Question
In: Electrical Engineering
A signal with a maximum frequency of 3 kHz is sampled at 50 kHz. What would...
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?
Solutions
Manojponduru answered 1 year agoRelated Solutions
Specify the aliasing frequency of a signal that has a maximum frequency of 75 kHz and...
Specify the aliasing frequency of a signal that has a maximum
frequency of 75 kHz and a sample frequency of 100 kHz. Use the
folding diagram.
A carrier signal with unit amplitude and frequency fc1 = 50 kHz is modulated with a...
A carrier signal with unit amplitude and frequency fc1 = 50 kHz
is modulated with a message signal
?1(?)=2cos(2??1?), where f1 = 15 kHz, to produce a DSB-SC signal.
This DSB signal must be up-converted to a center frequency fc = 100
kHz.
a. Determine the image frequency of the DSB signal. [2]
b. An Upper-SSB signal with unit amplitude carrier at the image
frequency calculated above also exists in the spectrum. The SSB
signal is tone modulated with ?2(?)=4cos(2??2?),...
Specify the aliasing frequency of a signal that has a maximum frequency of 92kHz and a...
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...
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.
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:
(a)x(t)+ x(t-1)
(b) dx/dt
c) x(t)y(t)
(d)x(t)*y(t)
Consider a message signal m(t) with bandwidth W = 5.86 kHz. This signal is applied to...
Consider a message signal m(t) with bandwidth W = 5.86 kHz. This
signal is applied to a product modulator, together with a carrier
wave c t = cos(210000πt) producing the DSB-SC modulated
wave s(t). This modulated wave is next applied to a coherent
detector producing an output signal y(t). The coherent detector
consists of a product modulator that multiplies s(t) by c
r = 2cos(222000πt) and a low pass filter which has a cut
off frequency 21 kHz. The output...
Faraday's Law: What would you observe about the amplitude of an induced signal as the frequency...
Faraday's Law: What would you observe about the amplitude of an
induced signal as the frequency varied? Describe whether the
behavior is consistenent with Eq. 3 (Vo= w(Nd)A(Bo)cos(theta)). In
particular what should your graph of amplitudes against frequencies
look like according to Eq 3? In comparisons with the predictions of
Eq 3, why would it be important to adjust the function generator to
keep the amplitude of the B field the same at each frequency?
Assume that you have a clock signal with frequency of 50 Hz, and you want to...
Assume that you have a clock signal with frequency of 50 Hz, and
you want to divide this signal into a frequency of 1 Hz signal. The
counter chips you must use are synchronous decade (MOD 10) counter
chips 74160 and synchronous MOD 16 counter chips 74161. Please use
the back side of this paper to draw your circuit diagram with all
the details.
You can use counter frequency division method to step down a
higher frequency signal to a...
WRKO is an AM radio station that transmits on a carrier frequency of 680 kHz. What...
WRKO is an AM radio station that transmits on a carrier
frequency of 680 kHz. What wavelength is WRKO transmitting? (Hint:
vel = freq * wavelength, these are electromagnetic waves.) An
efficient dipole antenna for transmitting or receiving radio
signals is the ¼ wavelength antenna. (antenna should be ¼ the
wavelength of the signal) What size transmitting antenna should
WRKO use?
WBCN is an FM radio station that transmits on a carrier
frequency of 104.1 MHz. What is the wavelength...
A carrier signal of (500 kHz) is amplitude modulated to a depth of 75% by a...
A carrier signal of (500 kHz) is amplitude modulated to a depth
of 75% by a single tone modulating signal of 18 KHz. The carrier
amplitude is 800 Volts , and the antenna equivalent impedance is 70
Ohms. Calculate:
1- modulating wave voltage (Am) [volt]
2- The carrier power (Pc) [Watt]
3- The average output Power (Pt) [watt]
4- The percentage transmission efficiency [%]
5- The lower side band power (PLSB)
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