If signal x(t) has a maximum frequency (wm1)and signal y(t) has
a maximum frequency (wm2)where wm2>wm1,...
If signal x(t) has a maximum frequency (wm1)and signal y(t) has
a maximum frequency (wm2)where wm2>wm1, determine the Nyquist
rate for each of the following signals:
Specify the aliasing frequency of a signal that has a maximum
frequency of 92kHz and a sample frequency of 130kHz. Is this an
optimal sampling frequency? If so, explain why? If not, propose an
optimal sampling frequency.
Specify the aliasing frequency of a signal that has a maximum
frequency of 92kHz and a sample frequency of 130kHz. Is this an
optimal sampling frequency? If so, explain why? If not, propose an
optimal sampling frequency.
A particle moves with position r(t) =
x(t) i + y(t)
j where x(t) =
10t2 and y(t) = -3t
+ 2, with x and y in meters and t in seconds.
(a) Find the average velocity for the time interval from 1.00 s
to 3.00 s.
(b) Find the instantaneous velocity at t = 1.00 s.
(c) Find the average acceleration from 1.00 s to 3.00 s.
(d) Find the instantaneous acceleration at t = 1.00 s.
***Please solve on MATLAB:***
Consider the signal x(t) = 2−tu(t), where u(t) is
the unit step function.
a) Plot x(t) over (−1 ≤ t ≤ 1).
b) Plot 0.5x(1 − 2t) over
(−1 ≤ t ≤ 1).
A signal with a maximum frequency of 3 kHz is sampled at 50
kHz. What would the required transition width be in Hertz
to...
(a) decimate the signal by a factor of 8? (b) decimate the signal
by a factor of 5? (c) interpolate the signal by a factor of
4?
The temperature at a point (x,y,z) is given by
T(x,y,z)=200e^(-x^2-y^2/4-z^2/9) , where T is measured in degrees
Celsius and x,y, and z in meters. just try to keep track of what
needs to be a unit vector. a) Find the rate of change of the
temperature at the point (1, 1, -1) in the direction toward the
point (-5, -4, -3). b) In which direction (unit vector) does the
temperature increase the fastest at (1, 1, -1)? c) What is...
Let M(x, y) be "x has sent y an e-mail message" and T(x, y) be "
x has telephoned y, " where the domain consists of all students in
your class. Use quantifiers to express each of these
statements.
g. There is a student in your class who sent every one else in
your class an email message.
I answer ∃x( x ≠ y ∧ ∀? M (x, y) )
But answer on text book is ∃x( x ≠ y → ∀?...
Problem 3: The carrier c(t) = 100cos(2p fct) is frequency
modulated by the signal m(t) =
5cos(20000pt) , where fc = 108 Hz. The peak frequency deviation is
20 kHz. Determine the
amplitude and frequency of all the signal components that have a
power level of at least 10% of
the power of the un-modulated carrier component.
Hint: The wide-band FM has frequency components, fc, fc+ fm, fc?
fm, fc+2 fm, fc?2 fm,
and so on. The amplitude of the...