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a. Plot the spectra of X(w) = t sinc(wt/2). Let t = 1 and -20 =< w =< 20
b. Calculate the energy within this bandwidth using the "quad" function.
c. Calculate the essential bandwidth using (i) 90% and (ii) 96% energy.
How many voice channels are carried by a E1 transmission given 8 kHz sampling and 8 bit words? Why is an end of frame marker always required in a digital telephony system?
You have an amplifer with a nominal open-loop gain of 1000 (A = 1000), but the variance in the gain is 20% (meaning that the open-loop gain ranges in value from 800 to 1200). You want to use feedback to try to desensitize the gain.
Develop with MATLAB, a fuzzy control system for controlling the power of a motor (0-350 rpm) based on the supported load (0-1700 lbs) thereby that at greater load develops more power. The system must contain at least 5 rules, but preferably 7.
A positive charge of magnitude q1 lies at the origin. Derive an expression for the incremental work done in moving a second point charge q2 through a distance dx from the starting position (x, y, z) in the direction -ax.
Discuss the procedure for design using anthropometric data. Include Confidence Intervals (CIs). Select any one anthropometric measurement for males or females in Table 5.3 and find 90% CI for the mean measurement of the population.
Calculate the inductive reactance per meter of a single-phase, 50-Hz, two-wire transmission line. Assume each conductor's radius is 6cm and the distance between the two conductors is 3m.
"Power Outage" refers to that the receive signal power falls below a certain threshold. Consider for a RF signal in a Rayleigh fading channel with average receive signal power 22 = - 80dBm. What will be the power outage probability of this channel..
A constellation diagram has four points located at (2,2), (-2,2), (-2, -2), and (2, -2) on the I(in-phase)-Q(quadrature phase) plane. Find the value of peak amplitude and the type of modulation this diagram represents.
Dispense requested amount using least number of bills, Write a C program for an automatic teller machine that dispenses money. The user should enter the amount desired (a multiple of 10 dollars)
A hybrid communication system uses both AMSC and FM. The information signal a(t) is first AMSC modulated with the subcarrier frequency 1000 Hz. Then it passes through an FM modulator with the carrier frequency 10Mhz.
the operation of an induction machine here used as an asynchronous generator her connected to a 3 phase electric system. a) What does asychronous mean in this context b) How is it possible to improve the operation of this generator on the system
computation with 5% of the code that cannot be paralleled, compute the speedup and efficiency.
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