of this FM waveform. (d) State Carson's rule for determining the number of significant sidebands. (e) What is the maximum bandwidth given by Carson's rule for this modulated waveform? (f) Compare the bandwidth of your calculated power spectrum in part (c) with the maxi- mum bandwidth given by Carson's rule. (g) What is the equivalent AM modulation index obtained if this signal is demodulated with a high-pass RC filter discriminator? 1.0 Jo(x) 0.8 J1 (x) - 0.6 0.4 - 0.2 0.0 5/ 7 8 () -0.2 1 3…
EEE
Q7. A sinusoid wave of frequency vm = 10 kHz is used to frequency modulate a carrier wave of frequency ve = 96 MHz with a a peak frequency deviation Av = 24 kHz. (a) Does this modulation correspond to narrowband or wideband FM? (b) Using the plots of Bessel functions in figure Q7 and the recursive relation for Bessel functions of the first kind, 2n Jn-1(B) + Jn+1(ß) Jn(B) or otherwise, determine the relative amplitude of the the carrier and the significant sidebands. (c) Sketch the power spectrum of this FM waveform. (d) State Carson's rule for determining the number of significant sidebands. (e) What is the maximum bandwidth given by Carson's rule for this modulated waveform? (f) Compare the bandwidth of your calculated power spectrum in part (c) with the maxi- mum bandwidth given by Carson's rule. (g) What is the equivalent AM modulation index obtained if this signal is demodulated with a high-pass RC filter discriminator? 1.0 Jo(x) 0.8 - J1(x) 0.6 0.4 0.2 0.0 6. 7. 10 () -0.2 1 -0.4…
(3. Sketch the AM modulated signal (assume sinusoidal signal modulating a sinusoidal carrier) in both time and frequency domain. Remember, graphs with missing labels and values will be graded with zero.
communucation systems help pls can you do i and ii ( if its possible iii also would be very grateful)
An AM signal has a carrier frequency of 400 MHz and amplitude of 5 Vp. It is modulated by a sinusoidal wave with frequency of 2 kHz and peak amplitude of 2 Vp. What are the lower and upper sideband frequencies? Select your answer. 399.98 MHz to 400.02 MHz 399.998 MHz to 400.02 MHz 399.98 MHz to 400.002 MHz 399.998 MHz to 400.002 MHz
Solve showing all the steps in detail