Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
1: For the sinusoidaly modulated DSB/LC waveform shown in Fig. below. a- Find the modulation index. b- Sketch a line spectrum. c- Calculated the ratio of average power in the sidebands to that in the carrier." d- Determine the amplitude of the additional carrier, which must be added to obtain a modulation index of 10% D(t) 100v 50v Ans: (a) 0.33 (b)0.055. -50v -100v (d) 17s v.

1: For the sinusoidaly modulated DSB/LC waveform shown in Fig. below. a- Find the modulation index. b- Sketch a line spectrum. c- Calculated the ratio of average power in the sidebands to that in the carrier." d- Determine the amplitude of the additional carrier, which must be added to obtain a modulation index of 10% D(t) 100v 50v Ans: (a) 0.33 (b)0.055. -50v -100v (d) 17s v.

Introductory Circuit Analysis (13th Edition)
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
icon
Related questions
Question

Can you help to slove these questions

1 Messenger .ll 20:17 © 73% (CH 4) Amplitude Modulation By Dr. Hikmat Al-Shamary & Dr. Tariq M. Salman Problem Sheet for Amplitude Modulation Q1: For the sinusoidaly modulated DSB/LC waveform shown in Fig. below. a- Find the modulation index. b- Sketch a line spectrum. c- Calculated the ratio of average power in the sidebands to that in the carrier. d- Determine the amplitude of the additional carrier, which must be added to obtain a modulation index of 10% D(t) 100v 50v Ans: (a) 0.33 0- (b)0.055. -50v -100v (d) 17s v. Q2: A given AM (DSB-LC) transmitter develops an unmodulated power output of 1 kW. Across 502 resistive load. When a sinusoidal test tone with a peak amplitude of 5v is applied to the input of the modulator, it is found that the spectral line for each sideband in the magnitude spectrum for the output is 40% of the carrier line. Determine the following quantities in the output signal: a-The modulation index. b-The peak amplitude of the lower sideband. c-The ratio of total side band power to carrier power. d-The total output power. 110
Transcribed Image Text:1 Messenger .ll 20:17 © 73% (CH 4) Amplitude Modulation By Dr. Hikmat Al-Shamary & Dr. Tariq M. Salman Problem Sheet for Amplitude Modulation Q1: For the sinusoidaly modulated DSB/LC waveform shown in Fig. below. a- Find the modulation index. b- Sketch a line spectrum. c- Calculated the ratio of average power in the sidebands to that in the carrier. d- Determine the amplitude of the additional carrier, which must be added to obtain a modulation index of 10% D(t) 100v 50v Ans: (a) 0.33 0- (b)0.055. -50v -100v (d) 17s v. Q2: A given AM (DSB-LC) transmitter develops an unmodulated power output of 1 kW. Across 502 resistive load. When a sinusoidal test tone with a peak amplitude of 5v is applied to the input of the modulator, it is found that the spectral line for each sideband in the magnitude spectrum for the output is 40% of the carrier line. Determine the following quantities in the output signal: a-The modulation index. b-The peak amplitude of the lower sideband. c-The ratio of total side band power to carrier power. d-The total output power. 110
H.W: Thirty signals, twenty of them have 4 kHz bandwidth, the other have bandwidth of 3 kHz are FDM/TDM multiplexed then modulated by a n RI carricr of 800 kHz using AM modulator: 1- Calculate minimum multiplexing and transmission bandwidths. 2- Calculate multiplexing and transmission bandwidths if 0.7 kHz guard band is allowed between each two signals and below the first signal.
Transcribed Image Text:H.W: Thirty signals, twenty of them have 4 kHz bandwidth, the other have bandwidth of 3 kHz are FDM/TDM multiplexed then modulated by a n RI carricr of 800 kHz using AM modulator: 1- Calculate minimum multiplexing and transmission bandwidths. 2- Calculate multiplexing and transmission bandwidths if 0.7 kHz guard band is allowed between each two signals and below the first signal.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 5 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Thermocouple
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,
SEE MORE TEXTBOOKS