A 3-Phase, 60 HZ transmission line has the following parameters:
L= 2.563 x 10^(-3) H/mi
R= 0.25 Ohms/mi
Y= 5 x 10^(3) S/mi
The line is 200 mi long and it delivers 150 MW at 220 kV and unity power factor to a substation at its receiving end.
Find the efficiency and voltage regulation of the transmission line.
In: Electrical Engineering
Design a synchronously settable flip-flop using a regular D flip-flop and additional gates.
In: Electrical Engineering
please let me know reference of this MATLAB code.
please explain this code line by line.
.
.
N=256; %% sampling number
n=linspace(0,1,N);
fs=1/(n(2)-n(1));
x=5*(sin((2*pi*10*n))); %% create signal
N=length(x);
f=[-fs/2:fs/N:fs/2-fs/N];
subplot(211)
plot(f,fftshift(abs(fft(x))));
title('|G(f)|');grid;
xlabel('frequency');
ylabel('|G(f)|');
%Zero padding
xx=[zeros(1,128) x zeros(1,128)];
N=length(xx);
f=[-fs/2:fs/N:fs/2-fs/N];
subplot(212)
plot(f,fftshift(abs(fft(xx))));
title('|Gz(f)|');grid;
xlabel('frequency');
ylabel('|Gz(f)|');
In: Electrical Engineering
Please, introduce the knowledge of “swarms in autonomous systems; properties, and advantages.
In: Electrical Engineering
Please give following terms definitions with the examples with circuit diagrams
PHASE LOCK LOOP
BUCK BOOST
LDO
TX RX SENSITIVITY
TXCVR
TYPES OF FILTERS
BER VS POWER RELATIONS
CHANNEL POWER
POWER DENSITY
I Q DIGITAL ANALOG MODULATIONS
ENVELOPE
TXCO
TARGET AND BINARY SEARCH
SHDN
LNA
VSWR
RSSI
POWER BAND
SENSITIVITY
In: Electrical Engineering
Given: a 315MHz binary message is being ASK modulated with a carrier frequency of 38KHz.
Write a MatLab program to demodulate the signal, and graph the output.
In: Electrical Engineering
For a right-sided system specified by the transfer
function
H(z) = z/(z - 0.5)and an input x[n] = (0.8)n u[n]
find the poles of the response Y[z] and the ROC.
(Hint: Find X(z). H(z) = Y(z)/X(z). Find individual poles’ ROC and
then find the common region of convergence)
In: Electrical Engineering
Consider two different implementations of the same instruction set architecture.
The instructions can be divided into four classes according to their CPI (classes A, B, C, and D).
P1 with a clock rate of 2.5 GHz and CPIs of 1, 2, 3, and 3, and P2 with a clock rate of 3 GHz and CPIs of 2, 2, 2, and 2.
Given a program with a dynamic instruction count of 1.0E6 instructions divided into classes as follows:
10% class A, 20% class B, 50% class C, and 20% class D,
which is faster: P1 or P2?
a. What is the global CPI for each implementation?
b. Find the clock cycles required in both cases.
In: Electrical Engineering
1. Explain briefly the purpose of a power supply of a Bio-medical electronic instrument? What is meant by a stabilized power supply?
2. Briefly describe the salient features of a switching type regulator used in the power supply of medical diagnostic equipment.
3. What are the functions of an input filter in a switching power supply?
In: Electrical Engineering
Draw the diagram for an array multiplier circuit for 5x5 multiplications.
In: Electrical Engineering
Could you please solve these problems and explain the steps?
Consider a 3-input function G whose POS form is known to contain
the maxterm X + Y + Z.
1) What is the maximum number of minterms that the SOP form of G
can have such that no simplification is possible? Derive the
corresponding Boolean expression for both SOP form and POS form.
Can G0 be simplified?
2) Let us assume that all minterms that do not exist in the SOP
form of G are “don’t care”s. Can the POS form of F be simplified? If
so, what is the simplified Boolean expression for F?
In: Electrical Engineering
During a power outage, a homeowner starts a generator that outputs 4,000 W of electrical power. It burns gasoline at a rate of 15 gallons per day.
Gasoline has an energy content of 19,800 BTU/lb, a density of 6.07 lb/gal and a carbon content of 86% by mass.
1. What is the generators efficiency at converting gasoline energy to electrical energy? How many pound of CO2 does the generator emit per day?
In: Electrical Engineering
By using MATLAB
1. Divide a speech signal or music signal into frames of size N
= 64.
2. Compute the N?point DFT of each frame.
3. Save only first L = 20 DFT coefficients.
4. Reconstruct the frame from these L coefficients. (Do not disturb
the symmetry
of DFT during inverse DFT computation. X[k] = X[N ?k] for real
signals, N = 64
here. Pad zeros for missing DFT coefficients.)
5. Comment on the quality of reconstructed and the original speech
signal.
6. What is the effective data compression ratio? Note that DFT
coefficients may be
complex valued!
7. Repeat the above experiment for L = 10 and L = 5.
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In: Electrical Engineering
In: Electrical Engineering