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Assume that a voice channel occupies a bandwidth of 4 khz , now we need to multiplex 10 digitized voice channel (assuming 8 bit per sample) using synchronous TDM. if the interleaved unit is 1 byte . 1 extra bit is added per fram for synchronization. What is
a) size of output frameb) output frame ratec) duration of an output framed) output data ratee) efficiency of the system ( ratio of useful bits to the total bits)
An airplane has a mass of 3*10^4 kg and takes off under the influence of a constant net force of 35 000 N. What is the net force that acts on the plane's 80-kg pilot, assuming that he has the same acceleration as the plane
In a unity feedback system, the open-loop transfer function is of the form Gol(s) = k/(1+s/ωp). Calculate the bandwidth of the closed-loop transfer function. How does the bandwidth depend on K and ωp
From a large lot of new tires, n tires are to be sampled by a potential buyer, and the number of defectives X is to be observed. If at least one defective is observed in the sample of n tires, the entire lot is to be rejected by the potential buye..
Suppose we transmitted 5 cos wct for logic one and 15 cos wct for logic zero. Find the maximum signal energy. Design a demodulator and show the detection criterion for the output of the demodulator. Finally, find the bit error-rate.
given analog signal : x(t)=8cos(6,000pi)+5cos(14,000pit) t>=0 sampled at rate 12,000 Hz a) sketch the spectorum of the orignal signal and the sampled signal from 0 KHz and 25 KHz.
A transformer has 100 turns on the primary (terminals 1-1') and 200 turns on the secondary (terminals 2-2'). A current in the primary causes a magnetic flux, which links all turns of both the primary and the secondary.
a) Generate the State Transition Table, which should include the binary( ones and zeroes) values of the Flip Flop inputs which then enable you to determine next states based on current states. b) Draw the State Diagram for the system.
A parallel circuit contains an AC voltage source of 3 Vrms, 100 Hz. The output of the voltage source is connected to a diode (1N4004). After the diode, connected in parallel are a 0.1uF capacitor and a 100 kohm resistor.
Three screws are drawn at random from a lot of 100 screws, 10 of which are defective. Find the probability that the screws drawn will be nondefective in drawing (a) with replacement, (b) without replacement.
Suppose the volume X occupied by a capacitor is A*d where A is the total area of the dielectric layers and d is the thickness of each dielectric layer (this assumes that the metal plates are infinitely thin).
If the telephone instrument has a resistance of 200 ohms when off hook and represents an open circuit when on hook calculate the combined resistance of the local loop and the power source at the central office.
(a) ZL = 80+j60 , what is the load reflection coecient. (b) Design a short circuit stub matching circuit to match the load to Z0 of 50-ohms. State the distances in wavelengths and in centimeters.
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