Q.4 Consider the simisoidal signals: u(t) = cos(100zt -).v(t) = cos(105at +-), w(t) =cos(110xt - a) Give the time periods and frequencies of u(t),v(t) and w(t). b) How do you show that f(t) = 5 + 2u(t) + 5v(t) + 7w(t) is a periodic signal c) Find the findamental period and findamental frequency of f(t).

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...
icon
Related questions
Question
Q.4 Consider the sinuso idal signals:
u(t) = cos(100zt -).v(t) = cos(105zt +), w(t) = cos(110t-
31
a) Give the time periods and frequencies of u(t),v(t) and w(t).
b) How do you show that f(t) = 5 + 2u(t) + 5v(t) + 7w(t) is a periodic signal
c)
Find the findamental period and fiundamental frequency of f(t).
d)
Give MATLAB plots of u(t),v(t), w(t) and f(t).
We know that a periodic signal f(t) can be expanded into the Fourier series
in the following three forms:
e)
f(t) = a, +
{az cos(kN,t) + b̟ sin (kN,t)}
k=1
= a, +2 21czl{cos(kN,t – 4z)}
k=1
Find az, ,bg , Cg and oz,and fill in the blanks in the table below (inchuding k).
k
br
Pk
Write down the Fowrier-series expansion of f(t) in the three forms given above.
g)
Write down the harmonics of f(t).
h)
u(t),v(t) and w(t) are delayed by different amounts of time (from the origin). Cakcuate
i)
j)
these delays.
Draw the magnitude and phase frequency spectrums of f (t).
Compute the average and RMS vahes of f(t).
Transcribed Image Text:Q.4 Consider the sinuso idal signals: u(t) = cos(100zt -).v(t) = cos(105zt +), w(t) = cos(110t- 31 a) Give the time periods and frequencies of u(t),v(t) and w(t). b) How do you show that f(t) = 5 + 2u(t) + 5v(t) + 7w(t) is a periodic signal c) Find the findamental period and fiundamental frequency of f(t). d) Give MATLAB plots of u(t),v(t), w(t) and f(t). We know that a periodic signal f(t) can be expanded into the Fourier series in the following three forms: e) f(t) = a, + {az cos(kN,t) + b̟ sin (kN,t)} k=1 = a, +2 21czl{cos(kN,t – 4z)} k=1 Find az, ,bg , Cg and oz,and fill in the blanks in the table below (inchuding k). k br Pk Write down the Fowrier-series expansion of f(t) in the three forms given above. g) Write down the harmonics of f(t). h) u(t),v(t) and w(t) are delayed by different amounts of time (from the origin). Cakcuate i) j) these delays. Draw the magnitude and phase frequency spectrums of f (t). Compute the average and RMS vahes of f(t).
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Frequency Modulation
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,