Plot the absorption mode signal of a Lorentzian line as a
function of frequency for w=100...
Plot the absorption mode signal of a Lorentzian line as a
function of frequency for w=100 hz, and three values T2 equal to
1.0 sec, 0.3 sec, and 1.0 sec. How is the full width of the peak
related to the value of T2?
Sampling 2 periods of each signal in
(below) with 100 samples and plot the signal with respect to the
same frequency reference signal cos(ω0t):
a.xa(t)=50sin(100t+0.2)
b.xb(t)=25cos(5000t−π/4)
c.xc(t)=50sin(1000t+
π/4)−20cos(1000t−0.5)
d.xd(t)=30sin(3000(t−5×10−5))
e.xe(t)=25cos(5000t−2.25π)
f.xf(t)=−25cos(5000t+3π/4)
A plot of detector signal versus ppm Ca2+ yielded a
best fit straight line with a slope of 1.38 volts/ppm. Multiple
blank measurements resulted in a standard deviation of 0.18 volts.
Using a 2:1 signal-to-noise ratio criteria, calculate the detection
limit for Ca2+ in ppm when this method is employed.
Thanks!
A plot of detector signal versus ppm Ca2+ yielded a best fit
straight line with a slope of 0.13 volts/ppm. Multiple blank
measurements resulted in a standard deviation of 0.18 volts. Using
a 2:1 signal-to-noise ratio criteria, calculate the detection limit
for Ca2+ in ppm when this method is employed.
1. Generate a sine wave with frequency 100 Hz.
a. Sample the signal with a sampling frequency (i) 1000 Hz and
(ii) 1050 Hz.
b. For each frequency in Question 1(a), perform
DFT for ONE (1) cycle and ONE and a HALF
(1.5) cycles of the waveform. Comment on your
observation.
8.
A 100 W load is connected to a 50 W transmission line. Determine
the value of the reactance to put in series at the input to the
line and the length in wavelengths of the shortest transmision line
to match with a 50 W source.
The parallel-plate waveguide is air-filled and a = 2 cm.
Plot the frequency as a function of the longitudinal propagation
constant for TM2, numerically find and then plot the phase velocity
and the group velocity as a function of the longitudinal
propagation constant. Use a range of the longitudinal propagation
constant from 0 to 1000 [m-1]. In all graphs indicate the light
lines.
I will give thumbs up! please include detailed
plots
there is a sinusoidal message signal (f = 100 Hz).
Make amplitude modulation with carrier frequency of 10KHz. Use
three different modulation depths / indices (0.2 /0.60/0.8).
Then demodulate this mixed signal (for these three cases) by try
to get message signals. (need matlab codes and graphs)
An ac signal at a certain frequency is applied across a 40-mH
inductor and a 100-Ω resistor. If the power factor of this circuit
is 0.40, what is the value of the frequency?
A.160 Hz B.600 Hz C.910 Hz D.410 Hz C.200 Hz
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.