Q.2 Consider the decaying exponential signal f(t) = Ae¯"u(t);a>0 -at 1 where r=- is caled the time constant of f(t). a a) Show that at time t= Nr x(Nr) =: e x(0) , ie., x(Nr)_ 1 x(1 + Nr) - and x(0) x(t) b) Now consider the sinusoidal signal with decaying exponential envelope: x(1) = {Ae" cos(2,f +9)}u(t) ; a>0. Give the relationship between the time period To of the sinusoidal signal and the time constant t of the exponential signal if x(T,) _ 1 x(107,) x(0) =0.01 . %3D x(0)

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
icon
Concept explainers
Question
Q.2 Consider the decaying exponential signal
f (t) = Ae¯“u(t);a>0
where 7=- is called the time constant of f(t).
a
a) Show that at time t= NT x(Nt)=-
x(0)
x(Nr)
1
and
eN
, ie.,
x(t + N7)
1
%3D
%3D
e
x(0)
x(t)
eN
b) Now consider the sinusoidal signal with decaying exponential envelope:
x(1) = {Ae¯" cos(t +p)}u(t) ; a>0.
-at
Give the relationship between the time period To of the sinusoidal signal and the time constant
t of the exponential signal if
1 x(107,)
x(T,)
x(0)
- = 0.01 .
x(0)
%3D
e"
Transcribed Image Text:Q.2 Consider the decaying exponential signal f (t) = Ae¯“u(t);a>0 where 7=- is called the time constant of f(t). a a) Show that at time t= NT x(Nt)=- x(0) x(Nr) 1 and eN , ie., x(t + N7) 1 %3D %3D e x(0) x(t) eN b) Now consider the sinusoidal signal with decaying exponential envelope: x(1) = {Ae¯" cos(t +p)}u(t) ; a>0. -at Give the relationship between the time period To of the sinusoidal signal and the time constant t of the exponential signal if 1 x(107,) x(T,) x(0) - = 0.01 . x(0) %3D e"
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Ellipses
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, advanced-math and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,