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1. We consider a Rayleigh fading signal. Suppose that a single branch receiver has a 10% chance of being 5 dB below a certain SNR threshold γo.
a) Determine the mean of the Rayleigh fading signal as reference to the threshold mentioned in the above, i.e., γo.
b) What is the probability that the receiver signal will be 8 dB below γo if b1) a single branch receiver b2) a two branch selection diversity receiver b3) a three branch selection diversity receiver, or b4) a four branch selection diversity receiver is used, respectively.
2. Consider a two-tap adaptive equalizer shown below, where yk = cos(2Πk /N) and dk =10sin(2Πk/N) with N>2. Find the minimum MSEand the corresponding equalizer weights wo, w1.
A circular disk having a radius of 4 ft and weighing 40lb has a small weight of 20lb attached to it at a distance of 2ft from its center. If the disk is in the vertical plane and set in rotation about an axis through its center so that its minimum..
A power amplifier has a gain of 15 dB and an input level of 2 volts. Assuming that the input and output impedances are the same, what is the voltage level at the amplifier output
where H is an A/M and B is in T. If a magnetic circuit contains a 12 cm length of material X, as well asa 0.25 mm air gap, assume a uniform cross section of 2.5 cm2 and find the total mmf (Vm) to produce a flux of
Describe what causes the human body to have resistance and what factors can affect the resistance of the human body.
for each implicant in f indicate its reducibility.perform the expand operation on fa b c e0 1 2 5 6 7 where e
If the two currents are doubled, is the point of zero magnetic field shifted toward wire 1, shifted toward wire2, or unchanged?
use the method of recursion to solve the following problems: compute y[n] for n = 0,1.2, when x[n] = 0 for all n andy[-l] = 2. Compute y[n] for n = 0,1.2, when x[n] = u[n]and y[-l] = 0. Compute y[n] for n = 0,1.2, when x[n] = u[n]and y[-l] = 2.
Write a program to generate a 25-Hz digital waveform with a 50 percent duty cycle on the PT0 pin as long as the voltage level on the PP7 pin is high. Your program should consist of two parts: Entry test. As long as the PP7 pin is low, it stays in t..
how big will be capacitance connected on series with resistor R=30 omega in AC circuit with input voltage U1 = (200+2*17) V and frequency 50 Hz if the power factor is 0.7
A silicon diode has a doping profile such that ND = ax3. What is the depth of the junction assuming the p side is uniformly doped with NA per cubic cm. Assume the x origin is at an ideal ohmic contact on the n side of the diode.
Phosphorous is an n-type dopant in Si since it introduces extra electrons to Si (an P atom has 1 more valence electron than Si). It is widely used in making semiconductor devices (p-n junctions for example).
Find the electric potential mid-way between the surface of the sphere and the surrounding shell
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