4.2-1 For each of the baseband signals: (i) m(t) = cos 1000r t; (ii) m(t) = 2 cos 1000rt + sin 2000rt; (iii) m(t) = cos 1000t t cos 30007 1, do the following. (a) Sketch the spectrum of m(t). (b) Sketch the spectrum of the DSB-SC signal m(t) cos 10,000 t. (c) Identify the upper sideband (USB) and the lower sideband (LSB) spectra. (d) Identify the frequencies in the baseband, and the corresponding frequencies in the DSB-SC, USB, and LSB spectra. Explain the nature of frequency shifting in each case.
4.2-1 For each of the baseband signals: (i) m(t) = cos 1000r t; (ii) m(t) = 2 cos 1000rt + sin 2000rt; (iii) m(t) = cos 1000t t cos 30007 1, do the following. (a) Sketch the spectrum of m(t). (b) Sketch the spectrum of the DSB-SC signal m(t) cos 10,000 t. (c) Identify the upper sideband (USB) and the lower sideband (LSB) spectra. (d) Identify the frequencies in the baseband, and the corresponding frequencies in the DSB-SC, USB, and LSB spectra. Explain the nature of frequency shifting in each case.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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4.2.1
plz provide step sby step solution of part a,b,d and explain it asap
Transcribed Image Text:4.2-1 For each of the baseband signals: (i) m(t) = cos 1000r t; (ii) m(t) = 2 cos 1000rtt +
sin 2000rt; (iii) m(t) = cos 1000r t cos 3000r t, do the following.
(a) Sketch the spectrum of m(t).
(b) Sketch the spectrum of the DSB-SC signal m(t) cos 10,000rt t.
(c) Identify the upper sideband (USB) and the lower sideband (LSB) spectra.
(d) Identify the frequencies in the baseband, and the corresponding frequencies in the DSB-SC,
USB, and LSB spectra. Explain the nature of frequency shifting in each case.
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