A modulating signal m(t) is given by: (b) m(t)=sin(100) sin (500x) (i) Sketch the spectrum of m(t). (Hint: use the trig identity for the product of sines.) (ii) Sketch the spectrum of the DSB SC signal 2m(t)cos(1000) and find the algebraic expression of the spectrum. iii) From the spectrum sketch in part (ii), suppress the LSB part to sketch the USB spectrum.
A modulating signal m(t) is given by: (b) m(t)=sin(100) sin (500x) (i) Sketch the spectrum of m(t). (Hint: use the trig identity for the product of sines.) (ii) Sketch the spectrum of the DSB SC signal 2m(t)cos(1000) and find the algebraic expression of the spectrum. iii) From the spectrum sketch in part (ii), suppress the LSB part to sketch the USB spectrum.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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A modulating signal �(�) is given by:
(b) �(�)=���(100��)���(500��)
(i) Sketch the spectrum of �(�). (Hint: use the trig identity for the product of sines.)
(ii) Sketch the spectrum of the DSB SC signal 2�(�)���(1000��) and find the algebraic expression of the spectrum.
iii) From the spectrum sketch in part (ii), suppress the LSB part to sketch the USB spectrum.
(iv) Knowing the USB spectrum in part(iii), write the expression �USB (�) for the USB signal.
(v) Repeat parts (iii) and (iv) to obtain the LSB signal ���� (�).
Transcribed Image Text:A modulating signal m(t) is given by:
(b) m(t) = sin (100xt) sin (500л)
(i) Sketch the spectrum of m(t). (Hint: use the trig identity for the product of sines.)
(ii) Sketch the spectrum of the DSB SC signal 2m(t)cos(1000) and find the algebraic
expression of the spectrum.
iii) From the spectrum sketch in part (ii), suppress the LSB part to sketch the USB spectrum.
(iv) Knowing the USB spectrum in part (iii), write the expression USB (t) for the USB signal.
(v) Repeat parts (iii) and (iv) to obtain the LSB signal LSB (t).
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